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Synthesis, structures and luminescent behaviour of tridentate salicylaldiminato-type borate complexes

Christou, Victor; Watkins, Scott E.; McCann, Ruth; Redshaw, Carl; Elsegood, Mark R.J.

Authors

Victor Christou

Scott E. Watkins

Ruth McCann

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Professor Carl Redshaw C.Redshaw@hull.ac.uk
Professor of Inorganic Materials Chemistry and REF Lead for Chemistry

Mark R.J. Elsegood



Abstract

Treatment of the ligands 3,5-tBu2-2-(OH)C6H2CHNR [R = 2-(CO2H)C6H4 (1a) and 2-(CO2H)C10H6 (1b)] with trimethylborate, B(OMe)3, in toluene yields, after work-up, the yellow crystalline complexes {[3,5-tBu2-2-(O)C6H2CHNR]B(OMe)} [R = 2-(CO2)C6H4 (2a) and 2-(CO2)C10H6 (2b)], respectively. Further treatment of these complexes with trifluoromethanesulfonic (triflic) acid, CF3SO3H, followed by recrystallisation from tetrahydrofuran (thf) afforded the triflate salts [{3,5-tBu2-2-(O)C6H2CHNR}B(thf)][CF3SO3] [R = 2-(CO2)C6H4 (3a) and 2-(CO2)C10H6 (3b)]. An electroluminescent device was constructed using 2a, which produced orange-green light with broad emission spectra (maximum brightness of 5 cd/m2 being observed at 13 V). Compounds 1a and 2b·2MeCN have been characterised by single crystal X-ray structure determinations.

Citation

Christou, V., Watkins, S. E., McCann, R., Redshaw, C., & Elsegood, M. R. (2010). Synthesis, structures and luminescent behaviour of tridentate salicylaldiminato-type borate complexes. Inorganica Chimica Acta, 363(6), 1173-1178. https://doi.org/10.1016/j.ica.2009.11.006

Journal Article Type Article
Acceptance Date Nov 8, 2009
Online Publication Date Nov 16, 2009
Publication Date Apr 5, 2010
Deposit Date Jun 8, 2022
Journal Inorganica Chimica Acta
Print ISSN 0020-1693
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 363
Issue 6
Pages 1173-1178
DOI https://doi.org/10.1016/j.ica.2009.11.006
Public URL https://hull-repository.worktribe.com/output/3622493