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高等学校化学研究 ›› 2012, Vol. 28 ›› Issue (6): 936-941.

• Articles • 上一篇    下一篇

Syntheses, Crystal Structures and Luminescent Properties of Three New Gallium Complexes Containing Pyridine-2,6-dicarboxylic Acid

ZHOU Guang-peng, YANG Yu-lin, FAN Rui-qing   

  1. Department of Chemistry, Harbin Institute of Technology, Harbin 150001, P. R. China
  • 收稿日期:2011-12-19 修回日期:2012-02-01 出版日期:2012-11-25 发布日期:2012-11-09
  • 通讯作者: YANG Yu-lin, FAN Rui-qing E-mail:ylyang@hit.edu.cn;fanruiqing@163.com
  • 基金资助:

    Supported by the National Natural Science Foundation of China(Nos.20971031, 21071035, 21171044), the China Postdoctoral Science Foundation Funded Project(No.65204) and the Key Natural Science Foundation of Heilongjiang Province, China(No.ZD201009).

Syntheses, Crystal Structures and Luminescent Properties of Three New Gallium Complexes Containing Pyridine-2,6-dicarboxylic Acid

ZHOU Guang-peng, YANG Yu-lin, FAN Rui-qing   

  1. Department of Chemistry, Harbin Institute of Technology, Harbin 150001, P. R. China
  • Received:2011-12-19 Revised:2012-02-01 Online:2012-11-25 Published:2012-11-09
  • Contact: YANG Yu-lin, FAN Rui-qing E-mail:ylyang@hit.edu.cn;fanruiqing@163.com
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos.20971031, 21071035, 21171044), the China Postdoctoral Science Foundation Funded Project(No.65204) and the Key Natural Science Foundation of Heilongjiang Province, China(No.ZD201009).

摘要:

Three new gallium complexes formulated as [Ga(PDA)2][Ga(H2O)(PDA)(phen)]·4H2O(1), [Ga(PDA)2]· (H2IN)·2H2O(2) and [Ga(OH)(PDA)(H2O)]2(3)(H2PDA=pyridine-2,6-dicarboxylic acid; phen=1,10-phenanthroline; HIN=isonicotinic acid) have been synthesized under hydrothermal conditions. In the mixed-ligand system of complex 1, PDA2? and phen are connected to the central Ga3+ cation as tri- and bi-dentate ligands, respectively. In complex 2, each Ga3+ cation is six-coordinated by two PDA2? anions octahedrally. Complex 3 shows a binuclear structure, with the bond distance of Ga1-Ga2 being 0.30061(3) nm. The 3D supramolecular structures of the three complexes are constructed via hydrogen bonds and aromatic π-π packing interactions. All the three complexes exhibit intense blue emission at room temperature in the solid state, which are attributed to π* transition centered on the ligands.

关键词: Gallium complex, Crystal structure, Luminescent property

Abstract:

Three new gallium complexes formulated as [Ga(PDA)2][Ga(H2O)(PDA)(phen)]·4H2O(1), [Ga(PDA)2]· (H2IN)·2H2O(2) and [Ga(OH)(PDA)(H2O)]2(3)(H2PDA=pyridine-2,6-dicarboxylic acid; phen=1,10-phenanthroline; HIN=isonicotinic acid) have been synthesized under hydrothermal conditions. In the mixed-ligand system of complex 1, PDA2? and phen are connected to the central Ga3+ cation as tri- and bi-dentate ligands, respectively. In complex 2, each Ga3+ cation is six-coordinated by two PDA2? anions octahedrally. Complex 3 shows a binuclear structure, with the bond distance of Ga1-Ga2 being 0.30061(3) nm. The 3D supramolecular structures of the three complexes are constructed via hydrogen bonds and aromatic π-π packing interactions. All the three complexes exhibit intense blue emission at room temperature in the solid state, which are attributed to π* transition centered on the ligands.

Key words: Gallium complex, Crystal structure, Luminescent property