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Updated: Mar 26, 2026
Monitoring the Effects of Illumination on the Structure of Conjugated Polymer Gels Using Neutron Scattering
Published on: December 21, 2017
Photocurrent-generating properties of bulk and few-layered Cd(ii) coordination polymers based on a rigid
Peng Gang Jiang1, Pan Zhang, Yun Gong
1Department of Applied Chemistry, College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, P. R. China. gongyun7211@cqu.edu.cn.
Abstract:
Based on a rigid ligand, 2,5-bis[3'-carboxyl-phenyl] pyridine (H2L), two coordination polymers (CPs) formulated as Cd3L3(DMF)4 (1) and CdL(DMF)·DMF (2) were solvothermally synthesized and characterized by single-crystal X-ray diffraction. CP 1 is a uninodal 6-connected 3D network with a {4(4)·6(10)·8}-mab topology, in which the Cd3 unit with a CdCd separation of 3.61 Å is observed. CP 2 exhibits a uninodal 2D layer with a 4(4)-sql topology, in which Cd(ii) ions are linked into a Cd-O-Cd chain with a CdCd separation of 3.91 Å. DFT calculations indicate that CP 1 possesses a more narrow band gap than CP 2, and CP 1 yields higher photocurrent density upon visible light illumination than CP 2. In the present work, the few-layered CP 2 has been in situ synthesized, and it shows enhanced photocurrent density with respect to the bulk CP, which is probably associated with the large fraction of uncoordinated surface atoms and dangling bonds in the nanosheet of CP 2.
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