作者:Adegboye O. Adeyemo*、Gabriel A. Kolawole、Edet F. Archibong
DOI:10.1016/s0020-1693(00)83248-x
日期:1989.11
Abstract Some cobalt(II) complexes of vitamin B1 and its derivatives have been prepared and characterised by elemental analysis, IR and electronic spectra, conductivity and magnetic susceptibility measurements. One of the new complexes, Co(Th)Br3·H2O is found to be isomorphous with the Co(Th)Cl3 analogue already reported [1], as both exhibit identical IR spectra. Although, the thiocyanato complex, [Co(Th)(OAc)SCN]SCN
摘要制备了一些维生素B1及其衍生物的钴(II)配合物,并通过元素分析,红外光谱和电子光谱,电导率和磁化率测量对其进行了表征。发现一种新的配合物Co(Th)Br3·H2O与已经报道的Co(Th)Cl3类似物是同构的[1],因为它们都具有相同的红外光谱。尽管硫氰酸根络合物[Co(Th)(OAc)SCN] SCN也具有四面体结构,但发现它是硝基甲烷中的1:1电解质。另一方面,碘配合物呈扭曲的方形锥体结构,并且在相同溶剂中仅被部分电离。根据配合物相对于各自配体的ν(C = C)+ν(C = N)模态的位移,将这些配合物的相对稳定性大致表示为Cl> Br> SCN>I。