The Raman spectra of Bis(hexamethylenetetramine)-iodine(I) and -bromine(I) perchlorates

Abstract

The low-wavenumber (<200 cm-1) Raman spectra of bis(hexamethylenetetramine)iodine(I) perchlorate and bis(hexamethylenetetramine)bromine(I) perchlorate have been measured, and the nitrogen-halogen symmetric stretching mode of the cation has been assigned for each compound. The nitrogen-halogen bond stretching and interaction force constants for the cations have been calculated, and these are found to be very similar to those for the corresponding bis(pyridine)halogen(I) cations.