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Syntheses, Crystal Structures and Fluorescence Properties of Zn(II) Complexes with Pyrazolone Derivatives

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Abstract

N-(1,3-Diphenyl-4-benzal-5-pyrazolone)-salicylidene hydrazone(H2L1) and its zinc complex Zn(HL1)2 · 2CH3OH (1) have been synthesized and characterized by elemental analyses, IR spectra, thermal analyses and single-crystal X-ray diffraction studies. The X-ray diffraction analyses of the complex Zn(HL1)2 · 2CH3OH (1) and the known compound Zn4(L2)4 (2) (H2L2 = N-(1,3-diphenyl-4-phenylethylene-5-pyrazolone)-salicylidene hydrazone) show that different acyl groups in position 4 of pyrazolones may lead to the different coordination mode of the ligands and distinctive structures of the same central metal Zn(II) complexes, of which 1 is a mononuclear complex while 2 is a tetranuclear complex. Meanwhile, two Zn(II) complexes have different thermal stabilities and fluorescence properties.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (No. 20366005 and 20462007), the Scientific Research Foundation in Xinjiang Educational Institutions (XJEDU2005S01) and Young Scholar Science Foundation of Xinjiang Educational Institutions (XJEDU2004E01).

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Authors and Affiliations

  1. Institute of Applied Chemistry, Xinjiang University, Urumqi, 830046, People’s Republic of China

    Li Zhang, Lang Liu, Guan-Cheng Xu & Dian-Zeng Jia

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  1. Li Zhang
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  2. Lang Liu
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  3. Guan-Cheng Xu
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  4. Dian-Zeng Jia
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Correspondence to Dian-Zeng Jia.

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Zhang, L., Liu, L., Xu, GC. et al. Syntheses, Crystal Structures and Fluorescence Properties of Zn(II) Complexes with Pyrazolone Derivatives. J Chem Crystallogr 38, 837–843 (2008). https://doi.org/10.1007/s10870-008-9414-y

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  • DOI: https://doi.org/10.1007/s10870-008-9414-y

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