BIIMIDAZOL-2-YL-BF2 COMPLEXES

Citation
Tw. Ross et al., BIIMIDAZOL-2-YL-BF2 COMPLEXES, Heteroatom chemistry, 4(6), 1993, pp. 609-612
Citations number
17
Categorie Soggetti
Chemistry
Journal title
ISSN journal
10427163
Volume
4
Issue
6
Year of publication
1993
Pages
609 - 612
Database
ISI
SICI code
1042-7163(1993)4:6<609:BC>2.0.ZU;2-M
Abstract
Nonfluorescent 4,4',5,5'-tetramethyl- and 4,5,4',5'-bistetramethylene biimidazol-2-yls 5 and 6 combined with boron trifluoride to give the t etramethyl and bis-tetramethylenebiimidazol-2-yl-BF2 complexes 9 and 1 0 isolated as strongly fluorescent BF3 salts, lambda(f) (dichlorometha ne): 377 nm PHI 0.93 and 386 nm PHI 0.90. Similarly, fluorescent biben zimidazol-2-yl 7, lambda(f) (ethanol), 370 nm PHI 0.14, gave a BF2 com plex 11 isolated as a BF3 salt lambda(f) (ethanol), 417 nm PHI 0.68.