<?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>S0035-001X2020000100030</article-id>
<article-id pub-id-type="doi">10.31349/revmexfis.66.30</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Synthesis and crystal structure determination of the new olivine-type compound Mn2Sn&#61441;Se4]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
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<surname><![CDATA[Chacón]]></surname>
<given-names><![CDATA[C.]]></given-names>
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</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delgado-Niño]]></surname>
<given-names><![CDATA[P.]]></given-names>
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<contrib contrib-type="author">
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<surname><![CDATA[Delgado]]></surname>
<given-names><![CDATA[G. E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
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</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Petróleo  ]]></institution>
<addr-line><![CDATA[ Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Libre Facultad de Ingeniería ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Los Andes Facultad de Ciencias ]]></institution>
<addr-line><![CDATA[Mérida ]]></addr-line>
<country>Venezuela</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2020</year>
</pub-date>
<volume>66</volume>
<numero>1</numero>
<fpage>30</fpage>
<lpage>34</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2020000100030&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2020000100030&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2020000100030&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The Mn2Sn &#61441;Se4 compound, manganese tin selenide, was synthesized by the melt and annealing technique and its structure was refined by the Rietveld method using X-ray powder diffraction data. This compound crystallizes in the olivine-type structure with unit cell parameters a = 12:9028(2) Å, b = 7:9001(1) Å, c = 6:5015(1) Å, V = 662:72(2) °A3 in the orthorhombic space group Pnma (N± 62). This olivine structure can be described from a hexagonal close-packing of selenium atoms where manganese atoms occupy 1/2 of the octahedral sites while thin atoms lay in 1/8 of the tetrahedra.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Olivines]]></kwd>
<kwd lng="en"><![CDATA[chacogenides]]></kwd>
<kwd lng="en"><![CDATA[semiconductors]]></kwd>
<kwd lng="en"><![CDATA[chemical synthesis]]></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[61.05.cp]]></kwd>
<kwd lng="en"><![CDATA[61.50.Nw: 61.66.Fn]]></kwd>
<kwd lng="en"><![CDATA[61.40.b]]></kwd>
</kwd-group>
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