Transition Metal Derivatives of a ((Dimethylamino)ethyl)cyclopentadienyl Ligand. Synthesis and Structures of Amino-Containing Cyclopentadienyl Derivatives of Cobalt(I) and -(III) Including Water-Soluble Compounds
作者:A. I. Philippopoulos、R. Bau、R. Poilblanc、N. Hadjiliadis
DOI:10.1021/ic970740h
日期:1998.9.1
of 5 with HBF(4) in ether solutions yielded [eta(5)-C(5)H(4)(CH(2))(2)N(H)Me(2)}Co(I)(CO)(2)](+)BF(4)(-) (6). Oxidation of 5 with I(2) or Cl(2) gas yielded [eta(5)-C(5)H(4)(CH(2))(2)NMe(2)}Co(III)I(2)] (7a) and [eta(5)-C(5)H(4)(CH(2))(2)NMe(2)}Co(III)Cl(2)] (7b). Addition of HBF(4) to complex 7a resulted in the breaking of the Co(III)-NMe(2) bond, producing the dimeric complex [(eta(5)-C(5)H(4
Intramolecular N−H···H−Ru Proton−Hydride Interaction in Ruthenium Complexes with (2-(Dimethylamino)ethyl)cyclopentadienyl and (3-(Dimethylamino)propyl)cyclopentadienyl Ligands. Hydrogenation of CO<sub>2</sub> to Formic Acid via the N−H···H−Ru Hydrogen-Bonded Complexes
作者:Hei Shing Chu、Chak Po Lau、Kwok Yin Wong、Wing Tak Wong
DOI:10.1021/om980071v
日期:1998.6.1
between the hydride ligand and N−H. An attempt to grow single crystals of [(η5-C5H4(CH2)3NMe2H+)RuH(dppm)]BPh4 for X-ray study resulted in isolation of crystals of the complex, [(η5:η1-C5H4(CH2)3NMe2)Ru(dppm)]BPh4, with the chelating (3-(dimethylamino)propyl)cyclopentadienyl ligand. Exposure of [(η5:η1-C5H4(CH2)3NMe2)Ru(dppm)]BF4 to 60 atm of H2 at 60 °C gave [(η5-C5H4(CH2)3NMe2H+)RuH(dppm)]BF4 within 30
Dinuclear μ-Sulfido Complexes of Molybdenum with (Dimethylamino)ethyl-Substituted Cyclopentadienyl Ligands
作者:B. B. Kaul、B. Noll、S. Renshaw、M. Rakowski DuBois
DOI:10.1021/om9604637
日期:1997.4.1
The cyclopentadienyl ligand with the (dimethylamino)ethyl substituent has been used in the synthesis of the dinuclear μ-sulfido molybdenumcomplex (Me2NCH2CH2CpMo(μ-S))2S2CH2, 4, and related derivatives. Complex 4 has been isolated and characterized by spectroscopic methods as well as by an X-ray diffraction study. The structure confirms a bis(μ-sulfido) derivative in which the dimethylamino substitutents
Synthese und Koordinationsverhalten Me2NCH2CH2-funktionalisierter Metallocene von Titan, Vanadium und Chrom
作者:Markus Enders、Katrin Köhler、Wolfgang Frosch、Hans Pritzkow、Heinrich Lang
DOI:10.1016/s0022-328x(96)06932-x
日期:1997.6
The reaction of TiCl4 (1a) with two equivalents of Li(C5H4CH2CH2NMe2) (2a) in toluene yields (η5-C5H4CH2CH2NMe2)2TiCl2 (3). In a similar way the vanadocene and chromocene compounds (η5-C5H4CH2CH2NMe2)2M (4a: M = V, 4b: M = Cr) could be obtained. On treatment of the titanocene dichloride 3 with two molar equivalents LiC≡CSiMe3 (5) the bis(alkynyl) titanocene (η5-C5H4CH2CH2NMe2)2Ti(C≡CSiMe3)2 (6) is
Dehydrocoupling of Phenylsilane Catalyzed by (Dimethylamino)alkyl- or Branched-Alkyl-Substituted Zirconocene Complexes: An Alternative Approach to Longer Chains
New zirconocene complexes Cp*[Cp(CH2)nNMe2]ZrCl2 (n = 2, 3) and Cp*[Cp(CH2)nCH(CH3)2]ZrCl2 (n = 1, 2) catalyze, in conjunction with 2 equiv of n-BuLi, dehydrocouplingpolymerization of phenylsilane to afford high-molecular-weight poly(phenylsilanes) (Mw > 104). 29Si NMR reveals that the microstructure of the resulting polymers is predominantly syndiotactic.