<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0187-893X</journal-id>
<journal-title><![CDATA[Educación química]]></journal-title>
<abbrev-journal-title><![CDATA[Educ. quím]]></abbrev-journal-title>
<issn>0187-893X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Química]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-893X2024000200033</article-id>
<article-id pub-id-type="doi">10.22201/fq.18708404e.2024.2.86707</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Introducción a la interpretación de Ciclos Catalíticos: una metodología sencilla para estudiantes universitarios de segundo año]]></article-title>
<article-title xml:lang="en"><![CDATA[Introduction to the interpretation of Catalytic Cycles: a straight Forward methodology for sec- ond-year university students]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guerrero-Ríos]]></surname>
<given-names><![CDATA[Itzel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas-Montoya]]></surname>
<given-names><![CDATA[Iván Darío]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reina]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Química Departamento de Química Inorgánica y Nuclear]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<volume>35</volume>
<numero>2</numero>
<fpage>33</fpage>
<lpage>50</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-893X2024000200033&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-893X2024000200033&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-893X2024000200033&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El conteo de electrones y la regla de los 18 electrones son herramientas importantes para la comunidad académica porque ofrecen información valiosa sobre un compuesto de coordinación, en particular para predecir su estabilidad y reactividad catalítica. En este trabajo, presentamos una metodología algebraica de fácil aplicación basada en el método de conteo covalente que permite al estudiante contar electrones mediante ecuaciones matemáticas. Además, proporciona información adicional sobre el compuesto de coordinación, incluyendo el número de electrones de valencia, el número de coordinación, el estado de oxidación y el número de electrones no enlazantes. A lo largo del manuscrito, mostramos cómo estos cuatro parámetros son útiles para reconocer los pasos elementales en catálisis, y se proporciona un árbol de decisiones para hacerlo. Finalmente, presentamos una metodología para interpretar ciclos catalíticos. Esta actividad se probó con más de 150 estudiantes de la Facultad de Química de la UNAM, con resultados alentadores en cuanto al conocimiento adquirido en el conteo de electrones e interpretación de ciclos catalíticos. Por lo tanto, creemos firmemente que esta estrategia puede ser muy útil para estudiantes universitarios, docentes e investigadores.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Electron counting and the 18-electron rule are important tools for the academic community because they offer valuable information about the metal complex in particular for predicting its stability and catalytic reactivity. Herein, we present an easy appliable algebraic methodology based on the covalent counting method that allows the student to count electrons with mathematical equations. Moreover, it provides further information about the metal complex including valence electron number, coordination number, oxidation state and non- bonding electron number. Across the manuscript we show how these four parameters are helpful for recognizing elementary steps in catalysis, and a decision tree is furnished to do so. Finally, we provide a methodology for interpretating catalytic cycles. This activity was tested with more than 150 students from Facultad de Química, UNAM with encouraging results in acquired knowledge for electron counting and catalytic cycle interpretation. Thus, we strongly believe that this strategy can be very useful for undergraduates, educators and researchers.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Segundo año de licenciatura]]></kwd>
<kwd lng="es"><![CDATA[Química Inorgánica]]></kwd>
<kwd lng="es"><![CDATA[Toma de decisiones]]></kwd>
<kwd lng="es"><![CDATA[Catálisis]]></kwd>
<kwd lng="es"><![CDATA[Organometálica]]></kwd>
<kwd lng="es"><![CDATA[Estados de oxidación]]></kwd>
<kwd lng="es"><![CDATA[Conteo de electrones]]></kwd>
<kwd lng="es"><![CDATA[Ciclo catalítico]]></kwd>
<kwd lng="en"><![CDATA[Second-year Undergraduate]]></kwd>
<kwd lng="en"><![CDATA[Inorganic Chemistry]]></kwd>
<kwd lng="en"><![CDATA[Decision Making]]></kwd>
<kwd lng="en"><![CDATA[Catalysis]]></kwd>
<kwd lng="en"><![CDATA[Organometallic]]></kwd>
<kwd lng="en"><![CDATA[Oxidation State]]></kwd>
<kwd lng="en"><![CDATA[Electron counting]]></kwd>
<kwd lng="en"><![CDATA[Catalytic cycle]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ahmad]]></surname>
<given-names><![CDATA[W.-Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Omar]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Drawing Lewis structures: A step-by-step approach]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>1992</year>
<volume>69</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>791-2</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ahmad]]></surname>
<given-names><![CDATA[W.-Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Zakaria]]></surname>
<given-names><![CDATA[M. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Drawing Lewis Structures from Lewis Symbols: A Direct Electron-Pairing Approach]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>2000</year>
<volume>77</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>329-31</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Astruc]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Organometallic Chemistry and Catalysis]]></source>
<year>2007</year>
<publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bhadari]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Mukesh]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Homogeneous Catalysis: Mechanisms and Industrial Applications]]></source>
<year>2014</year>
<publisher-name><![CDATA[Wiley]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bochmann]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Organometallics and Catalysis: An Introduction]]></source>
<year>2015</year>
<publisher-name><![CDATA[Oxford University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Brady]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Milbury-Steen]]></surname>
<given-names><![CDATA[J. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Bureister]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Lewis structure skills: Taxonomy and difficulty levels]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>1990</year>
<volume>67</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>491-3</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Catlow]]></surname>
<given-names><![CDATA[C. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Davidson]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hardacre]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Hutchings]]></surname>
<given-names><![CDATA[G. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Catalysis making the world a better place]]></article-title>
<source><![CDATA[Philosophical Transactions of the Royal Society A]]></source>
<year>2015</year>
<volume>374</volume>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chalk]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Harrod]]></surname>
