1, 1/1, 2 Isomerisation in Lewis base adducts of B2cat2. Issue 16 (24th March 2015)

• Record Type: Journal Article
• Authors: Cade, I. A.; Chau, W. Y.; Vitorica-Yrezabal, I.; Ingleson, M. J.
• Is Part Of: Dalton transactions. Volume 44:Issue 16(2015)
• Page Start: 7506
• Page End: 7511
• Publication Date: 2015-03-24
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c5dt00645g
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : The unexpected 1, 1/1, 2 isomerisation of the diolate in B2 cat2 is observed on addition of Lewis bases. Abstract : Reaction of bis-catecholatodiborane and 1 or 2 equivalents of 1, 5-diazabicyclo[4.3.0]non-5-ene or 4-picoline yields Lewis acid–base adducts. Recrystallisation enabled identification of an unexpected isomerisation from the 1, 1-isomer to the 1, 2-isomer. This observation was probed computationally with significantly different dipole moments calculated for the two effectively isoenergetic isomeric forms.