Novel Zn (II) and Pb (II) coordination networks with large circuits: Synthesis, crystal structures and self-focusing effects |
| |
| Authors: | Xiangru Meng Yinglin Song Yaoting Fan |
| |
| Institution: | a Department of Chemistry, Zhengzhou University, Henan 450052, PR China
b Department of Applied Physics, Harbin Institute of Technology, Heilongjiang 150001, PR China |
| |
| Abstract: | Two coordination polymers {Zn(btx)2(NO3)2]}n (1) and {Pb(btx)1.5(NCS)]NO3}n (2) (btx = 1,4-bis(triazol-1-ylmethyl)benzene) have been synthesized and characterized by X-ray diffraction. Polymer 1 exhibits a 2-D network with square grid units and polymer 2 possesses an unusual 2-D layered structure with 78-membered rings. By studying the third-order nonlinear optical properties of ligand btx, polymers 1 and 2, we find that they all show strong self-focusing effects. A reasonably good fit between the experimental data and the theoretical curves suggests that the experimentally obtained NLO effects are effectively third-order in nature. The refractive index n2 values are 4.50 × 10−18 m2 W−1 for btx, 3.09 × 10−18 m2 W−1 for 1, and 6.01 × 10−18 m2 W−1 for 2. All these data can match those of the best-known third-order NLO materials such as inorganic oxides, semiconductors, and cluster compounds. In addition, we discuss the influence of the ligand and central metals on the third-order NLO properties of coordination polymers. |
| |
| Keywords: | Crystal structure Coordination polymer Large ring Nonlinear optical property |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
