New Heterocycle-Based Organic Molecule with Two-Photon Induced Blue Fluorescent Emission

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doi:10.1071/CH05179

New Heterocycle-Based Organic Molecule with Two-Photon Induced Blue Fluorescent Emission

Pin Shao ^A, Zhen Li ^A, Jingui Qin ^A ^C, Hongmei Gong ^B, Sha Ding ^B, Ququan Wang ^B ^C

^A Department of Chemistry, Wuhan University, Wuhan 430072, China.
^B Department of Physics, Wuhan University, Wuhan 430072, China.
^C Corresponding authors. Email: jgqin@whu.edu.cn; qqwang@whu.edu.cn





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Australian Journal of Chemistry 59(1) 49–52 http://dx.doi.org/10.1071/CH05179
Submitted: 27 July 2005 Accepted: 12 December 2005 Published online: 31 January 2006

Abstract

A new heterocycle-based quadrupolar molecule containing 2,5-diphenyl-1,3,4-oxadiazole as the π-centre and two carbazoles as end units has been synthesized. It exhibits two-photon induced blue emission, and its two-photon absorption cross section in the femtosecond region is measured to be 239 × 10^-50 cm⁴ s photon^-1 at a wavelength of 788 nm.