[1] S. R. Langhoff and C. W. Bauschlicher, Jr., J. Chem. Phys. 95, 5882 (1991).
[2] H.-J. Werner and P. J. Knowles, J. Chem. Phys. 89, 5803 (1988).
[3] P. J. Knowles and H.-J. Werner, Chem. Phys. Lett. 145, 514 (1988).
[4] C. L. Yang, Z. H. Zhu, R. Wang, and X. Y. Liu, J. Mol. Struct. (Theochem) 548, 47 (2001).
[5] C. L. Yang and Z. H. Zhu, J. Mol. Struct. (Theochem) 571, 225 (2001).
[6] C. L. Yang, Z. H. Zhang, T. Q. Ren, R. Wang, and Z. H. Zhu, J. Mol. Struct. (Theochem) 583, 63 (2002).
[7] X.-Y. Zhang, C.-L. Yang, F. Gao, and T.-Q. Ren, Chin. Phys. 15, 1981 (2006).
[8] A. N. Alexandrova, H.-J. Zhai, L.-S. Wang, and A. I. Boldyrev, Inorg. Chem. 43, 3552 (2004).
[9] H.-J. Zhai, L.-S. Wang, D. Yu. Zubarev, and A. I. Boldyrev, J. Phys. Chem. A 110, 1689 (2006).
[10] J. Niu, B. K. Rao, and P. Jena, J. Chem. Phys. 107, 132 (1997).
[11] C.-L. Yang, X. Zhang, and K.-L. Han, J. Mol. Struct. (Theochem) 677, 11 (2004).
[12] A. V. Nemukhin, J. Almlof, and A. Heiberg, Chem. Phys. 57, 197 (1981).
[13] A. Papakondylis and A. Mavridis, Chem. Phys. Lett. 341, 382 (2001).
[14] D. Shi, Y. Liu, J. Sun, Z. Zhu, and X. Yang, Chin. Opt. Lett. 3, 683 (2005).
[15] F. Zhang, Z. Deng, J. Yan, and Z. Zhang, Acta Opt. Sin. (in Chinese) 26, 1203 (2006).
[16] J. N. Murrell and K. S. Sorbie, J. Chem. Soc. Faraday Trans. 2 70, 1552 (1974).
[17] T. H. Dunning, Jr., J. Chem. Phys. 90, 1007 (1989).
[18] R. A. Kendall, T. H. Dunning, Jr., and R. J. Harrison, J. Chem. Phys. 96, 6796 (1992).
[19] D. E. Woon and T. H. Dunning, Jr., J. Chem. Phys. 100, 2975 (1994).
[20] C.-L. Yang, X. Zhang, and K.-L. Han, J. Mol. Struct. (Theochem) 678, 183 (2004).
[21] C. L. Yang, Z. H. Zhang, and T. Q. Ren, J. Chem. Phys. 116, 6656 (2002).
[22] Z. Zhu and H. Yu, Molecular Structure and Potential Energy Function (in Chinese) (Science Press, Beijing, 1997) p.41, 43.
[23] F. Gao, C. Yang, and Y. Dong, Chin. Opt. Lett. 5, 187 (2007).
[24] L. Zhang, C. Yang, T. Ren, and M. Wang, Chin. Opt. Lett. 6, 313 (2008).
[25] Q. Qian, C. Yang, F. Gao, and X. Zhang, Acta. Phys. Sin. (in Chinese) 56, 4420 (2007).
[26] X.-Y. Zhang, C.-L. Yang, F. Gao, and T.-Q. Ren, J. Mol. Struct. (Theochem) 816, 97 (2007).
[27] K. P. Huber and G. H. Herzberg, Constants of Diatomic Molecules (Van Nostrand, New York, 1979) p.382.