| C6 | C8 | C10 | Ref. |
|---|---|---|---|
| 1.388[3] | 8.183[4] | 7.289[6] | S. H. Patil and K. T. Tang, J. Chem. Phys. 106, 2301 (1997) |
| 1.39339[3] | 8.34258[4] | 7.3721[6] | Z. -C. Yan, J. F. Babb, A. Dalgarno, and G. W. F. Drake, Phys. Rev. A 54, 2824 (1996) |
| 1.388[3] | 8.324[4] | 7.365[6] | M. Marinescu, H. R. Sadeghpour, and A. Dalgarno, Phys. Rev. A 49, 982 (1994) |
| 1.4078[3] | 8.43165[4] | n/a | M. Merawa, M. Rerat, and C. Pouchan, Phys. Rev. A 49, 2493 (1994) |
| 1.385[3] | 8.303[4] | 7.306[6] | D. Spelsberg, T. Lorenz, and W. Meyer, J. Chem. Phys. 99, 7845 (1993) |
| 1.445[3] | 8.847[4] | 7.902[6] | P. J. Knowles and W. J. Meath, Chem. Phys. Lett. 124, 164 (1986) |
| 1.383[3] | 7.578[4] | 4.817[6] | B. Bussery and M. Aubert-Frecon, J. Chem. Phys. 82, 3224 (1985) |
| 1.360[3] | n/a | n/a | M. L. Manakov and V. O. Ovsiannikov, J. Phys. B 10, 569 (1985) |
| 1.385(0.005)[3] | 8.04(0.15)[4] | 6.775(0.275)[6] | J. M. Standard and P. R. Certain, J. Chem. Phys. 83, 3002 (1985) |
| 1.386[3] | n/a | n/a | W. Muller, J. Flesch, and W. Meyer, J. Chem. Phys. 80, 3297 (1984) |
| 1.389[3] | 8.089[4] | 6.901[6] | F. Maeder and W. Kutzelnigg, Chem. Phys. 42, 195 (1979) |
| 1.391[3] | n/a | n/a | D. J. Margoliash and W. J. Meath, J. Chem. Phys. 68, 1426 (1978) |
| 1.39[3] | 8.40(0.14)[4] | 7.21(0.24)[6] | K. T. Tang, J. M. Norbeck, and P. R. Certain, J. Chem. Phys. 64, 3063 (1976) |
| 1.38(0.01)[3] | n/a | n/a | P. W. Langhoff and M. Karplus, J. Chem. Phys. 53, 233 (1970) |
| 1.391[3] | n/a | n/a | G. M. Stancey and A. Dalgarno, J. Chem. Phys. 48, 2515 (1968) |
| 1.389[3] | n/a | n/a | A. Dalgarno and W. D. Davision, Adv. At. Mol. Phys. 2, 1 (1966) |