Levine, B. F. published the artcileCharge transfer complexes and hyperpolarizabilities, Product Details of C5H5ClIN, the publication is Journal of Chemical Physics (1977), 66(3), 1070-4, database is CAplus.
The 2nd-order β and 3rd-order γ hyperpolarizabilities of the 3 charge-transfer complexes pyridine + I2, pyridine + ICl, and 4-aminopyridine + I2 were measured. Mulliken’s charge-transfer theory was used to interpret theor. the large magnitude and absolute sign of these hyperpolarizabilities as well as their interesting and surprising dependence on the strength of the charge-transfer interaction.
Journal of Chemical Physics 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, Product Details of C5H5ClIN.
Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com