<?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>S0035-001X2019000400360</article-id>
<article-id pub-id-type="doi">10.31349/revmexfis.65.360</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[On the crystal structure of the ordered vacancy compound Cu3In5&#9723;Te9]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delgado]]></surname>
<given-names><![CDATA[G.E.]]></given-names>
</name>
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</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rincón]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marroquín]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Los Andes Facultad de Ciencias Departamento de Química]]></institution>
<addr-line><![CDATA[Mérida ]]></addr-line>
<country>Venezuela</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Los Andes Facultad de Ciencias Departamento de Física]]></institution>
<addr-line><![CDATA[Mérida ]]></addr-line>
<country>Venezuela</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Politécnico Nacional Escuela Superior de Ingeniería Química e Industrias Extractivas ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<volume>65</volume>
<numero>4</numero>
<fpage>360</fpage>
<lpage>364</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2019000400360&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2019000400360&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2019000400360&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The crystal structure of the ordered vacancy compound (OVC) Cu3In5&#9723;Te9 was analyzed using powder X-ray diffraction data. Several structural models were derived from the structure of the Cu-poor Cu-In-Se compound &#946;-Cu0.39In1.2Se2 by permuting the cations in the available site positions. The refinement of the best model by the Rietveld method in the tetragonal space group P42c (N° 112), with unit cell parameters a = 6.1852(2) Å, c = 12.3633(9) Å, V = 472.98(4) Å3, led to Rp = 7.1 %, Rwp = 8.5 %, Rexp = 6.4 %, S = 1.3 for 162 independent reflections. This model has the following Wyckoff site atomic distribution: Cu1 in 2e (0,0,0); In1 in 2f (1/2,1/2,0), In2 in 2d (0,1/2,1/4); Cu2-In3 in 2b (1/2,0,1/4); &#9723; in 2a (0,0,1/4); Te in 8n (x, y, z).]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Semiconductors]]></kwd>
<kwd lng="en"><![CDATA[ordered vacancy compound]]></kwd>
<kwd lng="en"><![CDATA[crystal structure]]></kwd>
<kwd lng="en"><![CDATA[X-ray powder diffraction]]></kwd>
<kwd lng="en"><![CDATA[Rietveld refinement]]></kwd>
<kwd lng="en"><![CDATA[CuInTe2]]></kwd>
<kwd lng="en"><![CDATA[61.05.cp]]></kwd>
<kwd lng="en"><![CDATA[61.50.Nw]]></kwd>
<kwd lng="en"><![CDATA[61.66.Fn]]></kwd>
<kwd lng="en"><![CDATA[61.40.b]]></kwd>
</kwd-group>
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