GAMMA — Specify the macroscopic surface tension of the desired solvent.
GAMMA=n.n
The GAMMA=n.nn keyword specifies the macroscopic surface tension of the desired solvent for an SM5-organic calculation. The value of GAMMA should be in units of cal mol-1 Angstrom-2. The file solvent.data contains values of GAMMA for 178 common organic solvents. A convenient reference for gamma values is the "CRC Handbook of Chemistry and Physics", published by CRC Press. A much more complete reference is Jasper, J. J., J. Phys. Chem. Ref. Data 1 (1972) 841-1009.