Table 4. Relative Energies (eV) in Multistate Energy Decomposition Analysis of the Lowest Singlet and Triplet Excited States in the Acetone Excimer and Acetone-Methyl Vinyl Ether (MVE) Exciplex^a.

(X)···(Y)	(Me2C=O)···(Me2C=O)				(Me2C=O)···(MVE)
energy terms	S1	S2	T1	T2	S1	S2	T1	T2
hν̅oK	3.80	4.39	3.53	4.08	3.79	6.20	3.53	4.39
ΔErefK	2.96	4.35	2.69	4.05	3.00	6.70	2.74	4.40
ΔELint	0.62	0.62	0.62	0.62	0.64	0.64	0.64	0.64
ΔEExK	2.96	4.35	2.69	4.05	3.00	6.70	2.74	4.40
ΔΔEResK	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
ΔΔESEK	–0.06	–0.12	–0.05	–0.12	0.00	–1.03,b 0.04	0.00	0.00
ΔΔEOCDK	0.01	–0.19	–0.04	–0.09	–0.01	–0.55,b −0.11	0.01	–0.53
ΔΔELCTS0	–0.07	–0.07	–0.07	–0.07	–0.09	–0.09	–0.09	–0.09
ΔEb	–0.27	0.27	–0.41	0.38	–0.16	–0.44,b 1.07	–0.14	0.12

^aSee Scheme 1 and the footnote of Table 3.

^bCharge transfer state, energy given relative to the S₂ exciton state.