Journal
JOURNAL OF MOLECULAR STRUCTURE
Volume 826, Issue 2-3, Pages 104-112Publisher
ELSEVIER
DOI: 10.1016/j.molstruc.2006.04.037
Keywords
Zn(II) complexes; photoluminescence; alkylation; time-dependent density functional theory (TDDFT); oligomerization; benzimidazole derivatives
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Two neutral and dimeric Zn(II) complexes [Zn-2(epbm)(4)] (1) and [Zn-2(bpbm)(4)] (2) (Hepbm = 3-ethyl-2-(2-hydroxyphenyl)-3H-benzimidazole, Hbpbm = 3-n-butyl-2-(2-hydroxyphenyl)-3H-benzimidazole) have been prepared and characterized by X-ray crystallography and photoluminescent studies. Time-dependent density functional theory (TDDFT) energy level calculation and molecular orbital calculation show their absorption and luminescence properties are ligand-centered. The spectral shifts caused by the effects of deprotonation/complextion, and substitution/dimerization have been also discussed. Both 1 and 2 show blue emission nature. (c) 2006 Elsevier B.V. All rights reserved.
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