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Molecular addition compounds of tin(iv) chloride. I. Preparation and infrared spectra of the complexes of stannic chloride with certain amides
Author(s) -
Aggarwal R. C.,
Singh P. P.
Publication year - 1964
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19643320112
Subject(s) - acetamide , chemistry , acetanilide , formamide , amide , chloride , inorganic chemistry , adduct , infrared spectroscopy , tin , medicinal chemistry , organic chemistry
The molecular addition compounds of tin (iv) chloride with N, N‐dimethyl formamide, acetamide, acetanilide, and benzamide have been prepared. They are of the type SnCl 4 · 2 amide. This composition type has been confirmed by indicator titrations of stannic chloride against amides in dichloroethane. Conductivity measurements in nitromethane and molecular weight determinations show that they are true molecular addition compounds being monomeric. The infrared spectra of the adducts show that there are metal‐to‐oxygen bonds in all these compounds as is evidenced by a negative shift of the carbonyl stretching frequency and a positive shift of the CN stretching frequency. The relative donor ability of the amides towards stannic chloride has been found to be: dimethyl formamide > benzamide > acetanilide > acetamide.