Zingaro, Ralph A. published the artcileInfrared spectra of pyridine coördinated iodine(I) salts, Recommanded Product: Pyridine Iodochloride complex, the publication is Journal of the American Chemical Society (1959), 1353-7, database is CAplus.
The spectra of (Ipy)X (py = C5H5N and X = OAc, BzO, CN, F, Cl, Br, ClO4, and NO3), (Ipy2)ClO4 and NO3, and (pyH)I are determined and compared with those of py and solutions of I2 in py. The results are related to data from studies of ultraviolet spectra and conductivities of I2-py solutions The py-I2 complex must be very polar. On the basis of the spectral change resulting from coördination of py with I2 it is suggested that the 990-cm.-1 band of py be assigned to a H deformation mode. (Ipy)CN is prepared by adding I2 to AgCN suspended in a CHCl3 solution of py. AgI and AgCN are separated and the filtrate evaporated at 1 mm. Hg and Dry-Ice temperature The compound forms orange crystals which can be kept as long as 10 days in vacuo at Dry-Ice temperature Decomposition begins at 34° and is rapid at 50-3°. It is colored only in nonpolar solvents. (Ipy)F is prepared similarly from AgF. It forms pale yellow crystals which decompose over the range 80-97°. It is soluble in EtOH and Me2O with subsequent decomposition It is insoluble in CCl4, CHCl3, or CS2. Decomposition is instantaneous on contact with water.
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 C13H19Br2ClN2O, Recommanded Product: Pyridine Iodochloride complex.
Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com