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Benzyl Ether-Substituted Phosphido-Borane Complexes of the Alkali Metals

Lookup NU author(s): Dr Keith Izod, James Watson, Emeritus Professor Bill Clegg, Dr Ross Harrington

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Abstract

Reduction of {(Me3Si)2CH}PCl(C6H4-2-CH2OMe) withLiAlH4, followed by reaction with BH3 center dot SMe2, gives the phosphaneborane {(Me3Si)2CH}PH(BH3)(C6H4-2-CH2OMe) (2) in good yield. Compound 2 undergoes rapid deprotonation on treatment with nBuLi, PhCH2Na or PhCH2K to give the corresponding alkali metal phosphidoborane complexes [[{(Me3Si)2CH}P(BH3)(C6H4-2-CH2OMe)]ML]2 [ML = Li(THF) (3), Na(tmeda) (4), K(pmdeta) (5)] after crystallization in the presence of the respective co-ligand L. The exact binding mode of the phosphidoborane ligand depends on the nature of the metal center in each case. However, all three alkali metal complexes crystallize as discrete dimers exhibiting MP, MO and M...BH3 contacts.


Publication metadata

Author(s): Izod K, Watson JM, Clegg W, Harrington RW

Publication type: Article

Publication status: Published

Journal: European Journal of Inorganic Chemistry

Year: 2012

Issue: 10

Pages: 1696-1701

Print publication date: 21/02/2012

ISSN (print): 1434-1948

ISSN (electronic): 1099-0682

Publisher: Wiley - V C H Verlag GmbH & Co. KGaA

URL: http://dx.doi.org/10.1002/ejic.201101367

DOI: 10.1002/ejic.201101367


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