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An Improved Method for the Synthesis of [closo-B12(OH)12]-2

An Improved Method for the Synthesis of [closo-B12(OH)12]-2

Michael J Bayer, M Frederick Hawthorne

Inorg Chem. 2004 Mar 22;43(6):2018-20.

PMID: 15018524

Abstract:

The dicesium salt of the icosahedral borane anion dodecahydroxy-closo-dodecaborate(2-), closo-Cs(2)B(12)(OH)(12), Cs(2)4, was prepared using an improved synthetic pathway. Heating cesium dodecahydro-closo-dodecaborate, closo-Cs(2)B(12)H(12), Cs(2)1, with 30% hydrogen peroxide added in successive increments at 105-110 degrees C provided Cs(2)4 in 95% yield. Reaction progress was monitored using (1)H-decoupled (11)B NMR while (17)O NMR provides the most reliable way to detect the presence of peroxides in the reaction solution. The reaction may be safely increased in scale to afford Cs(2)4 in multigram quantities.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP12589263	Cesium dodecahydroxydodecaborate		12589-26-3	Price

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