Add time:09/05/2019         Source:sciencedirect.com

Treatment of [Nb(η-C5H5)2H3] with pentaborane(9) gives the novel arachno-metallaboranes [Nb(η-C5H5)2B4H9] (1) and [Nb(η-C5H5)2B3H8] (2). Compound 1 is the first reported base subrogated analogue of the neutral arachno-pentaborane(11) and has an apex to niobium hydrogen bridge. Compound 2, for which the X-ray crystal structure has been determined, is an analogue of the neutral arachno-tetraborane(10).

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