Huang K, Qin DB. Acta Crystallogr Sect E Struct Rep Online. 2011 Aug 1;67(Pt 8):m1116. doi: 10.1107/S1600536811026675. Epub 2011 Jul 23.
The title silver N-heterocyclic carbene compound, [Ag(C(17)H(16)N(2))(2)]PF(6), crystallizes as a mononuclear salt. The two imidazole rings, which are almost coplanar [maximum deviation from the least squares plane of 0.05 (2) Å], are linked by the Ag atom with a C-Ag-C angle of 178.60 (9)°. In the crystal, C-H⋯F hydrogen bonds, weak π-π inter-actions [centroid-centroid distances = 3.921 (1) and 3.813 (3) Å] and C-H⋯π inter-actions lead to a supermolecular structure.
Haque RA, Salman AW, Hemamalini M, Fun HK. Acta Crystallogr Sect E Struct Rep Online. 2011 Sep 1;67(Pt 9):m1242-3. doi: 10.1107/S1600536811032235. Epub 2011 Aug 17.
The asymmetric unit of the title complex, [Hg(C(11)H(12)N(2))(2)](PF(6))(2), consists of one bis-(1-benzyl-3-methyl-imidazolium)mercury(II) cation, one half of the cation and an additional Hg(II) atom, which lies on an inversion centre, and three hexa-fluorido-phosphate anions. The Hg(II) atoms exist in a linear coordination geometry [C-Hg-C = 178.9 (2) and 180°] formed by two carbene C atoms from the imidazole rings. In the crystal, the cations and anions are connected via C-H⋯F hydrogen bonds, forming a three-dimensional network.
3.Bis(2,2'-bipyridine)[1,9-bis(diphenylphos-phanyl)-1,2,3,4,6,7,8,9-octahydropyrim-ido[1,2-a]pyrimidin-5-ium]ruthenium(II) hexa-fluorido-phosphate dibromide di-chloro-methane disolvate monohydrate.
Shang C1, Vendier L1, Sutra P1, Igau A1. Acta Crystallogr Sect E Struct Rep Online. 2013 Nov 6;69(Pt 12):m640-1. doi: 10.1107/S1600536813029462. eCollection 2013.
In the cation of the title complex, [Ru(C31H32N3P2)(C10H8N2)2](PF6)(Br)2·2CH2Cl2·H2O, the ruthenium ion is coordinated in a distorted octa-hedral geometry by two 2,2'-bi-pyridine (bpy) ligands and a chelating cationic N-di-phenyl-phosphino-1,3,4,6,7,8-hexa-hydro-2-pyrimido[1,2-a]pyrimidine [(PPh2)2-hpp] ligand. The tricationic charge of the complex is balanced by two bromide and one hexa-fluorido-phosphate counter-anions. The compound crystallized with two mol-ecules of di-chloro-methane (one of which is equally disordered about a Cl atom) and a water mol-ecule. In the crystal, one of the Br anions bridges two water mol-ecules via O-H⋯Br hydrogen bonds, forming a centrosymmetric diamond-shaped R (4) 2(8) motif. The cation and anions and the solvent mol-ecules are linked via C-H⋯F, C-H⋯Br, C-H⋯Cl and C-H⋯O hydrogen bonds, forming a three-dimensional network.
4.[Bis-(2-pyrid-yl-κN)amine]chlorido(η-hexa-methyl-benzene)-ruthenium(II) hexa-fluorido-phosphate dichloro-methane solvate.
Gupta G, Therrien B, Kim J. Acta Crystallogr Sect E Struct Rep Online. 2011 May 1;67(Pt 5):m548. doi: 10.1107/S1600536811011640. Epub 2011 Apr 7.
In the title half-sandwich complex, [RuCl(η(6)-C(12)H(18))(C(10)H(9)N(3))]PF(6)·CH(2)Cl(2), the ruthenium(II) ion is four-coordinated by a chloro, a hexa-methyl-benzene and a bidentate N,N'-chelating di(pyridin-2-yl)amine ligand. In the crystal, the amino N-H group forms a hydrogen bond with the chloro ligand of a neighbouring complex, thus forming chains along the b axis. Weak inter-molecular C-H⋯F and C-H⋯ Cl contacts are also observed.