氨荒酸盐的合成及配位性能  

Synthesis of Dithiocarbamate and Coordination Properties with Metal Cations

作　　者：张志朋[1] 钟国清[1] 蒋琪英[1] 

机构地区：[1]西南科技大学材料科学与工程学院,四川绵阳621010

出　　处：《精细化工》2010年第2期201-204,共4页Fine Chemicals

基　　金：四川省学术和技术带头人培养资金资助项目;四川省科技厅应用基础研究项目(05JY029-113)~~

摘　　要：以CS2、NaOH和仲胺为原料,在无水乙醇中制得了3种N,N-二烃基氨荒酸盐R2NCS2Na.H2O[R2N=i-Pr2N、O(CH2CH2)2N、MeN(CH2CH2)2N],用元素分析、XRD、FTIR等对产物进行了表征,并探索了合成工艺条件,利用紫外分光光度法测定了氨荒酸盐与As3+、Sb3+、Bi3+的配位性能。结果表明,氨荒酸盐与金属离子能形成稳定的配合物,其配位能力的强弱顺序为BiI3.(i-Pr)2NCS2Na.H2O>SbI3.(i-Pr)2NCS2Na.H2O>AsI3.(i-Pr)2NCS2Na.H2O。实验确定的合成工艺条件为:n(仲胺)∶n(NaOH)∶n(CS2)=1.0∶1.5∶1.8,反应时间2h,产率分别为89.7%、91.2%和93.2%。Three kinds of N, N-dialkyldithiocarbamate ligands RaNCS2Na · H2O [ R2N = i-Pr2N, O （ CH2CH2） 2N, MeN （ CH2CH2 ） 2N ] were synthesized with the starting materials of CS2, NaOH and secondary amine in anhydrous ethanol. The products were characterized by elementary analysis, X-ray powder diffraction analysis and F-FIR. The conditions for the synthesis of dithiocarbamate ligands were dicussed. The chelated abilities of i-Pr2NCS2Na with tervalent cations （ As^3 ＋ , Sb^3 ＋ , Bi3＋ ） were also measured by UV spectra, and the stability sequence of the complexes for the ligand and metal cations was BiI3 · （i-Pr）2NCS2Na · H2O 〉 SbI3 · （i-Pr）2NCS2Na · H2O 〉 AsI3 · （i-Pr）2NCS2Na · H2O. The conditions for the synthesis were found as follows ： n （ R2 NH） ： n （NaOH） ： n （ CS2 ） = 1.0：1.5 ： 1.8, the time of reaction was 2 h. The yield was 89.7% ,91.2% and 93.2% ,respectively.

关 键 词：氨荒酸盐 表征 配位性能 精细化工中间体 

分 类 号：O627.5[理学—有机化学]