Synthesis, single crystal structure and photo-luminescent property of bipolar compounds containing 1,3,4-oxadiazole and carbazolyl units

✍ Scribed by Jie Han; Yong-Heng Wei

• Book ID: 104060074
• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 341 KB
• Volume: 968
• Category: Article
• ISSN: 0022-2860
• DOI: 10.1016/j.molstruc.2010.01.016

✦ Synopsis

Two bipolar molecules 1a and 1b, which incorporate both electron-transporting oxadiazole and holetransporting carbazolyl or N,N 0 -dimethylphenyl moieties within the conjugation system, were synthesized and characterized by 1 H NMR, 13 C NMR, elemental analysis and mass spectrometry. The molecular structure of compound 1a was further confirmed by single X-ray crystallography. The solutions of both compounds in CH 2 Cl 2 individually displayed two absorption bands with k max values at 376-378 nm and emitted with k max values at 478-479 nm and quantum yields of 0.61-0.63. The cyclic voltammograms results showed that the carbazole-containing compound 1a has better hole injection ability than the N,N 0 -dimethylphenyl end-capped 1b.