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Synfacts 2008(5): 0469-0469  
DOI: 10.1055/s-2008-1072536
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart · New York

Donor-Acceptor Complexes with High Quantum Yields and Large Stokes Shifts

Contributor(s): Timothy M. Swager, Jan M. Schnorr
Y. Zhou, Y. Xiao*, S. Chi, X. Qian*
Dalian University of Technology, The Chinese Academy of Sciences, Beijing and East China University of Science and Technology, Shanghai, P. R. of China
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Publication History

Publication Date:
23 April 2008 (online)

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Significance

The authors report the synthesis of the donor-acceptor systems 3 and 4 that exhibit strong solid and liquid fluorescence as well as large Stokes shifts. They were prepared by condensation of the anhydride 1 and quinaldine in the presence of zinc chloride. The obtained compound 2 was then treated with boron trifluoride etherate, yielding a mixture of 3 and 4. The ratio of the products (3 to 4) varied from 2:1 (toluene, 60 °C) to 1:2 (dichloromethane, room temperature).