Chemical Research in Chinese Universities ›› 2014, Vol. 30 ›› Issue (2): 194-199.doi: 10.1007/s40242-014-3368-8

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Structural Characterization and Luminescence Properties of Two 4d-4f Ln-Ag Coordination Compounds Based on Dinuclear Lanthanide Clusters

ZHANG Yu, CHEN Lei, JU Weiwei, XU Yan   

  1. State Key Laboratory of Materials-oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
  • Received:2013-08-30 Revised:2013-10-24 Online:2014-04-01 Published:2013-11-05
  • Contact: XU Yan E-mail:yanxu@njtech.edu.cn
  • Supported by:

    Supported by the Natural Science Foundation of Jiangsu Province, China(No.BK2012823) and the Project of Priority Academic Program Development of Jiangsu Higher Education Institutions, China.

Abstract:

Two new compounds,[ErAg(INA)2(C2O4)]·2H2O(1)(HINA=nicotinic acid) and [Tb0.8Y0.2Ag2(IN)4·(H2O)5]·NO3·2H2O(2)(HIN=isonicotinic acid), based on the {Ln2} building units, have been hydrothermally synthesized and characterized by single-crystal X-ray diffraction, infrared spectroscopy, thermal analysis and powder X-ray diffraction(PXRD). Single-crystal X-ray diffraction data reveal that both compounds crystallized in the low-symmetry triclinic space group P1. Compound 1 is a 3D heterometallic coordination framework based on {Er2} clusters, oxalate ligands and bridging [Ag(INA)] linkers, while compound 2 consists of 0D [Tb0.8·Y0.2Ag2(IN)4(H2O)5]2 subunits that give a 3D supramolecular structure through hydrogen bond interaction. The photoluminescent properties of both compounds(1 and 2) were studied.

Key words: 4d-4f Ln-Ag coordination compound, Doping, Hydrothermal synthesis, Crystal structure