79269-71-9Relevant academic research and scientific papers
Complexes bi- et polymetalliques a base de cobalt derives du titanocene et du vanadocene
Martin, J.,Fauconet, M.,Moise, C.
, p. 87 - 100 (1989)
The bimetallic complexes Cp2Ti (3) and Cp2V (5) are obtained from the reaction of Cp2MCl (M=Ti, V) with - or from the reaction of Cp2V with Co2(CO)8.The IR data of 3 are indicative of a bridging carbonyl ligand between the two metallic moieties whereas a stretching frequency in the IR spectrum of 5 suggests a direct vanadium-cobalt bond.A fast evolution of these complexes is observed leading to the oxymethylidynetricobalt nonacarbonyl derivatives Cp2M.With substituted cyclopentadienyl complexes, the bimetallic complexes are not isolated and only cobalt cluster derivatives are obtained.
STRUCTURE AND REACTIVITY OF SUBSTITUTED DI-η5-CYCLOPENTADIENYL METAL DIHALIDES. CRYSTAL STRUCTURE OF DICHLOROBIS(Η5-t-BUTYLCYCLOPENTADIENYL)ZIRCONIUM(IV)
Howie, R.A.,Mcquillan, G.P.,Thompson, D.W.,Lock, G.A.
, p. 213 - 220 (1986)
A new approach to the synthesis of t-butylcyclopentadienyl and related anions, via the addition of methyl- or other alkyl-lithium compounds to dimethylfulvene, is reported and details are given for the preparation of (η5-t-BuCp)2ZrCl2 and (η5-t-BuCp)2TiCl2.The zirconium compound is orthorhombic, P21212, a 13.003(17), b 10.761(10), c 6.703(8) Angstroem.A crystal structure determination (R = 0.037, 980 reflections) shows that the t-butyl groups are directed away from each other on opposite sides of the molecule: this structure appears to be adopted only in molecules in which the substituent groups are too bulky to be accommodated directly above and below the MCl2 group.
SYNTHESIS OF METALLACYCLOSULFANES (RC5H4)2TiS5 FROM DIMERIC LOW VALENT ALKYLTITANOCENE CHLORIDE
Tainturier, G.,Gautheron, B.
, p. 11 - 14 (2007/10/02)
The new Ti(III) complexes 2 (R=iPr, tBu; Cp=η5-C5H4) were obtained by chemical reduction (Al/Hg) of the corresponding dichlorides.The further reaction of sulfur powder at room temperature led exclusively to titanacyclohexasulfane and alkyltitanocene dichloride.The various new complexes were fully characterized by NMR, mass spectrometry and microanalyses.
