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Brette M. Chapin Lauren D. Hughs James A. Golen Arnold L. Rheingold Adam R. Johnson 《Acta Crystallographica. Section C, Structural Chemistry》2010,66(7):m191-m193
The title complex, [Ti(C5H5)(C2H6N)2Cl], exhibits two nearly planar dimethylamide groups oriented approximately perpendicular to each other. The Ti→cyclopentadienyl centroid vector lies nearly in the plane of one of the dimethylamide groups. Long‐range contacts between Ti—Cl and cyclopentadienyl H—C groups give rise to geometric ordering in the extended solid. 相似文献
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The crystal and molecular structure of Bis(η5-cyclopentadienyl)titanium(IV) dibromide, Ti(η5?C5H5)2Br2, has been investigated by an X-ray structure determination. Crystal data: triclinic, a = 7.872(5), b = 11.807(5), c = 12.310(3) Å, α = 107.62(3), β = 100.83(4), γ = 90.69(4)°, V = 1 068(14) Å3, T = 293, space group P1 , Z = 4 (there are two crystallographically independent molecules in the asymmetric unit cell and their conformations are similar). Final R and Rw values are 0.068 and 0.073, respectively. The structural results are compared to those for similar type molecules. 相似文献
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Two new Complexes(Cp)2Ti(Cin)2and (CP2)Ti(Tzea)2(CP=Cyclopentadienyl η^5-C5H5)have been synthesized in THF by the reaction of HCin(Cincofen,2-phenylquinoline-4-carboxylic acid)or HTzea(5-phenyltetrazolyl-2-ethanoic acid)with(Cp)2TiCl2,and characterized by elemental analyses,IR,1H NMR and 13C NMR,UV spectra,molar conductivity,TGDTA.In the complexes the carboxyl groups are coordinated to Ti(IV)in a monodentate manner,The inhibitory actions of the complexes on mice ear tumefaction caused by croton oil and the rat foot granulation growth produced by cotton wool are higher than those of the corresponding ligands HCin,HTzea and [(Cp)2TiCl2],while their toxicities are lower than those of the free ligands.ηη 相似文献
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Brian J. Grimmond Joyce Y. Corey Nigam P. Rath 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(1):53-55
The first title metallocene, 1,3‐bis(dichlorotitanocene)‐1,1,3,3‐tetramethyldisiloxane dichloromethane solvate, [(η5‐C5H5)TiCl2(η5‐C5H4SiMe2)]2O·CH2Cl2, (I), crystallizes in space group P21/c. Compound (I) represents the first crystal structure of a bimetallic siloxy‐bridged titanocene. The geometric parameters of (I) are similar to those of the parent titanocene; however, the disiloxane substituents adopt an unexpected eclipsed conformation. The second title metallocene, 1,3‐bis[(pentamethylcyclopentadienyl)(cyclopentadienyl)titanium dichloride]‐1,1,3,3‐tetramethyldisiloxane, [(η5‐C5‐Me5)TiCl2(η5‐C5H4SiMe2)]2O, (II), represents the second crystal structure of a bimetallic siloxy‐bridged titanocene and crystallizes in the space group P21/n. Compound (I) possesses non‐crystallographic twofold molecular symmetry and both metal centers adopt pseudo‐tetrahedral geometries. The geometric parameters of (II) are similar to those of the mixed titanocene Cp*CpTiCl2 (Cp* = C5Me5) and the disiloxane substituents adopt a staggered conformation. 相似文献
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Karel Mach Jií Kubita Ivana Císaov Petr tpni
ka 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(2):m116-m118
Reacting stoichiometric amounts of 1‐(diphenylphosphino)ferrocenecarboxylic acid and [Ti(η5‐C5HMe4)2(η2‐Me3SiC[triple‐bond]CSiMe3)] produced the title carboxylatotitanocene complex, [{μ‐1κ2O,O′:2(η5)‐C5H4CO2}{2(η5)‐C5H4P(C6H5)2}{1(η5)‐C5H(CH3)4}2FeIITiIII] or [FeTi(C9H13)2(C6H4O2)(C17H14P)]. The angle subtended by the Ti/O/O′ plane, where O and O′ are the donor atoms of the κ2‐carboxylate group, and the plane of the carboxyl‐substituted ferrocene cyclopentadienyl is 24.93 (6)°. 相似文献
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