Experimental and quantum-chemical studies of 15N NMR coordination shifts in palladium and platinum chloride complexes with pyridine, 2,2'-bipyridine and 1,10-phenanthroline.
A series of Pd and Pt chloride complexes with pyridine (py), 2,2'-bipyridine (bpy) and 1,10-phenanthroline (phen), of general formulae trans-/cis-[M(py)2Cl2], [M(py)4]Cl2, trans-/cis-[M(py)2Cl4], [M(bpy)Cl2], [M(bpy)Cl4], [M(phen)Cl2], [M(phen)Cl4], where M = Pd, Pt, was studied by 1H, 195Pt, and 15N NMR. The 90-140 ppm low-frequency 15N coordination shifts are discussed in terms of such structural features of the complexes as the type of platinide metal, oxidation state, coordination sphere geometry and the type of ligand. The results of quantum-chemical NMR calculations were compared with the experimental 15N coordination shifts, well reproducing their magnitude and correlation with the molecular structure.
Pazderski
Leszek
L
Faculty of Chemistry, Nicholas Copernicus University, Gagarina 7, PL-87100, Toruń, Poland. leszekp@chem.uni.torun.pl
Szłyk
Edward
E
Sitkowski
Jerzy
J
Kamieński
Bohdan
B
Kozerski
Lech
L
Tousek
Jaromír
J
Marek
Radek
R
D015082:2,2'-Dipyridyl / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D009587:Nitrogen Isotopes; D010165:Palladium / Q000737:chemistry*; D010618:Phenanthrolines / Q000737:chemistry*; D017671:Platinum Compounds / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*
D009587:Nitrogen Isotopes; D010618:Phenanthrolines; D017671:Platinum Compounds; D011725:Pyridines; C030173:platinum chloride; D015082:2,2'-Dipyridyl; D010165:Palladium; C023666:pyridine; C025205:1,10-phenanthroline