Variation in IR and Raman Spectra of CD3CN upon Solvation of InCl3 in CD3CN:Distinctive Blue Shifts, Coordination Number,Donor-Acceptor Interaction, and Solvated Species

Bulletin of the Korean chemical society

Jun Sung Cho¹  Han Gook Cho¹ 

关键词: Acetonitrile-d;    InCl3;    Coordination;    Frequency shift;    Solvation number;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Notable blue shifts of the �?2 C≌N stretching, �?4 C-C stretching and �?8 CCN deformation bands of CD₃CN are observed upon solvation of InCl₃, resulting from the donor-acceptor interaction. The Raman spectrum in the �?2 region shows further details; at least two new bands emerge on the blue side of the �?2 band of free CD₃CN, whose relative intensities vary with concentration, suggesting that there exist at least two different cationic species in the solution. The strong hydrogen bonds formed between the methyl group and InCl₄ ? result in a large band appearing on the red side of the �?1 CD₃ symmetric stretching band. The solvation number of InCl3, determined from the Raman intensities of the C≌N stretching bands for free and coordinated CD₃CN, increases from ~1.5 to ~1.8 with decreasing concentration.

【 授权许可】

Unknown