期刊
JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 723, 期 -, 页码 122-128出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2012.09.018
关键词
Borane; Microwave chemistry; Solid-state reaction; N-15 NMR spectroscopy; X-ray diffraction
资金
- University of KwaZulu-Natal
- NRF
A quick and simple, solvent-free synthesis of nitrogen-basedboroles and borinines derived from 1,2-diaminobenzene and 1,8-diaminonaphthalene is reported and compared with the traditional synthetic method. Characterization by N-15 NMR spectroscopy of 12 compounds and single crystal X-Ray diffraction of 4 compounds provides supporting evidence for donation of electron density, from the N-atom to the vacant p(z) orbital of the B-atom. Furthermore comparison of the hitherto unreported crystal structure of 2-(4-Methylphenyl)-naptho[1,8-de][1,3,2]diazaborinine with similar compounds made in these laboratories reveals that solid-state packing and the dihedral angle between naphthyl and phenyl rings is determined by competing inter-and intra-molecular forces. (C) 2012 Elsevier B. V. All rights reserved.
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