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一、前言吡啶与二价金属卤化物所生成络各物的振动光谱,近年来已被广泛研究,其中Py_2CuCl_2是较早的一个.不过大部分研究都只限于红外光谱,而且很少涉及300cm~(-1)以下的低频区间,而正是在这区间会出现金属-配体振动.众所周知,这种振动的力常数反映了金属-配体键的强度,在阐明此类键的性质及预言新的化合物方面都是很重要的.在低频区还没有人作过Py_2CuCl_2的力常数,本文拟从此区间振动光谱简正分析的角度来解决
I. INTRODUCTION Vibrational spectra of various complexes formed by pyridine and divalent metal halides have been extensively studied in recent years, of which Py_2CuCl_2 is an earlier one, but most of the studies are limited to infrared spectroscopy and rarely involve 300cm ~ (-1), and it is the metal-ligand vibration that occurs in this interval.It is well-known that the force constant of this vibration reflects the strength of the metal-ligand bond, and in elucidating the nature and prophecy of such bonds New compounds are very important in the low frequency region has not been made of Py_2CuCl_2 force constant, this article to be from the perspective of a simplified analysis of the vibration spectrum to resolve