metal-organic compounds
In the title compound, [RuCl2(C2H3N)(C27H31N3)]·0.5CH2Cl2, the RuII ion is six-coordinated in a distorted octahedral arrangement, with the two Cl atoms located in the apical positions, and the pyridine (py) N atom, the two imino N atoms and the acetonitrile N atom located in the basal plane. The dichloromethane solvent molecule lies on a twofold axis. The two equatorial Ru-Nimino distances are almost equal (mean 2.089 Å) and are substantially longer than the equatorial Ru-Npy bond [1.914 (4) Å]. It is observed that the Nimino-M-Npy bond angle for the five-membered chelate rings of pyridine-2,6-diimine complexes is inversely related to the magnitude of the M-Npy bond. The title structure is stabilized by intra- and intermolecular C-HCl hydrogen bonds. The intermolecular hydrogen bonds form an R66(24) ring and a chain of edge-fused rings running parallel to the [001] direction.
metal-organic compounds
The title complex, [RhBr(C8H12)(C21H8N2F10)], has a slightly distorted pseudo-square-planar geometry. The whole molecule has an approximate mirror symmetry, with the mirror plane passing through the mid-points of the two alkene bonds of the cycloocta-1,5-diene (COD) ligand. The average Rh—C(COD) distance is inversely related to the magnitude of the Rh—C(benzimidazole) distance in this type of compound. The molecules are stacked in columns running along the a axis. The crystal structure contains two types of intermolecular C—HF interactions, as well as two weak π–π stacking interactions.
metal-organic compounds
The title compound, [RuCl2(C25H29N5)(C18H15P)], a transfer hydrogenation catalyst, is supported by an N,N′,N′′-tridentate pyridine-bridged ligand and triphenylphosphine. The RuII centre is six-coordinated in a distorted octahedral arrangement, with the two Cl atoms located in the axial positions, and the pyridine (py) N atom, the two imino N atoms and the triphenylphosphine P atom located in the equatorial plane. The two equatorial Ru—Nimino distances (mean 2.093 Å) are substantially longer than the equatorial Ru—Npy bond [1.954 (4) Å]. It is observed that the Nimino—M—Npy bond angle for the five-membered chelate rings of 2,6-bis(imino)pyridine-based complexes is inversely related to the magnitude of the M—Npy bond. The title structure is stabilized by intra- and intermolecular C—HCl hydrogen bonds, as well as by intramolecular π–π stacking interactions between the aromatic rings belonging to the triphenylphosphine ligand and the dimethylaminophenyl fragment. The intermolecular hydrogen bonds form an R22(12) ring and a zigzag chain of fused centrosymmetric rings running parallel to the [100] direction.
metal-organic compounds
The title complex, [PdCl2(C21H26N2)(C18H15P)], shows slightly distorted square-planar coordination around the PdII metal centre. The Pd—C bond distance between the N-heterocyclic ligand and the metal atom is 2.028 (5) Å. The dihedral angle between the two trimethylphenyl ring planes is 36.9 (2)°.
metal-organic compounds
In the title compound, [RuCl2(C2H3N)(C27H31N3)]·CH2Cl2, the RuII ion is six-coordinated in a distorted octahedral arrangement, with the two Cl atoms located in the apical positions, and the pyridine (py) N atom, the two imino N atoms and the acetonitrile N atom located in the basal plane. The two equatorial Ru—Nimino distances are almost equal (mean 2.087 Å) and are substantially longer than the equatorial Ru—Npy bond [1.921 (4) Å]. It is observed that the Nimino—M—Npy angle for the five-membered chelate rings of pyridine-2,6-diimine complexes is inversely related to the magnitude of the M—Npy bond. The title structure is stabilized by intra- and intermolecular C—HCl hydrogen bonds, as well as by van der Waals interactions.