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Lookup NU author(s): Dr Keith Izod, James Watson, Dr Ross Harrington, Professor William Clegg
This is the authors' accepted manuscript of an article that has been published in its final definitive form by Royal Society of Chemistry, 2021.
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The reaction between two equivalents of {(Me3Si)2CH}(Ph)PH(BH3) (1) and Bu2Mg, followed by two equivalents of BH3·SMe2, gives the corresponding phosphido-bis(borane) complex, which may be crystal- lised as two distinct chemical species: the complex [{(Me3Si)2CH}(Ph)P(BH3)2]2Mg(THF)4·THF (2a), and two different THF solvates (1 : 1 and 1 : 2) of the solvent-separated ion triples [{(Me3Si)2CH}(Ph)P(BH3)2]2[Mg (THF)6]·THF (2b) and [{(Me3Si)2CH}(Ph)P(BH3)2]2[Mg(THF)6]·2THF (2c). Similar reactions between two equivalents of 1 and either (4-tBuC6H4CH2)2Ca(THF)4 or [(Me3Si)2CH]2Sr(THF)2, followed by two equiva- lents of BH3·SMe2, give the heavier alkali metal complexes [{(Me3Si)2CH}(Ph)P(BH3)2]2M(THF)4 [M = Ca (3), Sr (4)]. Surprisingly, compounds 2a, 3 and 4 adopt almost identical structures in the solid state, which differ only in the geometrical arrangement of the phosphido-bis(borane) ligands and the hapticity of the borane groups.
Author(s): Izod K, Watson JM, Harrington RW, Clegg W
Publication type: Article
Publication status: Published
Journal: Dalton Transactions
Year: 2021
Volume: 50
Issue: 3
Pages: 1019-1024
Print publication date: 21/01/2021
Online publication date: 23/12/2020
Acceptance date: 14/12/2020
Date deposited: 27/01/2021
ISSN (print): 1477-9226
ISSN (electronic): 1477-9234
Publisher: Royal Society of Chemistry
URL: https://doi.org/10.1039/d0dt03895d
DOI: 10.1039/d0dt03895d
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