摘要: Our studies during the year consisted of cryogenic measurements of vapor pressure isotope effects (VPIE) in CHF sub 3 , CH sub 2 F sub 2 , CH sub 3 F, and ammonia, interpretations of the results of the VPIE studies of CHF sub 3 an... 展开 Our studies during the year consisted of cryogenic measurements of vapor pressure isotope effects (VPIE) in CHF sub 3 , CH sub 2 F sub 2 , CH sub 3 F, and ammonia, interpretations of the results of the VPIE studies of CHF sub 3 and CH sub 3 F by means of ab initio molecular orbital calculations and vibrational analyses, studies of nitrogen isotope fractionation by an exchange between nitric oxide and the liquid phase consisting of N sub 2 O sub 3 and N sub 2 O sub 4 under elevated pressures, an exploration of the concept of closed refluxer system for the Nitrox process for separating exp 15 N using a Fe(II)/Fe(III) system as reducing agent for nitric acid and the electrolysis for regeneration of Fe(II), and a theoretical study of approximation of the zero-point energy and its isotopic differences developed on the basis of Lanczos' tau-method. (ERA citation 07:015224) 收起