The Diffraction of Xhyphen;Rays by Liquid and Plastic Sulphur

摘要

Xhyphen;ray diffraction patterns of plastic sulphur at room temperature and of liquid sulphur at several temperatures ranging from 124deg;C to 340deg;C have been obtained. The position of the main peak in terms of (sin thgr;)/lgr; is 0.140 at 124deg;C, 0.138 at 147deg;C, 0.138 at 151deg;C, 0.139 at 157deg;C, 0.127 at 166deg;C, 0.127 at 175deg;C, 0.125 at 225deg;C, and 0.120 at 340deg;C. Atomic distribution curves have been obtained in the cases of plastic sulphur, and of liquid sulphur at 124deg;C, 166deg;C, 175deg;C, 225deg;C, and 340deg;C. These curves all appear somewhat similar. The nearest neighbors are found at 2.08A for plastic sulphur, and at approximately 2.07A for liquid sulphur at all temperatures. The number of nearest neighbors is 2.0 for plastic sulphur, and it is about 1.7 for liquid sulphur. The possibility of using the present information in explaining certain properties of sulphur is discussed.