4.7 Article

Three new five-coordinated mercury (II) dyes: Structure and enhanced two-photon absorption

期刊

DYES AND PIGMENTS
卷 91, 期 2, 页码 237-247

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2011.03.024

关键词

Single crystal; Hydrogen bonds; pi-pi interactions; Linear absorption; Fluorescence; Two-photon absorption

资金

  1. National Natural Science Foundation of China [21071001, 50873001]
  2. Education committee of Anhui Province [KJ2009A52, KJ2010A030]
  3. team for scientific Innovation Foundation of Anhui Province [2006KJ007TD]
  4. Science and Technological Fund of Anhui Province for Outstanding Youth [10040606Y22]
  5. Anhui University
  6. National university [091035707]
  7. Ministry of education

向作者/读者索取更多资源

A new donor bridge acceptor (D-pi-A) type ligand (L: 4'-(4-[4-(imidazole)styryl]phenyl)-2,2':6',2 ''-terpyridine) with two-photon absorption and coordination ability was designed and synthesized. Self-assembly of the ligand with HgX2 (X = Cl, Br, I) yielded a series of new coordination complexes (Dyes 1-3) with five-coordinated mercury (II), which were characterized by single crystal X-ray diffraction determination. Solvent molecules and various weak interactions, including hydrogen bonds (C-H center dot center dot center dot N, C-H center dot center dot center dot X) and pi-pi interactions played significant roles in the final topological structures. Linear and nonlinear optical properties of the ligand and three dyes were described. Experimental results revealed that two-photon absorption cross sections of three dyes are extraordinary stronger than that of ligand. (C) 2011 Elsevier Ltd. All rights reserved.

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