测定2-甲基4-1-环丙烷二羧酸根乙二胺合铂(II)([PtenMCPDA])的晶体结构.晶体属正交晶系,空间群为Pn2_1a,晶胞参数:a=0.9075(4),b=1.0247(4),c=11.394(5)nm;分析Patterson函数,找到原子坐标,经差值Fourier合成得到全部非氢原子坐标,用最小二乘法修正,最终R因子为0.0706.采用U-B力场进行了[Pten MCPDA]的分子简正坐标分析.振动基频的计算值与观测值相符合,两者平均偏差6.67cm~(-1),最大误差16.1cm~(-1),证实了振动光谱的归属. The crystal structure of 2-methyl 4-1-cyclopropane dicarboxylate ethylenediamine platinum (II) ([PtenMCPDA]) was determined.The crystal belongs to the orthorhombic system with the space group Pn2_1a and unit cell parameters: a = 0.9075 (4), b = 1.0247 (4), c = 11.394 (5) nm. The Patterson function was analyzed to find the atomic coordinates. The coordinates of all the nonhydrogen atoms were obtained by Fourier transform. The molecular normal coordinate analysis of [Pten MCPDA] was carried out by UB force field.The calculated values ​​of vibrational fundamental frequency are consistent with the observed values, with the average deviation of 6.67cm -1 and the maximum error of 16.1cm -1 ), Confirming the ownership of the vibrational spectrum.