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Synthesis and structural characterization of bis(2-oxoimidazolyl)hydroborato complexes: a new class of bidentate
Ahmed Al-Harbi1, Yi Rong, Gerard Parkin
1Department of Chemistry, Columbia University , New York, New York 10027, United States.
Abstract:
A new class of bidentate ligands that feature oxygen donors, namely, the bis(2-oxo-1-tert-butylimidazolyl)hydroborato and bis(2-oxo-1-methylbenzimidazolyl)hydroborato ligands, [Bo(Bu(t))] and [Bo(MeBenz)], have been synthesized via the reactions of MBH4 with 2 equiv of the respective 2-imidazolone. Chelation of [Bo(Bu(t))] and [Bo(MeBenz)] to a metal center results in a flexible eight-membered ring that is capable of adopting a "boatlike" conformation that allows for secondary M···H-B interactions.
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