ISSN:
1042-7163
Schlagwort(e):
Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
Sodium tricarbonylacetylcyclopentadienylmolybde-num (tungsten) reacted with Ph2SnL2 (L=Cl, Br) in a 1:1 ratio or even a 4:1 ratio only to afford bimetallic complexes CH3CO-C5H4(CO)3MSnPh2L (M=Mo. W; L=Cl or Br), which have been characterized by elemental analyses, IR and 1H NMR spectroscopy. The acetyl group on the Cp ring exerts an electron-withdrawing effect that makes the organomolybdenum anion a less effective nucleophilic agent in displacing the remaining halogen from the CH3COC5H4Mo-(CO)3.SnPh2L. The bimetallic complex could be isolated, and the crystal structure of the titled complex is orthorhombic, a = 16.271, b = 10.247(2), c = 14.450(2) Å, Z = 4, space group Pna21, and the Mo atom has a 3:4 piano stool structure with an Sn-Mo bond length of 2.7683(6) Å. © 1998 John Wiley & Sons, Inc. Heteroatom Chem 9:169-172, 1998
Zusätzliches Material:
1 Ill.
Materialart:
Digitale Medien
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