Klaeboe, Peter published the artcileThe Raman spectra of some iodine, bromine, and iodine monochloride charge-transfer coomplexes in solution, Related Products of iodides-buliding-blocks, the publication is Journal of the American Chemical Society (1967), 89(15), 3667-76, database is CAplus.
The Raman spectra of I2, Br2, and ICl have been studied in various solutions in the region below 400 cm.-1 by means of a Raman spectrophotometer equipped with a 50 mw. He-Ne laser. Quite satisfactory Raman spectra of these colored solutions were obtained, but for some Br and ICl complexes chem. reactions occurred. The observed Raman frequencies for the halogens or the interhalogen were considerably lower than the corresponding gas values, and the data have been interpreted on the basis of charge-transfer interaction. Some very strong donor-halogen interactions were observed, in which the stretching force constant of the halogens was reduced to approx. half the gas value. A Raman band at 163 cm.-1 in the pyridineiodine system was interpreted as the N-I stretching mode; otherwise no Raman bands were observed which can with certainty be assigned to the stretching of the donor-halogen charge-transfer bond. 36 references.
Journal of the American Chemical Society published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C5H5ClIN, Related Products of iodides-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com