Date Published: March 01, 2012
Publisher: International Union of Crystallography
Author(s): Jun-Wen Wang, Yue Guo, Gui-Ying Dong, Yu Gu, Di-Si Bai.
In the title compound, [Hg(C42H38N4O2)](PF6)2·2CH3CN, the HgII cation lies on a twofold axis which is also the internal symmetry element of the complete cationic complex. The HgII cation is coordinated by two symmetry-related C(carbene) atoms [Hg—C = 2.058 (9) Å] in a nearly linear geometry, with a C—Hg—C angle of 175.8 (5)°. There are weak intermolecular C—H⋯F interactions in the crystal packing between an F atom of a hexafluoridophosphate anion and a –CH2– group of the bis-N-heterocyclic carbene ligand.
For related bis-N-heterocyclic carbene structures, see: Arduengo et al. (1991 ▶); Nielsen et al. (2006 ▶); Guo & Dong (2009 ▶).