Person, Willis B. published the artcileInfrared spectra of iodine monochloride charge-transfer complexes, Name: Pyridine Iodochloride complex, the publication is Journal of the American Chemical Society (1958), 2049-53, database is CAplus.
Changes in the infrared spectrum of the ICl stretching vibration as the compound forms complexes of increasing stability are reported. Difficulties arising from the chem. reactivity of ICl were encountered and, to a certain extent, eliminated. The spectrum of this band is very sensitive to the strength of interaction between ICl and the donor mol. with which it is complexed. The frequency decreases regularly from 375 cm.-1 for the uncomplexed ICl in CCl4 to 275 cm.-1 for the strongest complex, pyridine-ICl (I). The intensity of the band increases regularly with increasing strength of the complex, and is 8 times as great for I as for the uncomplexed ICl. The half-intensity width also increases with the strength of the complex. An attempt is made to explain the results in terms of “charge-transfer” theory. The analogy between these exptl. results and the changes in the OH stretching frequency on H-bond formation is discussed.
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, Name: Pyridine Iodochloride complex.
Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com