Crystal Structures and Magnetic or Photoluminescent Properties of Copper(ii) and Zinc(ii)-5-Sulfoisophthalate Coordination Polymers
Qing-Yan Liu A C D , Yu-Ling Wang A , Zi-Yi Du B D , Zeng-Mei Shan A , Er-Lei Yang A and Na Zhang AA College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
B College of Chemistry and Life Science, Gannan Normal University, Ganzhou 341000, China.
C State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China.
D Corresponding authors. Email: qyliuchem@hotmail.com; ziyidu@gmail.com
Australian Journal of Chemistry 63(11) 1565-1572 https://doi.org/10.1071/CH10192
Submitted: 12 May 2010 Accepted: 26 August 2010 Published: 11 November 2010
Abstract
{[Cu4(µ3-OH)2(SIP)2(imz)2]·(H2O)2}n (1) and {[Zn3(µ2-OH2)2(SIP)2(phen)3(H2O)3]·(H2O)5}n (2) were obtained under hydrothermal conditions (SIP = 5-sulfoisophthalate, imz = imidazole, and phen = 1,10-phenanthroline). Compound 1 features a novel 3D network based on tetranuclear [Cu4(µ3-OH)2] secondary building unit; its topological structure is similar to that of rutile. Compound 2 is a 1D zigzag chain containing dinuclear [Zn2(µ2-OH2)2(phen)2] and mononuclear [Zn(phen)(H2O)] units. Variable-temperature magnetic studies reveal the existence of dominant ferromagnetic interactions within the tetranuclear copper(ii) cluster in compound 1. Further magnetic measurements indicate that compound 1 has the zero-field splitting parameters D = –0.29 cm–1 and E = 0.00052 cm–1, and g = 2.11 based on ST = 2. Compound 2 exhibits a blue fluorescence emission band at 458 nm on excitation at 391 nm, with a lifetime of 5.78 ns.
Acknowledgement
This work was financially supported by the National Natural Science Foundation of China (grant no. 20901033), the Provincial Natural Science Foundation of Jiangxi (grant no. 2009GZH0056), and the key Project of Education Department of Jiangxi Province (grant no. GJJ10016). The authors thank Professor You Song for helpful assistance in discussing magnetic properties.
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