Chem. J. Chinese Universities ›› 2018, Vol. 39 ›› Issue (10): 2161.doi: 10.7503/cjcu20180076

• Articles:Inorganic Chemistry • Previous Articles     Next Articles

Synthesis, Structure and Photoelectric Property of A Series of Ni(Ⅱ) Complexes Constructed Through Aromatic Carboxylic Ligands

YUN Jixing, HU Zhili, LI Yumeng, JIN Jing*(), CHEN Chong, YAN Xin, LIU Yonghua, DING Yu, CHI Yuxian*(), NIU Shuyun   

  1. School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
  • Received:2018-01-25 Online:2018-09-29 Published:2018-09-29
  • Contact: JIN Jing,CHI Yuxian E-mail:jinjing_crystal@126.com;yxchi@lnna.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.21133005), the Natural Science Foundation of Liaoning Province, China(No.20170540576) and the Educational Foundation of Liaoning Province, China(No.L201783635).

Abstract:

Six Ni(Ⅱ) complexes based on aromatic carboxylic ligands, [Ni(pz)4(H2O)2]·2H2btc·H2O(1), {[Ni2(pz)8(btec)]·4H2O}n(2), {[Ni(H2btec)(phen)]∙2H2O}n(3), [Ni(Hbdc)2(pz)4](4), {[Ni3(bdc)(pz)12]·2H2O}n(5) and [Ni(bdc)(pz)2(H2O)]n(6)(pz=pyrazole, H3btc=1,3,5-benzenetricarbolylic acid, H4btec=1,2,4,5-benzenetetracarboxylic acid, phen=1,10-phennanthroline, H2bdc=1,2-benzenedicarboxylic acid), were hydrothermally synthesized. All the complexes were structurally and photophysically characterized by means of single crystal X-ray diffraction, infrared(IR) and UV-Vis-NIR electronic spectra, elemental analysis, X-ray diffraction(XRD) and surface photovoltage spectra(SPS). The Ni(Ⅱ) centers in six complexes have the square-pyramid or octahedral coordination environment. Complexes 1 and 4 have 2D supramolecular structure networked by hydrogen bonds. Complexes 2 and 3 possess 2D coordination framework structure constructed by btec4- ligands with monodentate and monoatomic bridging modes. Complexes 5 and 6 have 1D coordination chain structure built by bdc2- anions with monodentate/chelating coordination modes, which are further networked into 2D supramolecules by hydrogen bonds. All the six complexes exhibit certain photo-electric conversion properties under the inducement of UV-Vis lights. When a positive electric field is applied to the six complexes, the intensity change of photoelectric response of the six complexes presents difference which correlates with the bonding mode of the structure and type of the organic ligands.

Key words: Aromatic carboxylic acid, Ni(Ⅱ) complex;, Crystal structure, Photophysical property, Photoelectric property

CLC Number: 

TrendMD: