A series of M-M ' heterometallic coordination polymers: syntheses, structures and surface photoelectric properties (M=Ni/Co, M '=Cd/Zn)

作者：Li, Lei; Niu, Shu-Yun^*; Jin, Jing; Meng, Qin; Chi, Yu-Xian; Xing, Yong-Heng; Zhang, Guang-Ning

来源：Journal of Solid State Chemistry, 2011, 184(5): 1279-1285.

DOI：10.1016/j.jssc.2011.03.046

• Heterometallic coordination polymer
• Synthesis
• Structure
• Surface photovoltage spectroscopy

Four new heterometallic polymers, [NiCd(mal)(2)(H2O)(2)]n center dot 2nH(2)O 1, [NiZn2(Hcit)(2)(H2O)(2)]n 2, [CoCd2 (Hcit)(2)(H2O)(2)]n 3,[CoZn2(Hcit)(2)(H2O)(2)]n 4 (H(2)mal=malonic acid, H(4)cit=citric acid) were synthesized and characterized. The photoelectric properties of the polymers were discussed by the surface photovoltage spectroscopy (SPS). The structural analyses indicate 1 is a Ni-Cd heterometallic polymer with 3D structure bridged by the mal(2-) group. 2-4 are all heterometallic polymers with 2D structures bridged by the Hcit(3-) group. The results of SPS for the four polymers reveal that there are wide photovoltage response bands in the range of 300-800 nm, which indicates that they all possess photoelectric conversion properties. By the introduction of the other metals, the SPS of heterometallic polymers are broadened obviously than the SPS of monometallic complexes. Moreover, the relationships between SPS and UV-Vis absorption spectra have been discussed.

• 出版日期2011-5
• 单位辽宁师范大学