P. Chaudhuri and S. Canuto, THEOCHEM 577, 267 (2002).
I. R. Gould, W. D. Cornell, and I. H. Hillier, J. Am. Chem. Soc. 116, 9250 (1994).
T. Head-Gordon, M. Head-Gordon, M. J. Frisch, et al., J. Am. Chem. Soc. 113, 5989 (1991).
H. Bohm and S. Brode, J. Am. Chem. Soc. 113, 7129 (1991).
C. D. Keefe and J. K. Pearson, THEOCHEM 679, 65 (2004).
Y. K. Kang and H. S. Park, THEOCHEM 593, 55 (2002).
C. Benzi, R. Improta, G. Scalmani, and V. Barone, J. Comput. Chem. 23, 341 (2002).
E. Langella, N. Rega, R. Improta, et al., J. Comput. Chem. 22, 650 (2001).
B. B. Ivanova, THEOCHEM 782, 122 (2006).
B. B. Ivanova and M. G. Arnaudov, Spectrochim. Acta, Part A 65, 56 (2006).
J. Reedjic, Inorg. Chim. Acta 198, 837 (1994).
J. Reedjic, Chem. Commun., p. 801 (1996).
D. Becke, J. Chem. Phys. 98, 5648 (1993).
Lee, W. Yang and R. G. Parr, Phys. Rev. B: Condens. Matter 37, 785 (1988).
R. Cammi, J. Chem. Phys. 109, 3185 (1998).
R. Cammi and B. Mennucci, J. Chem. Phys. 110, 7627 (1999).
E. D. Glendening, A. E. Reed, J. E. Carpenter, and F. Reinhold, NBO Version 3.1.
R. Reed, L. A. Curtiss and F. Weinhold, Chem. Rev. 88, 899 (1988).
M. J. Frisch, G. W. Trucks, H. B. Schlegel, et al., Gaussian 98 (Gaussian Inc., Pittsburgh PA, London, 1998).
L. Padmaja, C. Ravikumar, C. James, et al., Spectrochim. Acta, Part A (in press).