Six boron compounds have been synthesized through the combination of phenylboronic acid and various Salen (N,N′-ethylenebis(2-hydroxy)benzylidenimine) ligands. They contain seven- and eight-membered heterocycles with a bridging oxygen and have the formula: L[(PhB)2(μ-O)] (L= Acmen (1), Salen(tBu) (2), Sal(2-OH)pen (3), Salpen(tBu) (4), Acpen (5) and L[B2(μ-O)(O2BPh)] (L = Acen (6), Salmen (7)). Compounds 6 and 7 are interesting trinuclear boron derivatives with two four-coordinate and one three-coordinate boron atoms. The compounds have been characterized by MP, MS, IR, EA and 1H- and 11B-NMR, by 11B-MAS for 6 and 7 and by X-ray crystallography for 2, 4-7.
|Number of pages||8|
|Journal||Journal of Organometallic Chemistry|
|State||Published - Jul 15 2002|
Bibliographical noteFunding Information:
This work was supported by the National Science Foundation NSF-CAREER award (CHE 9816155) and CONACYT-MEXICO. NMR instruments used in this research were obtained with funds from the crif program of the National Science Foundation (CHE 997841), from the Research Challenge Trust Fund of the University of Kentucky and the mri program of the NSF (DMR-9977388).
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry
- Materials Chemistry