摘要:
Au(III) and Pd(II) chloride complexes with 2-benzylpyridine (2bzpy) - [Au(2bzpy)Cl-3] and trans-[Pd(2bzpy)(2)Cl-2], as well as Au(III) chloride organometallics with monoanionic form of 2bzpy, deprotonated in the benzyl side group at the ortho-carbon C(2') (2bzpy*) - [Au(2bzpy*)Cl-2], were studied by H-1, C-13 and N-15 NMR. H-1, C-13 and N-15 coordination shifts (i.e. differences of chemical shifts for the same atom in the complex and ligand molecules) were discussed in relation to the molecular structures and the coordination modes, as well as to the factors influencing nuclear shielding. Analogous NMR measurements were performed for the new (2bzpyH)[AuCl4] salt, studied also by single crystal X-ray diffraction. (C) 2012 Elsevier B.V. All rights reserved.