ISSN:
0009-2940
Keywords:
Cyclopentadienyl ligand, functionalized
;
Half-sandwich complexes
;
Cobalt complexes
;
Intramolecular C=C bond coordination
;
Reductive complexation
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Thermolysis of [1-(3-butenyl)-2,3,4,5-tetramethylcyclopentadienyl]carbonyldiiodocobalt, (η5-C5Me4CH2CH2CH=CH2)-Co(CO)I2 (2), in boiling octane affords the dimeric diiodide [(η5-C5Me4CH2CH2CH=CH2)-COI2]2 (3) without any interference of the 3-butenyl chain with the cobalt center. 2 reacts with various two-electron ligands L (L=P(OMe)3, P(OPh)3, PPh3, PMe3, PMe2Ph, tBuNC] to give a series of cobalt(III) complexes of the general formulae (η5-C5Me4CH2CH2CH=CH2)-Co(L)I2 (4-9). Sodium amalgam reduction of these “open-chain” complexes 4-9 yields novel cobalt(1) complexes containing an intramolecularly coordinated C=C bond (η5:η2-C5Me4CH2CH2CH=CH2)-Co(L). For L=CO (12), P(OMe)3 (13), and P(OPh)3 (14) low-melting crystals are isolated and fully characterized by analytical and spectroscopic methods.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19901230809
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