4 results
Search Results
Now showing 1 - 4 of 4
- Item[1-Dimethylsilyl-2-phenyl-3-(η5-tetramethylcyclopentadienyl) prop-1-en-1-ylκC1](n5-pentamethylcyclopentadienyl)- titanium(III)(Chester : International Union of Crystallography, 2009) Lamač, M.; Spannenberg, A.; Arndt, P.; Rosenthal, U.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.
- Item(tert-Butylimido)bis(η5-cyclopenta-dienyl) pyridinezirconium(IV)(Chester : International Union of Crystallography, 2010) Kaleta, K.; Arndt, P.; Spannenberg, A.; Rosenthal, U.The title compound, [Zr(C5H5)2(C 4H9N)(C5H5N)], was obtained from the reaction of (C5H5)2Zr(py)(η2- Me3SiC2SiMe3) (py is pyridine) and tBuN=C=NtBu alongside the formation of (C 5H5)2Zr(CNtBu)(2-Me 3SiC2SiMe3). The zirconium atom is coordinated in a distorted tetrahedral geometry by two cyclopentadienyl ligands, a pyridine ligand, and a tertbutylimido ligand via a Zr=N double bond. The tertbutyl group is disordered over two positions in a 0.634 (5):0.366 (5) ratio.
- ItemCrystal structure of [1,2-ethylene-1,1′ -bis(η5-tetrahydroindenyl)]-chloro- [η2-N,C-3,4,5,6-tetrafluoropyridyI]zirconium(IV), ZrCl(C5F4N)(C20H24)(München : R. Oldenbourg Verlag GmbH, 2005) Spannenberg, A.; Jäger-Fiedler, U.; Arndt, P.; Rosenthal, U.C25H24Clf4NZr, monoclinic, P121/n1 (no. 14), a = 9.903(2) Å, b= 11.279(2) Å, c = 20.231(4) Å, β = 92.43(3)°, V = 2257.7 Å3, Z = 4, Rgt(F) = 0.035, wRobs(F2) = 0.076, T = 200 K.
- ItemCrystal structure of bis(η5-cyclopentadienyl)-pyrrolide- titanium(III), Ti(C10H15)2(C4H 4N)(Berlin : de Gruyter, 2007) Spannenberg, A.; Burlakov, V.V.; Arndt, P.; Klahn, M.; Rosenthal, U.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,.