Crystal structure and Mössbauer spectroscopic study of FeSnF6·6H2O
Identifieur interne : 001223 ( Main/Exploration ); précédent : 001222; suivant : 001224Crystal structure and Mössbauer spectroscopic study of FeSnF6·6H2O
Auteurs : Georges Denes [Canada] ; Abdelhamid Mousser [Algérie] ; Hocine Merazig [Algérie]Source :
- Hyperfine Interactions [ 0304-3843 ] ; 1994-12-01.
Abstract
Abstract: Large single crystals of FeSnF6·6H2O were grown when aqueous hydrofluoric solutions of SnF2 and FeF2 were allowed to evaporate in air. Tin-119 Mössbauer spectroscopy at ambient temperature shows a single line at slightly negative isomer shift relative to CaSnO3 at room temperature (δ=−0.380(6) mm/s, Δ=0). This is characteristic of tetravalent tin octahedrally coordinated by fluorine. The X-ray crystal structure shows that tin(IV) is coordinated by 6 fluorine atoms, and Fe(II) by 6 water molecules. Both sites show a slight distortion from octahedral symmetry: the six distances are equal (Sn-Fe=1.941(3) Å and Fe-O=2.112(3) Å), whereas there are two values of angles (Fe-Sn-F=90.4(1)° and 89.6(1)°; O-Fe-O=91.1(1)° and 88.9(1)°). The material is an ionic compound [SnF6]2−[Fe(H2O)6]2+.
Url:
DOI: 10.1007/BF02069150
Affiliations:
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Tin-119 Mössbauer spectroscopy at ambient temperature shows a single line at slightly negative isomer shift relative to CaSnO3 at room temperature (δ=−0.380(6) mm/s, Δ=0). This is characteristic of tetravalent tin octahedrally coordinated by fluorine. The X-ray crystal structure shows that tin(IV) is coordinated by 6 fluorine atoms, and Fe(II) by 6 water molecules. Both sites show a slight distortion from octahedral symmetry: the six distances are equal (Sn-Fe=1.941(3) Å and Fe-O=2.112(3) Å), whereas there are two values of angles (Fe-Sn-F=90.4(1)° and 89.6(1)°; O-Fe-O=91.1(1)° and 88.9(1)°). The material is an ionic compound [SnF6]2−[Fe(H2O)6]2+.</div></front></TEI><affiliations><list><country><li>Algérie</li><li>Canada</li></country></list><tree><country name="Canada"><noRegion><name sortKey="Denes, Georges" sort="Denes, Georges" uniqKey="Denes G" first="Georges" last="Denes">Georges Denes</name></noRegion></country><country name="Algérie"><noRegion><name sortKey="Mousser, Abdelhamid" sort="Mousser, Abdelhamid" uniqKey="Mousser A" first="Abdelhamid" last="Mousser">Abdelhamid Mousser</name></noRegion><name sortKey="Merazig, Hocine" sort="Merazig, Hocine" uniqKey="Merazig H" first="Hocine" last="Merazig">Hocine Merazig</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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