<?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>0035-001X</journal-id>
<journal-title><![CDATA[Revista mexicana de física]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fis.]]></abbrev-journal-title>
<issn>0035-001X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-001X2008000700005</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Low temperature redetermination of the Glycine sodium nitrate structure by using X-ray single crystal diffraction technique]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nichol]]></surname>
<given-names><![CDATA[G.S]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Paredes]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Esparza Poncce]]></surname>
<given-names><![CDATA[H.E]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pacheco Beltran]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alvarez Ramos]]></surname>
<given-names><![CDATA[M.E]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Duarte-Moller]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,The University of Arizona Department of Chemistry ]]></institution>
<addr-line><![CDATA[Tucson ]]></addr-line>
<country>United States of America</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Centro de Investigación en Materiales Avanzados S. C. complejo industrial Chihuahua ]]></institution>
<addr-line><![CDATA[ Chihuahua]]></addr-line>
<country>México</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Universidad de Sonora Departamento de Física ]]></institution>
<addr-line><![CDATA[Hermosillo Sonora]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2008</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2008</year>
</pub-date>
<volume>54</volume>
<fpage>13</fpage>
<lpage>16</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2008000700005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2008000700005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2008000700005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[The redetermined structure of glycine sodium nitrate, C2H5N2NaO5, at 150°K is reported. The compound has an overall polymeric structure whilst the glycine molecule is found in the zwitterionic form. GSN crystals were characterized by XRD powder diffraction, FTIR, UV-VIS, and DTA-TGA techniques. XRD revealed that GSN have a monoclinic structure and space group Cc. Infrared spectra confirmed that the chemical elements and functional groups are present in the crystals and also collaborated the zwiterionic form of molecule. Ultraviolet-Visible spectra showed a wide optical transparent window in the range of 340-1100 nm, which is a desirable characteristic for nonlinear optics applications. DTA-TGA analysis determined that the material is stable up to 198°C.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se redefinió la estructura del compuesto C2H5N2NaO5 (GSN por su siglas del ingles "glycine sodium nitrate"). Tiene una estructura polimérica global mientras que la molécula de Glicina se encuentra en su forma zwitterionica. Los cristales de GSN se caracterizaron por diversas tecnicas: XRD de polvos, FTIR, UV-VIS y DTA-TGA. XRD reveló que GSN tiene una estructura monoclínica Cc. Los espectros infrarrojos confirmaron que los elementos químicos y los grupos funcionales están presentes en los cristales y colaboran con la forma zwitterionic de la molecula. Los espectros Ultravioleta-Visible mostraron una amplia ventana óptica transparente en el intervalo de los 340 a los 1100 nm, una característica deseable para aplicaciones en optica no lineal. DTA-TGA mostró que el material es estable hasta los 198°C.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Polymers]]></kwd>
<kwd lng="en"><![CDATA[XRD]]></kwd>
<kwd lng="en"><![CDATA[FTIR]]></kwd>
<kwd lng="en"><![CDATA[UV-Vis]]></kwd>
<kwd lng="es"><![CDATA[Polímeros]]></kwd>
<kwd lng="es"><![CDATA[XRD]]></kwd>
<kwd lng="es"><![CDATA[FTIR]]></kwd>
<kwd lng="es"><![CDATA[UV-VIS]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="center"><font face="verdana" size="4"><b>Low temperature redetermination of the Glycine sodium nitrate structure by using X&#150;ray single crystal diffraction technique</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>G.S. Nichol<sup> a</sup>, J. Hern&aacute;ndez Paredes<sup>b</sup>, H.E Esparza Poncce<sup>b</sup>, M. Pacheco Beltran<sup>c</sup>, M.E. Alvarez Ramos<sup>c</sup>, and A. Duarte&#150;Moller <sup>b , c</sup></b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>&ordf; Department of Chemistry, The University of Arizona, </i><i>1306 E University Boulevard, PO Box 210041, Tucson, AZ85721, United States of America.</i></font></p>     <p align="justify"><font face="verdana" size="2"><i><sup>b</sup> Centro de Investigaci&oacute;n en Materiales Avanzados S. C., Miguel de Cervantes Saavedra 120, complejo industrial Chihuahua, Chihuahua,31109, M&eacute;xico.