Observation of bridging and terminal metal hydrides by solid-state deuterium NMR spectroscopy: application to bis(cyclopentadienyl)zirconium dideuteride

Abstract

The solid-state deuterium NMR spectrum of [(η5-C5H5)2Zr2H2x has been measured at 46 and 61 MHz. Two deuterium sites were detected: a Zr-2H terminal bond and a Zr-2H-Zr bridging bond. The values found for the deuterium quadrupole coupling constant for the terminal and bridging sites are 46.7 (5) and 32.7 (20) kHz, respectively. A discussion is presented regarding assignment of deuterium quadrupole coupling constants to terminal or bridging metal hydride sites. © 1987, American Chemical Society. All rights reserved.