1965
DOI: 10.1002/zaac.19653360502
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Über Cyanatverbindungen und deren reaktives Verhalten. I. Zur Bildung der Oxothiocyanato‐N‐wolframate(V)

Abstract: Die Entstehung der Oxothiocyanato‐N‐wolframate(V) in wäßrigen Alkalithiocyanatlösungen wird unter Verwendung verschiedener Ausgangsstoffe, wie Alkaliwolframate, WCl6, WBr6, WOCl4, WO2Cl2, WCl5, WBr5, (NH4)2[WOCl5] und (NH4)3[WO2(C2O4)2] in Abhängigkeit von der Konzentration und der Acidität untersucht. Der Reaktionsverlauf führt bei Alkaliwolframaten über kondensierte Oxoanionen und Oxothiocyanato‐N‐wolframate(VI) zu Oxothiocyanatowolframaten(V). Das polarographische Verhalten der Oxothiocyanato‐N‐wolframate(V… Show more

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Cited by 5 publications
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“…A variety of Mo­(V) and W­(VI) thiocyanate solvates can be made through the reaction of K­(NCS) or Na­(NCS) with MoCl 5 and WCl 6 in organic solvents, forming dark red (Mo) or dark brown (W) crystals, but desolvation was not possible by applying a vacuum . Oxothiocyanato metal complexes are common in these high oxidation states, but lower oxidation state molecular molybdenum and tungsten thiocyanate complexes with coligands and/or additional countercations are common and can include metal–metal bonding. DFT investigations of the binary Mo­(NCS) 2 and W­(NCS) 2 suggest they are stable and adopt layered structures, analogous to the Hg­(NCS) 2 structure, though with trigonal prismatic metal coordination and metal–metal bonding . The computational stability of these hypothetical layered structures relative to cluster structures, e.g.…”
Section: Binary Compoundsmentioning
confidence: 99%
“…A variety of Mo­(V) and W­(VI) thiocyanate solvates can be made through the reaction of K­(NCS) or Na­(NCS) with MoCl 5 and WCl 6 in organic solvents, forming dark red (Mo) or dark brown (W) crystals, but desolvation was not possible by applying a vacuum . Oxothiocyanato metal complexes are common in these high oxidation states, but lower oxidation state molecular molybdenum and tungsten thiocyanate complexes with coligands and/or additional countercations are common and can include metal–metal bonding. DFT investigations of the binary Mo­(NCS) 2 and W­(NCS) 2 suggest they are stable and adopt layered structures, analogous to the Hg­(NCS) 2 structure, though with trigonal prismatic metal coordination and metal–metal bonding . The computational stability of these hypothetical layered structures relative to cluster structures, e.g.…”
Section: Binary Compoundsmentioning
confidence: 99%