Structure and Vibrational Spectra of Anilinium Tetrachlorocuprate

The structure of anilinium tetrachlorocuprate（Ⅱ） （C₆H₅NH₃）2CuCl₄ has been determined from three dimensional X-ray dsta and refined by the method of least squares to a conventional R-value of 0.038. The single crystal is mono clinic, space sroup P₂₁/a with cell parameters a=0. 7184,b=0. 7448,c=1. 5070nm, β=100. 67, v=0. 7924nm³, z=2, D_x=1. 650gcm^-3, （Mo,Ka）= 0. 071069nm, μ=4. 056mm^-1, F（000）=398. In the compound （CuCl₄^2-） anions are in square-plsnes which are connected with one another. The inorgsnic anion layers are sandwiched between anilininm ions. The infrared spectra at two temperature from 50 to 550cm^-1 and Raman spectrum from 100 to 600cm-1 had been measured. Low frequency vibrational spectra have been assigned by the site group analysis.