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  • 1985-1989  (7)
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  • 1
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Chalcogenidosilicates: Ba2SiTe4 and Ba2SiSe4The new compounds Ba2SiSe4 and Ba2SiTe4 crystallize in the monoclinic system, space group: P21/m (No. 11) with the lattice constants s. “Inhaltsübersicht”. Both compounds are isotypic to the Sr2GeS4 structure. Ba2SiTe4 is the first o-telluridosilicate with discrete SiTe44- anions.
    Notes: Die neuen Verbindungen Ba2SiSe4 und Ba2SiTe4 kristallisieren monoklin (Raumgruppe: P21/m, Nr. 11) in der Sr2GeS4-Struktur mit den GitterkonstantenBa2SiSe4: a = 918,4(5) pm, b = 703,3(3) pm, c = 687,2(3) pm, β = 109,2(1)°Ba2SiTe4: a = 965,0(5) pm, b = 762,6(3) pm, c = 746,6(3) pm, β = 108,9(1)°Ba2SiTe4 ist das erste ortho-Telluridosilicat, d. h. es treten diskrete SiTe44--Anionen auf.
    Additional Material: 2 Ill.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 530 (1985), S. 74-78 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ca5Sn2As6, The First Inoarsenidostannate(IV)The new compound Ca5Sn2As6 crystallizes in the orthorhombic system (space group Pbam (No. 55)) with the lattice constants s. „Inhaltsübersicht“. In the structure SnAs4-tetrahedra are connected by common corners to „Einereinfach“ chains. The compound belongs to the “Zintlphases”.
    Notes: Die neue Verbindung Ca5Sn2As6 kristallisiert orthorhombisch in der Raumgruppe Pbam (Nr. 55) mit den Gitterkonstanten a = 1 364,3(8) pm, b = 1 183,0(6) pm, c = 412,1(4) pm.In der Struktur sind SnAs4-Tetraeder über gemeinsame Ecken zu „Einereinfachketten“ verknüpft. Die Verbindung gehört zu den „Zintlphasen“.
    Additional Material: 1 Ill.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 532 (1986), S. 73-80 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ba3Sn2P4, a New Inophosphidostannate(III)The new compound Ba3Sn2P4 crystallizes in the monoclinic system, space group P21 (No. 4) with the lattice constants see “Inhaltsübersicht”. Distorted Sn2P6 octahedra are connected by common edges to infinite chains.
    Notes: Die neue Verbindung Ba3Sn2P4 kristallisiert monoklin in der Raumgruppe P21 (Nr. 4) mit den Gitterkonstanten a = 788,6(4) pm, b = 1927,8(8) pm, c = 786,9(4) pm,β = 112,8(1)°. Verzerrte Sn2P6-Oktaeder sind über gemeinsame Kanten zu unendlichen Ketten verknüpft.
    Additional Material: 4 Ill.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 534 (1986), S. 137-142 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Limits of the Zintl Concept. The New Compound Ba7Ga4Sb9The new compound Ba7Ga4Sb9 crystallizes in the orthorhombic system, space group Pmmn (No. 59) with the lattice constants \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm a} = 1802,4(7),\quad{\rm b} = 1086,1(4),\quad{\rm c} = 710,0(3){\rm pm}. $$\end{document} GaSb4 tetrahedra are connected by common corners and edges to strings, which are connected by long Sb—Sb bonds to sheets, separated by the Ba ions. The compound is not in accordance to the Zintl concept.
    Notes: Die neue Verbindung Ba7Ga4Sb9 kristallisiert orthorhombisch in der Raumgruppe Pmmn (Nr. 59) mit den Gitterkonstanten \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm a} = 1802,4(7),\quad{\rm b} = 1086,1(4),\quad{\rm c} = 710,0(3){\rm pm}. $$\end{document} GaSb4-Tetraeder sind über gemeinsame Ecken und Kanten zu Bändern vernetzt, die über lango Sb—Sb-Bindungen zu Schichten verbunden sind. Diese Schichten sind durch die Ba-Ionen getrennt. Die Verbindung ist nach Stöchiometrie und Struktur nicht in Übereinstimmung mit dem Zintl-Konzept.
    Additional Material: 2 Ill.
