Lanthanide-induced shifts in nuclear magnetic resonance spectroscopy. Shifts to high field

Abstract

Tris-(2,2,6,6-tetramethylheptane-3,5-dionato)-praseodymium, [Pr(tmhd)₃], induces shifts in ¹H n.m.r. spectra which are of opposite sign to, and much larger than, those reported for [Eu(tmhd)₃].