Table 1.

Calculated relative energies (kcal/mol) using the basis set 6-31+G(d)

Reaction	ΔH1			ΔH‡			ΔH2			ΔHR
	HF	MP2/HF	MP4/HF	HF	MP2/HF	MP4/HF	HF	MP2/HF	MP4/HF	HF	MP2/HF	MP4/HF
1	−11.5	−11.5		11.8	15.5		−25.3	−14.5		−25.0	−10.6
2	−12.1	−13.0		14.1	19.7		−28.0	−17.9		−25.9	−11.2
3	−19.5	−20.8		19.7	23.2		−27.9	−14.6		−27.7	−12.1
4	−15.3	−14.2	−14.5	2.8	4.6	3.0	−56.6	−38.8	−37.0	−69.1	−48.4	−48.5
5	−17.1	−16.8	−17.2	4.7	8.4	6.1	−57.9	−40.6	−38.2	−70.3	−49.0	−49.2
6	−26.9	−26.7	−27.1	9.7	12.3	9.8	−56.3	−36.4	−33.8	−73.5	−50.8	−51.0

The energy designations are given in Fig. 3.