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  • 5
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Electron Deficient Compounds of Gallium: Crystal Structure of Ca3Ga5The stoichiometry of the formerly described compound Ca2Ga3 is corrected to Ca3Ga5. This compound crystallizes in the orthorhombic system, space group Cmcm (No. 63) with the lattice constants see „Inhaltsübersicht“. In the structure there is a Ga framework for which on the basis of the Gillespie/Nyholm conception and by calculating the bond numbers according to Pauling a characteristic electron concentration can be derived.
    Notes: Die Stöchiometrie der im Ca/Ga-Zweistoffsystem beschriebenen Verbindung „Ca2Ga3“ ist zu Ca3Ga5 zu korrigieren. Sie kristallisiert orthorhombisch in der Raumgruppe Cmcm (Nr. 63) mit den Gitterkonstanten: \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm a = 446,3(2)\, pm,\qquad b = 1079,9(3)\, pm,\qquad c = 1502,5(4)\,pm} $$\end{document}. In der Struktur liegt ein Ga-Raumnetzverband vor, für den sich aus der Gillespie-Nyholm-Konzeption und den Bindungsgradzahlen nach Pauling eine charakteristische Elektronenzahl ableiten läßt.
    Additional Material: 2 Ill.
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  • 6
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Structure and Vibration Spectra of Cs2P2S6 and K2P2S6.Cs2P2S6 and K2P2S6 crystallize in the orthorhombic system, space group Immm, Z = 2 with the lattice constants \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{*{20}c} {{\rm Cs}_{\rm 2} {\rm P}_{\rm 2} {\rm S}_{\rm 6} :{\rm a = 894,4(3) pm, b = 717,0(3)pm, c = 949,0(3) pm,}} \\ {{\rm K}_{\rm 2} {\rm P}_{\rm 2} {\rm S}_{\rm 6} :{\rm a = 832,5(3) pm, b = 686,4(3) pm, c = 915,4(3) pm}} \\ \end{array} $$\end{document}.The compounds are isotypic to Tl2P2S6. In the structure there are discrete P2S62- anions. Two PS4 tetrahedra are connected by a common edge to hexathiometadiphosphate groups. The far infrared, infrared, and Raman spectra of these compounds are assigned on the basis of P2S62- units with D2h symmetry in analogy to the isoelectronic Al2Cl6. The melting points are 440 ± 10°C for Cs2P2S6 and 508 ± 10°C for K2P2S6.
    Notes: Die neuen Verbindungen Cs2P2S6 und K2P2S6 kristallisieren orthorhombisch in der Raumgruppe Immm, Z = 2 mit den Gitterkonstanten \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{*{20}c} {{\rm Cs}_{\rm 2} {\rm P}_{\rm 2} {\rm S}_{\rm 6} :{\rm a = 894,4(3) pm, b = 717,0(3)pm, c = 949,0(3) pm,}} \\ {{\rm K}_{\rm 2} {\rm P}_{\rm 2} {\rm S}_{\rm 6} :{\rm a = 832,5(3) pm, b = 686,4(3) pm, c = 915,4(3) pm}} \\ \end{array} $$\end{document} und sind dem Tl2P2S2 isotyp. Sie enthalten diskrete P2S22--Anionen als Baugruppen. Zwei PS4-Tetraeder sind über eine gemeinsame Kante zum Hezathiometadiphosphat-Anion P2S22- -verknüpft.Die FIR/IR- und Ramanspektren dieser Verbindungen konnten auf der Basis der P2S22--Enheiten mit D2h-Symmetrie in Analogie zum isoelektronischen Al2Cl6 zugeordnet werden. die Schmelzpunkte ergaben sich für Cs2P2S6 zu 440±10°C und Für K2S2S6 zu 508±10°C.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 526 (1985), S. 55-59 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Na6Si2Se8, the First Perselenido SilicateThe new compound Na6Si2Se8 crystallizes in the monoclinic system, space group P21/c (No. 14) with lattice constants see „Inhaltsübersicht“. Two SiSe4 tetrahedra are connected by a Se-Se covalent bond, forming a discrete [Si2Se8]6- anion.
    Notes: Die neue Verbindung Na6Si2Se8 kristallisiert monoklin in der Raumgruppe P21/c (Nr. 14) mit den Gitterkonstanten a = 727,1(3) pm, b = 1700,7(5) pm, c = 1378,3(4) pm, β = 99,44(8)°. In der Struktur sind zwei SiSe4-Tetraeder über eine Se-Se-Bindung zu diskreten [Si2Se8]6--Anionen verknüpft.
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