Bis{1-[2-(diphenyl-phosphan-yl)eth-yl]-3-ethyl-imidazol-2-yl-idene}nickel(II) diiodide acetonitrile disolvate.
The mol-ecular structure of the title compound, [Ni(C(19)H(21)N(2)P)(2)]I(2)·2CH(3)CN, shows two six-membered N-heterocyclic carbene/phosphane chelate rings that form a nearly square-planar coordination geometry around the Ni(II) atom, which lies 0.190 (1) Å above the C(2)P(2) plane. The sum of the bond angles at the Ni(II) atom is 358.68 (6)°, with C-Ni-P bite angles of 82.89 (5) and 84.08 (6)°. The two carbene rings make a dihedral angle of 52.65 (8)°.
Department Chemie, Fakultät für Naturwissenschaften, Universität Paderborn, Warburgerstrasse 100, D-33098 Paderborn,  Germany.
Aziza
A
Ahmida
Domenica
D
Withake
Ulrich
U
Flörke
Hans
H
Egold
Gerald
G
Henkel