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Published April 5, 1991 | public
Journal Article

Thermodynamics of acetylene van der Waals dimerization

Abstract

Integrated band intensities of the 620 cm^(−1) absorption in (C_2H_2)_2 have been measured by FTIR spectroscopy at constant acetylene pressure between 198 and 273 K. These data, in conjunction with ab initio results for (C_2H_2)_2, have been used for the statistical evaluation of the equilibrium constant K_p(T) for acetylene cluster dimerization. Present results are used to clarify the role of molecular clusters in chemical systems at or near equilibrium, in particular in Titan's stratosphere.

Additional Information

© 1991 Elsevier. Received 12 December 1990. The work described here was performed at the Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA under a contract with the National Aeronautics and Space Administration. We thank Professor Y.L. Yung for a preprint of ref. [15] and for his interest in this work.

Additional details

Created:
August 19, 2023
Modified:
October 23, 2023