Table 1. Heats of Formation (ΔH°_f) at 298.15 K for Al:N Complexes and Al:O Complexes Computed at the G4 and G4(MP2) Levels of Theory.

	monomer		bis complex
	G4	G4(MP2)	G4	G4(MP2)
ligand	ΔH°f,298.15 (kcal/mol)	ΔH°f,298.15 (kcal/mol)	ΔH°f,298.15 (kcal/mol)	ΔH°f,298.15 (kcal/mol)
Al:N Complexes
NH3	−7.6	−6.1	−28.5	−26.6
NH2Me	−5.8	−4.0	−24.5	−21.9
NHMe2	−7.0	−4.9	−26.7	−23.7
NMe3	−10.2	−7.9	−33.3	−29.8
NH2Et	−13.0	−11.1	−36.4	−33.9
NHEt2	−19.2	−17.1	—a	−46.3
NEt3	−20.6	−18.1	—a	−49.8
pyridine	32.4	33.7	53.3	54.4
pyrazine	51.2	52.8	87.2	89.1
TEDA	17.6	20.3	—a	26.7
quinuclidine	−6.9	−4.6	—a	−21.9
Al:O Complexes
OH2	−45.7	−44.4	−111.1	−109.4
OHMe	−40.5	−38.7	−98.7	−96.0
OMe2	−38.2	−36.1	−93.4	−90.2
OHEt	−49.1	−47.2	−115.0	−112.2
OEt2	−53.7	−51.4	−112.4	−118.8
OMeEt	−45.8	−43.6	−106.8	−103.5
dioxane	−70.4	−67.8	−158.3	−154.1
THF	−40.0	−37.9	−94.8	−91.5

^aComputation was not feasible.