The i.r. and Raman spectra of tetraiodophthalic anhydride, potassium tetraiodophthalimide, tetraiodophthalimide and N-d-tetraiodophthalimide

Article abstract of DOI:10.1016/0584-8539(80)80154-1

The i.r. (4000-170 cm^-1) and Raman (4000-40 cm^-1) spectra were reported for polycrystalline tetraiodophthalic anhydride, potassium tetraiodophthalimide, tetraiodophthalimide and N-d-tetraiodophthalimide.The observed bands of C6I4(CO)2X, where X = O, N^-, NH and ND, were tentatively assigned in comparison with those of C6H4(CO)2X, C6Cl4(CO)2X and C6Br4(CO)2X, on the basis of C_2ν molecular symmetries.A normal coordinate analysis was carried out to confirm the vibrational assignment and obtain the force constants on an assumption of the valence force field.