Dynamic n.m.r. studies have shown that the barrier to exchange of the bridging and terminal hydride ligands in [Co(terpy)(H2BH2)](terpy = 2,2′:6′,2″-terpyridyl) is 11.1 (±0.1) kcal mol–1, the highest value measured to date for a bidentate H2BH2– complex. Solutions of the complex are diamagnetic within the limits of the n.m.r. method of measuring susceptibilities.
No takes yet. Share an insight, caveat, or question.
Wink et al. (1984) studied this question.