Octamolybdenum oxo-pyrazolate clusters. Syntheses, characterization, and crystal and molecular structures of the Mo(V)/Mo(VI) and Mo(VI) octamolybdenum clusters Mo8(pz)6O18(pzH)6 and Mo8(pz)6O21(pzH)6

Autor:	Alan Storr, Martin K. Ehlert, Robert C. Thompson, S. J. Rettig, James Trotter
Rok vydání:	1993
Předmět:	Chemistry Stereochemistry chemistry.chemical_element Crystal structure Trigonal crystal system Pyrazole Inorganic Chemistry Crystal Crystallography chemistry.chemical_compound Molybdenum X-ray crystallography Molecule Physical and Theoretical Chemistry Monoclinic crystal system
Zdroj:	Inorganic Chemistry. 32:5176-5182
ISSN:	1520-510X 0020-1669
DOI:	10.1021/ic00075a039
Popis:	Two octamolybdenum compounds, containing both bridging pyrazolate and terminal pyrazolc ligands, have been prepared by the reaction of molten pyrazole with molybdenum oxides, and their structure have been determined by single-crystal X-ray diffraction. Crystals of Mo 8 (pz) 6 O 18 (pzH) 6 .2pzH (1; pzH=pyrazole, C 3 H 4 N 2 ; pz=pyrazolate anion, C 3 H 3 N 2 ) are monoclinic, space group C2/c, with a=23.026(3) A, b=13.345(3) A, c=23.314(2) A, β=114.827(8) . , and Z=4; and those of Mo 8 (pz) 6 O 21 (pzH) 6 .3pzH .1 / 2 H 2 O (2) are trigonal, space group R3 a=20.005(2) A, c=30.567(5) A, and Z=6
Databáze:	OpenAIRE
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