摘要:
From the reaction products of γ picoline and iodine two distinct addition compounds have been isolated and studied by chemical, spectroscopic, and x-ray radial distribution methods. The second of these compounds to be isolated is an intermediate in the formation of the first, and is analogous to the addition compound of pyridine and iodine prepared by many workers. The x-ray radial distribution analysis of the first compound showed that the covalent bond in the iodine molecule had been broken, and the corresponding analysis of the second compound showed that the covalent bond was still present. A mechanism has been postulated for the reaction of the second compound with excess γ picoline to form the first compound.
The applicability of the Geiger counter x-ray diffractometer to the radial distribution method is discussed, and the theory for the radial distribution analysis of diffraction data consisting of discrete peaks is presented.