Studies of platinum(II) complexes by heteronuclear magnetic double resonance

Abstract

¹ H–{¹⁹⁵Pt} heteronuclear double resonance experiments are shown to be valuable for the identification of species present in mixtures of platinum(II) complexes. The ¹⁹⁵Pt chemical shifts can be understood in terms of variations in electronic excitation energies when the size of the ligands remains approximately constant, but bulky ligand atoms produce large shifts to high field which then dominate. Coupling constants involving ¹⁹⁵Pt are also discussed.