ISSN:
0009-2940
Keywords:
Alkylidyne ligands
;
Rhenium complexes
;
Metal-metal multiple bonds
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Multiple Bonds Between Main-Group Elements and Transition Metals, LXXXII. - Dinuclear p-Benzylidyne Complexes Having a Double Bond between Rhenium AtomsThe dialkylrhenium(V) complex (η5-C5Me5)Re(=O)(CH2Ph)2 (3) reacts with the organotitanium reagents (η5-C5H5)TiX3 (X = Cl, Br) to yield the dinuclear rhenium(IV) complexes (η5C5Me5)2 Re2X3(CC6H5) (4a, b). According to a single-crystal X-ray diffraction analysis, 4a′ (C5Me4Et in place of C5Me5) represents one of the few known examples of μ-alkylidyne complexes that have metal-to-metal multiple bonds. The molecule of C2 symmetry has a planar four-membered Re,Cl,Re′,C-ring geometry and two trans-oriented sets of ligands. Very small angles at the bridging chloro ligand and alkylidyne carbon atom result from the short metal-metal distance (double bond).
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19901231007
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