Chem. J. Chinese Universities ›› 2018, Vol. 39 ›› Issue (5): 1034.doi: 10.7503/cjcu20170549

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Theoretical Study on Cation Detection Ability of Pyridine-substituted Lindqvist-type Ployoxometalates Based on Linear and Nonlinear Optical Properties

YAN Lingling, LIU Chunguang*, JIANG Mengxu   

  1. College of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
  • Received:2017-08-10 Online:2018-04-16 Published:2018-04-16
  • Contact: LIU Chunguang
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21373043).

Abstract:

Linear(wavelength of maximum absorption, λmax) and nonlinear optical(hyper-Rayleigh scattering first hyperpolarizability, βHRS) properties of a series of pyridine-substituted Lindqvist polyoxometalates(POMs) were studied via density functional theory(DFT)-B3LYP method. The potential abilities for metal cation sensor of these Lindqvist POMs were probed. The calculated adsorption energy of metal cation on these Lindqvist POM ligand indicates that the interaction strength of them decreases in the order of Ni2+>Cu2+>Co2+>Fe2+>Zn2+>Mg2+>Ca2+. The calculated results indicate that the linear and nonlinear optical properties can be effectively tuned by the introduction of electron donor and acceptor. Meanwhile, pyridine-substituted Lindqvist POM ligands display various detection functional for the seven metal cations(Cu2+, Zn2+, Ca2+, Mg2+, Ni2+, Co2+, Fe2+).

Key words: Density functional theory, Nonlinear optical, Lindqvist-type ployoxometalate, Cation detection, First hyperpolarizability

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