Jump to main content
Jump to site search

Issue 5, 1983
Previous Article Next Article

Metallocene(III) tetrahydridoborates of the Group 3A elements and the X-ray structure of [Sc{η-C5H3(SiMe3)2}2(µ-H)2BH2]

Abstract

Complexes of a range of group 3A metals (Ln) of formula [Ln{η-C5H3(SiMe3)2}2(BH4)(thf)n](thf = tetrahydrofuran, n= 1 or, for Ln = Sc, n= 0) have either a (µ-H)2(for the smaller metals: Ln = Sc, Y, or Yb) or a (µ-H)3(Ln = La, Pr, Nd, or Sm) bridge, and only with the smallest of these (Sc) is the BH4 ligand non-fluxional (11B n.m.r.spectroscopy) at ambient temperature although rapid bridging hydrogen ⇌ terminal hydrogen exchange occurs at 100 °C; the X-ray crystal structure of this title Sc compound shows Sc–H 2.03 (4) and Sc…. B 2.52(3)Å and confirms the bidentate mode of BH4 bonding.

Back to tab navigation

Article information


J. Chem. Soc., Chem. Commun., 1983, 206-207
Article type
Paper

Metallocene(III) tetrahydridoborates of the Group 3A elements and the X-ray structure of [Sc{η-C5H3(SiMe3)2}2(µ-H)2BH2]

M. F. Lappert, A. Singh, J. L. Atwood and W. E. Hunter, J. Chem. Soc., Chem. Commun., 1983, 206
DOI: 10.1039/C39830000206

Search articles by author

Spotlight

Advertisements