Reference Label	Details
Ruscic G3B3LYP	G3B3LYP calculation; B3LYP/6-31G(d) frequencies are scaled by 0.9614 (see Scott 1996)
Lesar 2006	A. Lesar, M. Hodoscek, E. Drougas, and A. M. Kosmas, J. Phys. Chem. 110, 7898 (2006)