CRCU

Chemical Research in Chinese Universities ›› 2011, Vol. 27 ›› Issue (4): 531-535.

• Articles • Previous Articles     Next Articles

Ionothermal Synthesis and Phase Transformation of Organic-inorganic Hybrid Neutral Zincophosphate Cluster [Zn(HPO4)(H2PO4)][C6H10N3O2]

DONG Zhao-jun1, YAN Yan1, ZHENG Rong-feng1, LIU Dan1, LI Ji-yang1*, HAN Zhen-guo2* and YU Ji-hong1   

  1. 1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China;
    2. Department of Thoracic Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, P. R. China
  • Received:2010-11-26 Revised:2011-03-16 Online:2011-07-25 Published:2011-06-29
  • Contact: LI Ji-yang;HAN Zhen-guo E-mail:lijiyang@jlu.edu.cn; zhenguohan@hotmail.com
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.20080504).

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Abstract: Ionothermal synthesis was used to prepare a novel amino acid containing hybrid zincophosphate monomer, [Zn(HPO4)(H2PO4)][C6H10N3O2](denoted as ZnPO-CJ58). The inorganic framework of [Zn(HPO4)(H2PO4)][C6H10N3O2] consists of 4-membered rings formed by ZnO3OHis and PO2(OH)2 tetrahedra. The HPO4 and amino acid moieties hang on the Zn center. Such a framework is stabilized by extensive multipoint hydrogen bonds involving the phosphate units and histidine molecules to form a pseudo-3D supramolecular structure. It is noteworthy that ZnPO-CJ58 is the first zinc phosphate cluster with amino acid acting as the ligand. It exhibits photoluminescence  excited at a wavelength of 220 nm. Interestingly, ZnPO-CJ58 can transform into a layered structure (C6H10N3O2)Zn2(HPO4)(PO4)·H2O(ZnPO-CJ36) through further reacting with water or zinc acetate dihydrate in water at 85 °C for 1 h. This work will be helpful for the synthesis of crystalline inorganic-organic hybrid materials with biofunctional molecules.

Key words: Ionothermal, Amino acid, Photoluminescence