SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF THE TRINUCLEAR BARIUM DISILOXANES [BA3(OSIPH2OSIPH2O)3(TETRAGLYME)2] AND [BA3(OSIPH2OSIPH2O)3(HMPA)5(H2O)], CONTAINING AN UNUSUAL BA3O7 CORE [TETRAGLYME = ME(OCH2CH2)4OME, HMPA = (ME2N)3P=O]

J A DARR, S R DRAKE, D J WILLIAMS, A M Z SLAWIN

Research output: Contribution to journalArticlepeer-review

Abstract

Barium granules react with diphenylsilanediol in a mixed ammonia-toluene solution at -40-degrees-C to yield [Ba(OSiPh2OSiPh2O)(H2O)(NH3)0.33] 1, addition of either tetraglyme or hexamethylphosphoramide (hmpa) produces [Ba3(OSiPh2OSiPh2O)3(tetraglyme)2] 2 and [Ba3(OSiPh2OSiPh2O)3(hmpa)5(H2O)] 3, respectively; complexes 2 and 3 are the first X-ray structurally characterised barium disiloxanes and contain an unusual trinuclear array of Ba cations incorporating an identical Ba3O7 core.

Original languageEnglish
Pages (from-to)866-868
Number of pages3
JournalJournal of the Chemical Society, Chemical Communications
Issue number10
Publication statusPublished - 21 May 1993

Keywords

  • CRYSTAL

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