RESUMO
The title compound, [Ti(2)(CF(3)O(3)S)(4)(C(14)H(15)NO(2)S)(2)].2CH(2)Cl(2), consists of unique centrosymmetric dimers, with an eight-membered ring derived from the monomer subunits by formation of two Ti-(N,O)-S-O head-to-tail sequences around a crystallographic inversion centre, and two ordered dichloromethane solvate molecules. The Ti ion has distorted octahedral coordination, through the N atom and one O atom of one p-toluenesulfonamido group linked by an ethyl group to the bound cyclopentadiene moiety, one O atom from the other p-toluenesulfonamido group and two singly bound trifluoromethanesulfonates moieties which are coordinated in pseudo-cis positions. Both Ti-O(sulfonamido) bond lengths [2.149 (3) and 2.388 (3) A] are considered bonding interactions.
RESUMO
The title compound, [Ti(CF(3)O(3)S)(2)(C(14)H(15)NO(2)S)(C(4)H(8)O)], contains a unique ligand system in which the Ti ion is bound to the N and O atoms of a 2-p-toluenesulfonamide ligand, which is linked by an ethyl group to a coordinated cyclopentadiene moiety. The distorted octahedral geometry about the Ti ion is completed by two trifluoromethanesulfonate ligands and a tetrahydrofuran molecule. Comparison with related compounds shows that both the Ti-N and Ti-O bonds of the sulfonamide, although longer than normal values, indicate significant bonding interactions.
RESUMO
The title compound, 3,4,5,6-tetramethoxycyclohexane-1, 2-diyldioxybis(methyldiphenylphosphonium) diiodide, C(36)H(44)O(6)P(2)(2+).2I(-), was prepared from a New Zealand natural product, D-chiro-inositol, in order to develop new catalytic metal complexes. The inositol ring retains its usual chair conformation with only minor perturbations caused by the bound diphenylmethylphosphines. Crystal-packing forces are provided by C-H. I cation-anion interactions.