<given-names><![CDATA[J. F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Homogeneous Catalysis. II. The Mechanism of the Hydrosilation of olefins Catalyzed by Group VIII Metal Complexes]]></article-title>
<source><![CDATA[Journal of the American Chemical Society]]></source>
<year>1965</year>
<volume>87</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>16-21</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Crabtree]]></surname>
<given-names><![CDATA[R. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Mingos]]></surname>
<given-names><![CDATA[D. M. P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Comprehensive Organometallic Chemistry III, Volume 1, Chapter 1]]></source>
<year>2007</year>
<publisher-name><![CDATA[Elsevier]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Delolo]]></surname>
<given-names><![CDATA[F. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Neumann]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[dos Santos]]></surname>
<given-names><![CDATA[E. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Gusevskaya]]></surname>
<given-names><![CDATA[E. V.]]></given-names>
</name>
<name>
<surname><![CDATA[Beller]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cobalt-Catalyzed Hydroformylation under Mild Conditions in the Presence of Phosphine Oxides]]></article-title>
<source><![CDATA[ACS Sustainable Chemistry y Engineering]]></source>
<year>2021</year>
<volume>9</volume>
<page-range>5148-54</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Duncan]]></surname>
<given-names><![CDATA[A. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Johnson]]></surname>
<given-names><![CDATA[A. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A &#8220;Classic Papers&#8221; Approach to Teaching Undergraduate Organometallic Chemistry]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>2007</year>
<volume>84</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>443-6</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Elschenbroich]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Salzer]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Organometallic: A Concise Introduction]]></source>
<year>1992</year>
<publisher-name><![CDATA[VCH]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Green]]></surname>
<given-names><![CDATA[M. L.-H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A new approach to the formal classification of covalent compounds of the elements]]></article-title>
<source><![CDATA[Journal of Organometallic Chemistry]]></source>
<year>1995</year>
<volume>500</volume>
<page-range>127-48</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Green]]></surname>
<given-names><![CDATA[M. L.-H.]]></given-names>
</name>
<name>
<surname><![CDATA[Parkin]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Application of the Covalent Bond Classification Method for the Teaching of Inorganic Chemistry]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>2014</year>
<volume>91</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>807-16</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hartwig]]></surname>
<given-names><![CDATA[J. F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Organotransition Metal Chemistry: From Bonding to Catalysis]]></source>
<year>2010</year>
<publisher-name><![CDATA[University Science Books]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Housecroft]]></surname>
<given-names><![CDATA[C. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Sharpe]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Inorganic Chemistry]]></source>
<year>2012</year>
<publisher-name><![CDATA[Pearson]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jackson]]></surname>
<given-names><![CDATA[B. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Harshman]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Miliordos]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Addressing the Hypervalent Model: A Straightforward Explanation of Traditionally Hypervalent Molecules]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>2020</year>
<volume>97</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>3638-46</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jensen]]></surname>
<given-names><![CDATA[W. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Abegg, Lewis, Langmuir, and the octet rule]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>1984</year>
<volume>61</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>191-200</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jensen]]></surname>
<given-names><![CDATA[W. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Origin of the 18-electron rule]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>2005</year>
<volume>82</volume>
<numero>1</numero>
<issue>1</issue>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Joki]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Aksela]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The challenges of learning and teaching chemical bonding at different school levels using electrostatic interactions instead of the octet rule as a teaching model]]></article-title>
<source><![CDATA[Chemistry Education Research and Practice]]></source>
<year>2018</year>
<volume>19</volume>
<page-range>932-53</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Langmuir]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Types of Valence]]></article-title>
<source><![CDATA[Science]]></source>
<year>1921</year>
<volume>54</volume>
<page-range>59-67</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lever]]></surname>
<given-names><![CDATA[A. B. P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Lewis structures and the octet rule. An automatic procedure for writing canonical forms]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>1972</year>
<volume>49</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>819-21</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McArdle]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Systematic Procedure for Drawing Lewis Structures Based on Electron Pairing Priority and the Explicit Use of Donor Bonds: An Alternative to the Normal Procedure Which Can Be Pen and Paper Based or Automated on a PC in User Interactive 3D]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>2019</year>
<volume>96</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>1412-7</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mingos]]></surname>
<given-names><![CDATA[D. M. P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Complementary spherical electron density model and its implications for the 18 electron rule]]></article-title>
<source><![CDATA[Journal of Organometallic Chemistry]]></source>
<year>2004</year>
<volume>689</volume>
<page-range>4420-36</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Miessler]]></surname>
<given-names><![CDATA[G. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Spessard]]></surname>
<given-names><![CDATA[G. O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Organometallic Chemistry: A Course Designed for Sophomore Chemistry Students]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>1991</year>
<volume>68</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>16-9</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mitchell]]></surname>
<given-names><![CDATA[P. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Parish]]></surname>
<given-names><![CDATA[R. V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Eighteen-Electron Rule]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>1969</year>
