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Diacetonitrile[N,N′-bis(2,6-diisopropyl-phenyl)ethane-1,2-diimine] dichloridochromium(II) acetonitrile solvate
The title compound, [CrCl2(CH3CN)2(C 26H36N2)]·CH3CN, was synthesized by the reaction of CrCl2(THF)2 with N,N′-bis-(2,6- diisopropyl-phen-yl)ethane-1,2-diimine in dichloro-methane/acetonitrile. The chromium center is coordinated by two N atoms of the chelating diimine ligand, two chloride ions in a trans configuration with respect to each other, and by two N atoms of two acetonitrile mol-ecules in a distorted octa-hedral geometry.
[N,N-Bis(diphenylphosphino)isopropylamine]dibromidonickel(II)
The title compound, [NiBr2(C27H27NP2)], was synthesized by the reaction of NiBr2(dme) (dme is 1,2-dimethoxy-ethane) with N,N-bis-(diphenyl-phosphino)isopropyl-amine in methanol/tetra-hydro-furan. The nickel(II) center is coordinated by two P atoms of the chelating PNP ligand, PH2PN(iPr)PPH2, and two bromide ions in a distorted square-planar geometry.
[1-Dimethylsilyl-2-phenyl-3-(η5-tetramethylcyclopentadienyl) prop-1-en-1-ylκC1](n5-pentamethylcyclopentadienyl)- titanium(III)
The title compound, [Ti(C10H15)(C20H 26Si)], was obtained from the reaction of [Ti{5: 1-C5Me4(CH2)}(5-C 5Me5)] with the alkynylsilane PhC2SiMe 2H. The complex crystallizes with two independent mol-ecules in the asymmetric unit, which differ in the conformation of the propenyl unit, resulting in their having opposite helicity. No inter-molecular inter-actions or inter-actions involving the Si- H bond are present. The observed geometrical parameters are unexceptional compared to known structures of the same type.
Crystal structures of tribromo(η5-3,6-di-tert-butyl-9,10,11- trimethyl-bicyclo(6.3.0)undeca-4-en-8,10-dienyl)titanium(IV), Ti(C 22H35)Br3, and tribromo(η5-4,5- dibromo-3,6-di-tert-butyl-9,10,11-trimethyl-bicyclo(6.3.0)undeca-8,10-dienyl) titanium(IV), Ti(C22H35Br2)Br3
C22H35Br3Ti, triclinic, P1̄ (no. 2), a = 9.621(2) Å, b = 11.796(2) Å, c = 12.232(2) Å, α = 102.23(3)°, β = 97.71(3)°, γ = 112.32(3)°, V = 1219.2 Å3, Z = 2, Rgt(F) = 0.058, wRobs(F 2) = 0.134, T = 293 K. C22H35Br5Ti, monoclinic, P121/n1 (no. 14), a = 7.474(1) Å, b = 18.458(4) Å, c = 20.171(4) Å, β = 100.28(3)°, V= 2738.0 Å3, Z = 4, Rgt(F) = 0.054, wRobs(F 2) = 0.119, T = 293 K. © by Oldenbourg Wissenchaftsverlag.
Crystal structure of rac-[1, 2-ethylene-bis(η5-4, 5, 6, 7-tetrahydroindenyl)]1-hafna-4, 5-bis(trimethylsilyl)furan-3-one- tris(pentafluorophenyl)borane, (C20H24)Hf(Me 3SiC2SiMe3CO2)B(C6F 5)3
C47H42BF15HfO2Si2, monoclinic, P121/n1 (no. 14), a = 15.7496(4) Å = 20.4074(5) Å= 16.3115(5) Å, β = 96.313(2)°, V= 5210.9 Å3, Z = 4, Rgt(F) = 0.027, WRref(F 2) = 0.049, T= 200 K. © by Oldenbourg Wissenschaftsverlag.
Trans-Di-μ-acetato-[μ-N,N-bis-(diphenyl-phosphino)aniline] bis-[chlorido-molybdenum(II)](Mo - Mo)-dichloro-methane-tetra-hydro-furan (1/0.3/1.7)
The mol-ecular structure of the title compound, [Mo2(CH 3COO)2Cl2(C30H25NP 2)]·0.3CH2Cl2·1.7C 4H8O, features an Mo - Mo dumbbell bridged by two acetate groups which are trans to each other. Perpendicular to the plane spanned by the acetate groups, the Ph2PN(Ph)PPh2 ligand bridges both Mo atoms, having a P - N - P angle of 114.09 (19)°. In a trans position to the PNP ligand are two Cl atoms, one on each molybdenum centre. The Mo - Mo bond distance is 2.1161 (9) Å, within the range known for Mo - Mo quadruple bonds. The Mo complex is located on a crystallographic twofold rotation axis which runs through the N - C bond of the ligand. The site occupation factors of the disordered solvent molecules were fixed to 0.15 for dichloromethane and 0.85 for tetrahydrofuran. © 2009.
Crystal structure of 3,3-bis(tert-butyl-cyclopentadienyl)-bicyclo[3.1.0] hex-3-zircona-1(5)-ene-6-nickela-6,6-bis(triphenylphosphine), (C 9H13)2(ZrC4H4)Ni(C 18H15P)2
C58H60NiP2Zr, monoclinic, P12 1/n1 (no. 14), a = 12.378(3) Å = 10.353(2) Å, c = 38.031(8) Å, β = 95.74(3)°, V= 4849.2 Å, Z = 4, R gt(F) = 0.023, wRref(F2) = 0.054, T = 200 K. © by Oldenbourg Wissenschaftsverlag.
Crystal structure of η5-3,6-di-tert-butyl-4- (tris(pentafluorophenyl)boranyloxycarbonyl)-5-(η5- tetramethylcyclopentadienyl-methyl-9,10,11-trimethyl-bicyclo(6.3.0) undeca-4-en-8,10-dienyl)titanium(III) toluene hemisolvate, Ti(C 51H47BF15O2) · 0.5C 7H8
C54.50H51BF15O2Ti, triclinic, P1̄ (no. 2), a = 11.603(2) Å, b = 12.872(3) Å, c = 18.142(4) Å, α = 76.47(3)°, β = 77.99(3)°, γ = 69.13(3)°, V = 2438.2 Å5, Z = 2, Rgt(F) = 0.048, wRobs(F2) = 0.114, T = 200 K. © by Oldenbourg Wissenchaftsverlag.
Crystal structure of η5-1-(tris(pentafluorophenyl) boranylmethyl)-2,3,4,5-tetramethylcyclopentadienyl-η5, η1-3,6-di-tert-butyl-9,10,11-trimethyl-bicyclo(6.3.0) undeca-3-en-8,10-dienyl)titanium(IV),Ti(C50H48BF 15)
C50H48BF15Ti, monoclinic, P12 1/c1 (no. 14), a = 12.007(2) Å, b = 19.511(4) Å, c = 20.010(4) Å, β = 98.90(3)°, V= 4631.3 Å3, Z = 4, Rgt(F) = 0.052, wRref(F2) = 0.120, T = 200 K. © by Oldenbourg Wissenchaftsverlag.
Crystal structure of bis(η5-cyclopentadienyl)-pyrrolide- titanium(III), Ti(C10H15)2(C4H 4N)
C24H34NTi, orthorhombic, Pbcm (no. 57), a = 10.864(2) Å, b = 14.281(3) Å, c = 27.535(6) Å, V= 4272.0 Å3, Z = 8, Rgt(F) = 0.043, wRref(F 2) = 0.111, T= 200 K. © by Oldenbourg Wissenschaftsverlag,.