title: cis-1,3,5-Triaminocyclohexane as a facially capping ligand for ruthenium(II).
abstract: Reaction of cis-[RuCl2(DMSO-S)3(DMSO-O)] with cis-1,3,5-triaminocyclohexane (tach) results in the formation of [RuCl(tach)(DMSO-S)2]Cl, a valuable precursor for a wide range of other tach-containing Ru complexes. Reaction of [RuCl(tach)(DMSO-S)2]Cl with the chelating nitrogen-based ligands (N-N = bipyridine, phenanthroline, and ethylenediamine) affords [Ru(N-N)(DMSO-S)2(tach)][Cl]2. A similar reaction between [RuCl(tach)(DMSO-S)]Cl with the chelating phosphorus-based ligands (P-P = dppm, dppe, dppp, dppb, dppv, and dppben) leads to the formation of [RuCl(P-P)(tach)]Cl. The structures of 10 examples of the tach-containing complexes have been determined by single crystal X-ray diffraction. An examination of the structural metrics obtained from these studies indicates that the tach ligand is a strong sigma donor. In addition, the presence of the NH2 groups in the tach ligand allow for participation in hydrogen bonding further modulating the coordinative properties of the ligand.
authors.affiliation: Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK.
authors.forename: Aimee J
authors.initials: AJ
authors.lastname: Gamble
authors.forename: Jason M
authors.initials: JM
authors.lastname: Lynam
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Thatcher
authors.forename: Paul H
authors.initials: PH
authors.lastname: Walton
authors.forename: Adrian C
authors.initials: AC
authors.lastname: Whitwood
mesh_terms: D002614:Chelating Agents / Q000138:chemical synthesis / Q000737:chemistry; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D018360:Crystallography, X-Ray; D003514:Cyclohexylamines / Q000138:chemical synthesis / Q000737:chemistry*; D006860:Hydrogen Bonding; D008024:Ligands; D008958:Models, Molecular; D012428:Ruthenium / Q000737:chemistry*
chemical_list: C421444:1,3,5-triaminocyclohexane; D002614:Chelating Agents; D056831:Coordination Complexes; D003514:Cyclohexylamines; D008024:Ligands; D012428:Ruthenium