Synthesis, Structure, and Properties of Copper(II) Bromide Complexes with N-Disubstituted Thiocarbamoyl-N'-cyclohexylsulfenamides
作者:G. N. Masanovets、N. V. Khitrich、I. I. Seifullina、L. S. Skorokhod、N. V. Shmatkova、N. N. Efimov、E. A. Ugolkova、V. G. Vlasenko、A. L. Trigub、V. V. Minin
DOI:10.1134/s0036023619110135
日期:2019.11
ligands in the complexes are bidentately coordinated to Cu(II) through the thione sulfur sulfenamide and nitrogen atoms. Exact structural parameters of the nearest environment of Cu(II) have been determined from analysis of Cu and Br K-edge EXAFS spectra. The Cu–N, Cu–S, and Cu–Br bond lengths are within 2.06–2.08, 2.24–2.49, and 2.33–2.38 Å, respectively. The EPR spectra of the complexes in a DMF solution
摘要[CuLBr 2 ]配合物,其中L为RRN–C(= S)–S–NHC 6 H 11且RR =(C 2 H 5)2,(CH 2)5或(CH 2)2 O(CH 2)2,是通过等摩尔量的CuBr 2反应合成的在甲醇中,在乙醚中。已通过元素分析,红外光谱,EPR,X射线吸收光谱,电导率测定,磁化学和热分析研究了这些化合物。根据IR光谱数据,配合物中的配体通过硫酮,亚磺酰胺和氮原子与Cu(II)二齿配位。通过对Cu和Br K边缘EXAFS光谱的分析,确定了最近的Cu(II)环境的确切结构参数。Cu–N,Cu–S和Cu–Br键长分别在2.06-2.08、2.24-2.49和2.33-2.38Å之内。用各向同性自旋哈密顿量和自旋S描述DMF溶液在293 K下的络合物的EPR光谱 = 1/2,包括与中心铜原子的核自旋的超精细偶联和与两个等效溴原子和一个氮原子的核自旋的额外超精细偶联。