Issue 8, 1987
From the journal:

Journal of the Chemical Society, Chemical Communications

Structure and bonding of the lithium tetrahydroborate–tetramethylethylenediamine adduct (TMEDA·LiBH4)2, a centrosymmetric dimer containing doubly and triply bridging hydrogen atoms

David R. Armstrong,   William Clegg,   Howard M. Colquhoun,   J. Anthony Daniels,   Robert E. Mulvey,   Ian R. Stephenson  and  Kenneth Wade  

Abstract

The title compound, the first alkali metal tetrahydroborate complex to be structurally characterised, has been shown by an X-ray study to be dimeric in the crystal, with each µ2,η3-BH4 group bonding to two metal atoms through one µ2-hydrogen atom apiece and also through one µ3-hydrogen atom; MO calculations at the 6-31G level on unsolvated LiBH4 and the model adducts (H2O)n·LiBH4(n= 1 or 2) and their dimers, with η2- and η3-BH4 geometries, show how their stabilities reflect the number of Li [dash dash, graph caption] H contacts, whilst illustrating the inadequacies of LiHB and Li2HB 3- and 4-centre bond schemes for such compounds.

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Article information

DOI
https://doi.org/10.1039/C39870000630
Article type
Paper

J. Chem. Soc., Chem. Commun., 1987, 630-632

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Structure and bonding of the lithium tetrahydroborate–tetramethylethylenediamine adduct (TMEDA·LiBH4)2, a centrosymmetric dimer containing doubly and triply bridging hydrogen atoms

D. R. Armstrong, W. Clegg, H. M. Colquhoun, J. A. Daniels, R. E. Mulvey, I. R. Stephenson and K. Wade, J. Chem. Soc., Chem. Commun., 1987, 630 DOI: 10.1039/C39870000630

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