Pii: S0022-4073(01)00234-5
نویسندگان
چکیده
Total internal partition sums (TIPS) are calculated for several molecules, which are abundant in non9 terrestrial planetary atmospheres. For all molecules, calculations are performed for the most abundant isotopic species. Partition sums for lesser abundant isotopomers of several molecules are determined as well. The 11 calculations are made for temperatures between 70 and 300 K. The resulting TIPS are 3t to a polynomial expression, which is fourth order in temperature. The methods of calculation of the TIPS, the convergence, and 13 the quality of the polynomial 3ts for each isotopomer are discussed. ? 2002 Published by Elsevier Science Ltd. 15
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