The optimized geometries, vibrational force fields and infrared intensities of trans and cis forms of ClC(O)NCS were calculated by density functional theory (DFT) method with 6 31G * basis set.

• 采用密度泛函理论 DFT( B3LYP)方法 ；以 6-31 G* 为基组对 Cl C( O) NCS的反式和顺式两种构型的几何结构、振动谐性力场和红外光谱进行了研究 .