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η3-Allyl complexes of molybdenum—IV. Preparation and crystal structures of some substituted-cyclopentadienyl molybdenum allyl derivatives

Authors
Journal
Polyhedron
0277-5387
Publisher
Elsevier
Publication Date
Volume
8
Issue
2
Identifiers
DOI: 10.1016/s0277-5387(00)86504-3

Abstract

Abstract A series of substituted-cyclopentadienyl molybdenum allyl derivatives has been prepared by reacting (η 3-C 3H 5) 3MoCl with substituted-cyclopentadienyl and -indenyl alkali metal salts. In general, the isolated products are of the type Cp′Mo(η 3-C 3H 5) 2 and in three cases this has been confirmed by crystal structure determinations. Spectroscopic evidence suggests that at low temperatures compounds have the composition Cp′Mo(η 3-C 3H 5) 2(η 1-C 3H 5) are also formed. The reaction with potassium fluorenyl is anomalous: the NMR spectra and a crystal structure determination show that the product (η 3-fluorenyl)Mo(η 3-C 3H 5) 3, contains four η 3-allyl groups bonded unsymmetrically to the metal atom.

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