摘要
合成了标题化合物Cu(S_2CNC_4H_8NC_2H_5)_2,得到深棕色柱状晶体。晶体属三斜晶系,空间群为P1。中心Cu(Ⅱ)离子分别与来自2个N′-乙基-N-哌嗪基二硫代氨基甲酸的4个硫原子配位,形成略微扭曲的平面四方配位构型。4个Cu-S键的键长范围0.22010(11)～0.22034(13)nm;Cu-S键的FT-Raman伸缩振动峰在134.921cm^(-1);ESR谱表明Cu(Ⅱ)离子处于对称中心;其局部配位构型属于D_2h群;热分析表明标题化合物在753.15℃时分解为金属Cu。
The title compound has been prepared and characterized by elemental analyses, infrared and FT-Raman spectra, ESR and thermal analyses. The crystal and molecular structure of bis （N＇-ethyl-N-piperazinly-earbodi- thioato-S,S＇） eopper（Ⅱ） complex, Cu（S2CNC4H8NC2H5）2, was determined by X-ray diffraetion methods. The compound crystallizes in trielinie system, space group P1, with lattice parameters a=0.667 30（13） nm, b=0.847 30（17） nm, c= 0.894 60（18） nm, α=85.00（3）°, β=78.69（3）°, γ=80.05（3）°, Mr=442.17, V=0.487 78（17） nm^3, Z=1, Dc= 1.505 g. cm^-3, F（000）=231, R=0.050 5 and wR=0.137 7. In the structure, central Cu atom coordination geometry is slightly distorted square-planarn with the four S atoms from the two bidentate S2CNC4H8NC2H5 ligands. The four Cu-S bond distances are in the range of 0.220 10（11）-0.220 34（13） nm. The FT-Raman and IR spectral data are in agreement with the structural data. ESR data indicate that Cu（Ⅱ） ions are situated at the center of symmetry and the local structure belongs to D2k; the thermal analytical data indicate that it decomposed completely at the temperature of 753.15 ℃, leaving Cu.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2008年第5期691-695,共5页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金资助项目(No.50372028)
