Synthesis and characterization of ionic Ru(III) complexes containing dimethylsulfoxide and dinitrogen heterocyclic ligands
摘要:
Several new Ru(III) DMSO compounds including [PPh4]trans-[Ru(DMSO)(2)Cl-4], [PPh4]trans-[Ru(DMSO)(pyrazine)Cl-4] (2), [PPh4]trans-[Ru(DMSO)(4,4'-bipyridine)Cl-4] and [PPh4]trans-[Ru(DMSO)(pyrimidine)Cl-4] were reported and characterized. The crystal structure of 2 and its Na+ analogue were determined by X-ray diffraction methods. The PPh4+ complex 2 is a discrete ionic compound, while the compound [Na]trans-[Ru(DMSO)(pyrazine)Cl-4]center dot DMSO (3) crystallized with a molecule of DMSO. The environment around the Na atom is a distorted octahedron with short contacts with three chloro ligands, two O atoms from the bonded and unbonded DMSO molecules, and the unbonded N atom of the pyrazine ligand. The Na atoms form bridges between the complexed anions in 3 resulting in the formation of infinite chains or ribbons parallel to the b axis. The chains are held together by van der Waals interactions. (c) 2007 Elsevier Ltd. All rights reserved.
Synthesis and characterization of ionic Ru(III) complexes containing dimethylsulfoxide and dinitrogen heterocyclic ligands
作者:Craig M. Anderson、Amnon Herman、Fernande D. Rochon
DOI:10.1016/j.poly.2007.03.041
日期:2007.8
Several new Ru(III) DMSO compounds including [PPh4]trans-[Ru(DMSO)(2)Cl-4], [PPh4]trans-[Ru(DMSO)(pyrazine)Cl-4] (2), [PPh4]trans-[Ru(DMSO)(4,4'-bipyridine)Cl-4] and [PPh4]trans-[Ru(DMSO)(pyrimidine)Cl-4] were reported and characterized. The crystal structure of 2 and its Na+ analogue were determined by X-ray diffraction methods. The PPh4+ complex 2 is a discrete ionic compound, while the compound [Na]trans-[Ru(DMSO)(pyrazine)Cl-4]center dot DMSO (3) crystallized with a molecule of DMSO. The environment around the Na atom is a distorted octahedron with short contacts with three chloro ligands, two O atoms from the bonded and unbonded DMSO molecules, and the unbonded N atom of the pyrazine ligand. The Na atoms form bridges between the complexed anions in 3 resulting in the formation of infinite chains or ribbons parallel to the b axis. The chains are held together by van der Waals interactions. (c) 2007 Elsevier Ltd. All rights reserved.