<volume>46</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>811-4</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nassif]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Czerwinski]]></surname>
<given-names><![CDATA[W. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Teaching Beginning Chemistry Students Simple Lewis Dot Structures]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>2015</year>
<volume>92</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1409-11</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Powell]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Principles in Organometallic Chemistry]]></source>
<year>1998</year>
<publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rasmussen]]></surname>
<given-names><![CDATA[S. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The 18-electronruleandelectroncountingintransition metalcompounds: theory and application]]></article-title>
<source><![CDATA[ChemTexts]]></source>
<year>2015</year>
<volume>1</volume>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reina]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Ortega]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Gracia-Mora]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Marín-Becerra]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Reina]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[CADMIO: Creating and Curating an Educational YouTube Channel with Chemistry Videos]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>2021</year>
<volume>98</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>3593-9</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reina]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Guerrero-Ríos]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Reina]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Study of Metal-Carbonyl Complexes by Means of Computational IR Spectra Analysis: A Remote Didactic Approach Based on Chemical Thinking]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>2022</year>
<volume>99</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>3211-7</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reisner]]></surname>
<given-names><![CDATA[B. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Stewart]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Williams]]></surname>
<given-names><![CDATA[B. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Goj]]></surname>
<given-names><![CDATA[L. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Holland]]></surname>
<given-names><![CDATA[P. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Eppley]]></surname>
<given-names><![CDATA[H. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Johnson]]></surname>
<given-names><![CDATA[A. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Virtual Inorganic Pedagogical Electronic Resource Learning Objects in Organometallic Chemistry]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>2012</year>
<volume>89</volume>
<page-range>185-7</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schaller]]></surname>
<given-names><![CDATA[C. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Graham]]></surname>
<given-names><![CDATA[K. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Johnson]]></surname>
<given-names><![CDATA[B. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Modules for Introducing Organometallic Reactions: A Bridge between Organic and Inorganic Chemistry]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>2015</year>
<volume>92</volume>
<page-range>986-92</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[See]]></surname>
<given-names><![CDATA[R. F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Which Method of Assigning Bond Orders in Lewis Structures Best Reflects Experimental Data? An Analysis of the Octet Rule and Formal Charge Systems for Period 2 and 3 Nonmetallic Compounds]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>2009</year>
<volume>86</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>1241-7</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Semba]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Nakao]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arylboration of Alkenes by Cooperative Palladium/Copper Catalysis]]></article-title>
<source><![CDATA[Journal of the American Chemical Society]]></source>
<year>2014</year>
<volume>136</volume>
<numero>21</numero>
<issue>21</issue>
<page-range>7567-70</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shao]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Combining Transition Metal Catalysis and Organocatalysis: A Broad New Concept for Catalysis]]></article-title>
<source><![CDATA[Chemical Society Reviews]]></source>
<year>2009</year>
<volume>38</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>2745&#8722;2755</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Spessard]]></surname>
<given-names><![CDATA[G. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Miessler]]></surname>
<given-names><![CDATA[G. L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Organometallic Chemistry]]></source>
<year>2010</year>
<publisher-name><![CDATA[Oxford University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Straub]]></surname>
<given-names><![CDATA[D. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Lewis Structures of Oxygen Compounds of 3p-5p Nonmetals]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>1995</year>
<volume>72</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>889-91</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tolman]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The 16- and 18-electron rule in organometallic chemistry and homogeneous catalysis]]></article-title>
<source><![CDATA[Chemical Society Reviews]]></source>
<year>1972</year>
<volume>1</volume>
<page-range>337-53</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Van Leuwen]]></surname>
<given-names><![CDATA[P. W. N. M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Homogeneous Catalysis]]></source>
<year>2004</year>
<publisher-name><![CDATA[Kluwer Academic Publishers]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zandler]]></surname>
<given-names><![CDATA[M. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Talaty]]></surname>
<given-names><![CDATA[E. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The &#8220;6N+2 Rule&#8221; for writing Lewis octet structures]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>1984</year>
<volume>61</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>124-7</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zoeller]]></surname>
<given-names><![CDATA[J. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Agreda]]></surname>
<given-names><![CDATA[V. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Cook]]></surname>
<given-names><![CDATA[S. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Lafferty]]></surname>
<given-names><![CDATA[N. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Polichnowski]]></surname>
<given-names><![CDATA[S. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Pond]]></surname>
<given-names><![CDATA[D. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Eastman Chemical Company Acetic Anhydride Process]]></article-title>
<source><![CDATA[Catalysis Today]]></source>
<year>1992</year>
<volume>13</volume>
<page-range>73-91</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
