title: 1H, 13C and 15N NMR coordination shifts in gold(III), cobalt(III), rhodium(III) chloride complexes with pyridine, 2,2'-bipyridine and 1,10-phenanthroline.
abstract: Au(III), Co(III) and Rh(III) chloride complexes with pyridine (py), 2,2'-bipyridine (bpy) and 1,10-phenanthroline (phen) of the general formulae [M1LCl3], trans-[M2L4Cl2]+, mer-[M2L3Cl3], [M1(LL)Cl2]+, cis-[M2(LL)2Cl2]+, where M1=Au; M2=Co, Rh; L=py; LL=bpy, phen, were studied by 1H--13C HMBC and 1H--15N HMQC/HSQC. The 1H, 13C and 15N coordination shifts (the latter from ca-78 to ca-107 ppm) are discussed in relation to the type of metal, electron configuration, coordination sphere geometry and the type of ligand. The 13C and 15N chemical shifts were also calculated by quantum-chemical NMR methods, which reproduced well the experimental tendencies concerning the coordination sphere geometry and the ligand type.
authors.affiliation: Faculty of Chemistry, Nicholas Copernicus University, Gagarina 7, PL-87100, Toruń, Poland. leszekp@chem.uni.torun.pl
authors.forename: Leszek
authors.initials: L
authors.lastname: Pazderski
authors.forename: Jaromír
authors.initials: J
authors.lastname: Tousek
authors.forename: Jerzy
authors.initials: J
authors.lastname: Sitkowski
authors.forename: Lech
authors.initials: L
authors.lastname: Kozerski
authors.forename: Radek
authors.initials: R
authors.lastname: Marek
authors.forename: Edward
authors.initials: E
authors.lastname: Szłyk
mesh_terms: D015082:2,2'-Dipyridyl / Q000737:chemistry*; D002247:Carbon Isotopes / Q000737:chemistry; D003035:Cobalt / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D006859:Hydrogen / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D009587:Nitrogen Isotopes / Q000737:chemistry; D050607:Organogold Compounds; D010618:Phenanthrolines / Q000737:chemistry; D012238:Rhodium / Q000737:chemistry*
chemical_list: D002247:Carbon Isotopes; D009587:Nitrogen Isotopes; D050607:Organogold Compounds; D010618:Phenanthrolines; D003035:Cobalt; D015082:2,2'-Dipyridyl; D006046:Gold; D006859:Hydrogen; D012238:Rhodium; C018021:cobaltous chloride; C025205:1,10-phenanthroline