<?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>1870-249X</journal-id>
<journal-title><![CDATA[Journal of the Mexican Chemical Society]]></journal-title>
<abbrev-journal-title><![CDATA[J. Mex. Chem. Soc]]></abbrev-journal-title>
<issn>1870-249X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Química de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-249X2016000400194</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Synthesis and Characterization of Three New di-n-butyl [bis (alkyl-aminopropionic acid)]tin (IV)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nieto-Alvarez]]></surname>
<given-names><![CDATA[David Aaron]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zamudio-Rivera]]></surname>
<given-names><![CDATA[Luis S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Altamirano]]></surname>
<given-names><![CDATA[Raúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mena-Cervantes]]></surname>
<given-names><![CDATA[Violeta Y]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barba]]></surname>
<given-names><![CDATA[Victor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores-Sandoval]]></surname>
<given-names><![CDATA[César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Petróleo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Politécnico Nacional Centro Mexicano para la Producción más Limpia ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma del Estado de Morelos Centro de Investigaciones Químicas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2016</year>
</pub-date>
<volume>60</volume>
<numero>4</numero>
<fpage>194</fpage>
<lpage>199</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-249X2016000400194&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-249X2016000400194&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-249X2016000400194&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The synthesis of novel di-n-butyl [bis (alkyl-aminopropionic acid)]tin (IV) (alkyl = octyl, dodecyl, octadecyl) 2a-2c is reported. The complexes were characterized by 1H, 13C, 119Sn NMR, IR, MS and elemental analyses. For compound 2a the 119Sn NMR showed the presence of five signals suggesting the existence of a mixture of five hexa-coordinated species in equilibrium, two trans (I, II) and three cis (III, IV, V). In contrast, the compounds 2b and 2c present only unique hexa-coordinated specie.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Se reporta la síntesis de nuevos di-n-butil [bis (alquil-ácido aminopropiónico)] de estaño (IV) (alquil = octil, dodecil y octadecil) 2a-2c. Los complejos fueron caracterizados por 1H, 13C, 119Sn RMN, IR, MS y análisis elemental. Para el compuesto 2a el espectro de 119Sn RMN muestra la presencia de cinco señales sugiriendo la existencia de cinco especies hexa-coordinadas en equilibrio, dos trans (I, II) y tres cis (III, IV, V). En contraste, los compuestos 2b y 2c presentan solo una especie hexa-coordinada.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Diorganotin]]></kwd>
<kwd lng="en"><![CDATA[Sn (IV) complex]]></kwd>
<kwd lng="en"><![CDATA[tin]]></kwd>
<kwd lng="en"><![CDATA[organotin]]></kwd>
<kwd lng="en"><![CDATA[spectroscopy]]></kwd>
<kwd lng="es"><![CDATA[Diorganoestaño]]></kwd>
<kwd lng="es"><![CDATA[complejos de Sn (IV)]]></kwd>
<kwd lng="es"><![CDATA[estaño, organoestaño]]></kwd>
<kwd lng="es"><![CDATA[espectroscopía]]></kwd>
</kwd-group>
</article-meta>
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