Abstract
The structure of liquid bicyclohexyl, C6H11 - C6H11 at 293 K was investigated using the X-ray diffraction method. Monochromatic radiation CuKα enabled one to determine the scattered radiation intensity between S0 = 4π sin ϑ0/λ = 0.417Å−1 and Smax = 7.06Å−1. The angular distribution of X-ray radiation scattered was measured, and electron-density radial-distribution function (EDRDF) was numerically found using Fourier analysis. A good agreement between the theoretical and experimental functions was obtained on assuming the statistically most probable model of this molecule. The structural data obtainable by X-ray analysis for liquid bicyclohexyl were discussed. The mean distances between the neighbouring molecules were found. The maxima in the EDRDF were at : r1 = 4.68, r2 = 5.57, r3 = 6.62, r4 = 8.05 Å. Computer techniques were used to minimize the effects of experimental errors, uncertainties in the scattering factors, and termination errors. X-ray structural analysis was applied to determine the packing coefficient of bicyclohexyl molecules. A simple model of short-range arrangement of the molecules in liquid bicyclohexyl was proposed.
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