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MO 4 O 8 ((CH 3 ) 2 POS) 4 , ein Molybdän(V)-Sauerstoff-Kuban / MO 4 O 8 ((CH 3 ) 2 POS) 4 ; a Molybdenum(V) Oxygen Cubane

1980; De Gruyter; Volume: 35; Issue: 3 Linguagem: Inglês

10.1515/znb-1980-0303

1865-7117

Rainer Mattes, K.‐M. Mühlsiepen,

Organometallic Compounds Synthesis and Characterization

The tetranuclear complex Mo 4 O 8 ((CH 3 ) 2 POS) 4 has been synthetized by reacting MOCl 5 with Na((CH 3 ) 2 POS) in CHCl 3 /CCl 4 solutions. The structures of two crystalline modifications (I and II), containing different amounts of solvent, have been determined by X-ray crystallography. In both, four molybdenum and four oxygen atoms are situated at the corners of a highly distorted cube. Each Mo atom has a terminal oxo group. The Mo atoms form two MO 2 pairs through Mo-Mo bonds. The bidentate (CH 3 )POS- ligands coordinate to two Mo atoms of different pairs. The sulfur atoms of the ligands are partially replaced by oxygen atoms.