ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Synthesis, structure, and luminescent properties of two novel polynuclear complexes of 1,3-di(pyridin-2-yl)propane-1,3-dione

Jin-Ting Tan, Wen-Jie Zhao, San-Ping Chen, Xia Li, Ying-Li Lu, Xing Feng, and Xu-Wu Yang

Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry and Materials Science, Northwest University, Xi’an, 710069 China

E-mail: yangxuwu@nwu.edu.cn

Abstract: Two complexes, {[Cd₆(o-dppd)₂(µ²-Cl)₆(µ³-Cl)₂(DMF)₂(H₂O)₂Cl₂]·DMF·CH₃OH} _n (I) (DMF = N,N-dimethylformamide; o-dppdH = 1,3-di(pyridin-2-yl)propane-1,3-dione) and [Cu₄(o-dppd)₂(OAc)₄(OH)₂]·4H₂O (II), were synthesised and characterised by single-crystal X-ray diffraction, elemental analysis, IR, solid fluorescence and TGA. The results showed that complex I had a rodshaped polynuclear chain with hexacoordinating Cd atoms bridged by oxygen, µ²-Cl and µ³-Cl; complex II was a tetranuclear oligomer. In general, supramolecular architectures are constructed through hydrogen-bonding and π-π stacking interactions. I shows luminescence.

Keywords: β-diketone – polynuclear – supramolecular – solid fluorescence

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-011-0109-z

Chemical Papers 66 (1) 47–53 (2012)