School of Engineering,Computer Science and Mathematics,University of Exeter,North Park Road,Exeter,Devon EX4 4QF,UK

摘要

A novel compound,(4,4'-Hbpy)_2(K_2Mo_8O_(26))1(bpy = bipydine),was synthesized by hydrothermal method and characterized by X-ray single analysis,thermalgravimetric analysis,one-dimensional(1D)infrared Spectroscopy and two-dimensional(2D)correlation infrared Spectroscopy under thermal perturbation.In the compound 1,the [Mo_8O_(26)] units link to potassium ions to form layer structure,and the protonated 4,4'-bpy are linked to chains by hydrogen bonds.The 2DIR correlation Spectroscopy study indicates that the intensity changes of Mo=O,N-H and C-C stretching vibration are sensitive to the temperature variation,and the intensity changes of asymmetry stretching vibration of the terminal Mo=O occur prior to that of terminal Mo=O linked by K atom.At the same time,the peaks of asymmetry stretching vibrations of the terminal Mo=O and the stretching vibrations of N-H split into two peaks respectively in 2D IR correlation Spectroscopy.