</i></font></p>     <p align="justify"><font face="verdana" size="2"><i><sup>c</sup> Departamento de F&iacute;sica, Universidad de Sonora (UNISON), Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora, 83000, M&eacute;xico. e&#150;mail: <a href="mailto:alberto.duarte@cimav.edu.mx">alberto.duarte@cimav.edu.mx</a></i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">Recibido el 14 de mayo de 2007    <br> Aceptado el 26 de octubre de 2007</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">The redetermined structure of glycine sodium nitrate, C<sub>2</sub>H<sub>5</sub>N<sub>2</sub>NaO<sub>5</sub>, at 150&deg;K is reported. The compound has an overall polymeric structure whilst the glycine molecule is found in the zwitterionic form. GSN crystals were characterized by XRD powder diffraction, FTIR, UV&#150;VIS, and DTA&#150;TGA techniques. XRD revealed that GSN have a monoclinic structure and space group Cc. Infrared spectra confirmed that the chemical elements and functional groups are present in the crystals and also collaborated the zwiterionic form of molecule. Ultraviolet&#150;Visible spectra showed a wide optical transparent window in the range of 340&#150;1100 nm, which is a desirable characteristic for nonlinear optics applications. DTA&#150;TGA analysis determined that the material is stable up to 198&deg;C.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Polymers; XRD; FTIR; UV&#150;Vis.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2">Se redefini&oacute; la estructura del compuesto C<sub>2</sub>H<sub>5</sub>N<sub>2</sub>NaO<sub>5</sub> (GSN por su siglas del ingles "glycine sodium nitrate"). Tiene una estructura polim&eacute;rica global mientras que la mol&eacute;cula de Glicina se encuentra en su forma zwitterionica. Los cristales de GSN se caracterizaron por diversas tecnicas: XRD de polvos, FTIR, UV&#150;VIS y DTA&#150;TGA. XRD revel&oacute; que GSN tiene una estructura monocl&iacute;nica Cc. Los espectros infrarrojos confirmaron que los elementos qu&iacute;micos y los grupos funcionales est&aacute;n presentes en los cristales y colaboran con la forma zwitterionic de la molecula. Los espectros Ultravioleta&#150;Visible mostraron una amplia ventana &oacute;ptica transparente en el intervalo de los 340 a los 1100 nm, una caracter&iacute;stica deseable para aplicaciones en optica no lineal. DTA&#150;TGA mostr&oacute; que el material es estable hasta los 198&deg;C.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Descriptores: </b>Pol&iacute;meros; XRD; FTIR; UV&#150;VIS.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">PACS: 41.50.+h;42.15.Eq;42.25.Fx</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v54s1/v54s1a5.pdf">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Acknowledgment</b></font></p>     <p align="justify"><font face="verdana" size="2">The authors thank the Universidad de Sonora and the Centro de Investigacion en Materiales Avanzados (CIMAV) for financial support. The X&#150;ray diffractometer was funded from National Science Foundation grant CHE&#150;9610374.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>References</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">1. M.D. Aggarwal, J. Stephens, A.K. Batra, and R.B. Lal, <i>J. Optoelectronics Adv. Mater. </i><b>5</b> (2003) 555.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8401777&pid=S0035-001X200800070000500001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">2. Bruker (2001). SAINT (Version 6.22) and SMART (Version 5.622). Bruker AXS Inc., Madison, Wisconsin, USA.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8401778&pid=S0035-001X200800070000500002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">3. L.J. Farrugia, <i>J. Appl. Cryst. </i><b>30</b> (1997) 565.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8401779&pid=S0035-001X200800070000500003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">4. R.V Krishnakumar, M. Subha Nandhini,  S. Natarajan,  K. Sivakumar, and B. Varghese, <i>Acta Cryst. </i><b>C57 </b>(2001) 1149.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8401780&pid=S0035-001X200800070000500004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">5. D. Rajan Babu, D. Jayaraman, R. Mohan Kumar, and R. Jayavel, <i>J. Cryst. Growth </i><b>245 </b>(2002) 121.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8401781&pid=S0035-001X200800070000500005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">6. C. Razzetti, M. Ardoino, L. Zanotti, M. Zha, and C. Paorici, <i>Crystal Res. Technol. </i><b>37</b> (2002) 456.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8401782&pid=S0035-001X200800070000500006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">7. G.M. Sheldrick, (2001). SHELXTL. Version 6.10. Bruker AXS Inc., Madison, Wisconsin, USA.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8401783&pid=S0035-001X200800070000500007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">8. G.M. Sheldrick, (2006). SADABS. University of Gottingen, Germany.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8401784&pid=S0035-001X200800070000500008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> ]]></body><back>
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