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- W2121835678 abstract "The salt [(CH3)4N]2[Sb6O4(NCS)12] is the first identified thiocyanato-oxy-antimonate(III) complex. Reported are details of the synthesis, relevant infrared data and its x-ray structure. The compound crystallizes in the triclinic space group P1 with Z = 2 (C10H12N7O2S6Sb3) and unit cell dimensions a = 11.314(6), b = 12.846(3), c = 8.679(2) A; α = 91.93(3)°, β = 90.31(3)° and γ = 99.13(3)°. It contains centrosymmetric [Sb6O4(NCS)12]2− anions packed with isolated tetramethyl-ammonium cations. The fundamental structural element of the anion is provided by the fusion of three SbOSbO rings forming a zig-zag portion of a ribbon, only slightly pleated. Peculiar is the unequivalence of the six thiocyanate ligands, though all primarily N-bonded to antimony atoms. Three thiocyanates are terminal while other three are asymmetrically N-bridging between two centers; two of this latter type are also interconnecting the anions via Sb⋅⋅⋅S contacts. There are three different antimony environments, the primary bonding at Sb being to one nitrogen and three oxygens, to one oxygen and three nitrogens and to two atoms of each type.Darstellung, Kristallstruktur und IR-Charakterisierung des ersten Thiocyanato-oxyantimonats(III), [(CH3)4N]2[Sb6O4(NCS)12][(CH3)4N]2[Sb6O4(NCS)12] ist der erste Thiocyanato-oxyantimonat(III)-Komplex. Die Synthese, wichtige IR-Daten und die Struktur werden mitgeteilt. Die Verbindung kristallisiert in der triklinen Raumgruppe P1, Z = 2 (C10H12N7O2S6Sb3), a = 11,314(6), b = 12,846(3), c = 8,679(2) A, α = 91,93(3)°, β = 90,31(3)°, γ = 99,13(3)°. Die Struktur wird aus zentrosymmetrischen [Sb6O4(NCS)12]2−-Anionen und isolierten Tetramethylammonium-Kationen aufgebaut. Das grundlegende Strukturelement des Anions wird von drei SbOSbO-Ringen gebildet, die zu einem in zick-zack-Form, leicht gefalteten Band verbunden sind. Etwas Besonderes ist die Ungleichheit der sechs Thiocyanat-Liganden, obwohl alle N-gebunden an Antimon sind. Drei Thiocyanate sind terminal, wahrend drei andere asymmetrisch N-verbruckend zwischen zwei Zentren sind; zwei von diesen verbinden die Anionen uber Sb⋅⋅⋅S-Kontakte. Fur die Antimonatome sind drei unterschiedliche Umgebungen vorhanden, einmal die Bindung an einen Stickstoff und drei Sauerstoffe, zweitens an einen Sauerstoff und drei Stickstoffe und drittens an je zwei Sauerstoffe und Stickstoffe." @default.
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- W2121835678 date "1995-12-01" @default.
- W2121835678 modified "2023-09-25" @default.
- W2121835678 title "Preparation, crystal structure, and infrared characterization of the first thiocyanato-oxy-antimonate(III) [(CH3)4N]2[Sb6O4(NCS)12]" @default.
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- W2121835678 doi "https://doi.org/10.1002/zaac.19956211216" @default.
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