A dinuclear, metal-metal bonded, carboxylato-bridged niobium(III) complex
| Autor: | W. J. Roth, F. Albert Cotton, Marek Matusz, Michael P. Diebold |
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| Rok vydání: | 1986 |
| Předmět: |
Tetramethylammonium
Denticity Stereochemistry Ionic bonding Nuclear magnetic resonance spectroscopy Crystal structure Inorganic Chemistry Crystallography chemistry.chemical_compound chemistry Materials Chemistry Orthorhombic crystal system Carboxylate Physical and Theoretical Chemistry Tetrahydrothiophene |
| Zdroj: | Inorganica Chimica Acta. 112:147-152 |
| ISSN: | 0020-1693 |
| DOI: | 10.1016/s0020-1693(00)84488-6 |
| Popis: | Nb2Cl6(THT)3, THT=tetrahydrothiophene, reacts with excess tetramethylammonium acetate to give an ionic Nb(III) complex, (NMe4)[Nb2Cl2(THT)(CH3CO2)5]·CH2Cl2. The compound has been characterized by NMR, IR, cyclic voltammetry and X-ray crystallography. It crystallizes in an orthorhombic space group P212121 with a=11.326(3) A, b=11.857(4) A, c=24.343(6) A, V=3269(3) A3 and Z=4. The NbNb distance is equal to 2.764(1) A which together with the diamagnetism of the complex indicates a double metal-metal bond. The acetato ligands coordinate in three different modes: bridging bidentate, chelating and bridging unidentate. |
| Databáze: | OpenAIRE |
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