Magnetic double-resonance studies of platinum-195 chemical shifts in organoplatinum compounds

Abstract

Platinum-195 chemical sifts and coupling constants obtained by ¹H-{³¹P} and ¹H-{¹⁹⁵Pt} double resonance are reported for 78 platinum compounds, of which most have direct platinum–carbon bonds. Empirical trends are noted and where possible assessed in terms of current theories. Electronic excitation energy, interbond angle, and substituent bulk and/or polarizability all appear to make significant contributions to the ¹⁹⁵Pt nuclear shielding.