Table 1. Basis set superposition errors for R=Ph

Basis set superposition errors for Houk-List transition state, R=Ph
Method	Geometry	E(cp) (kcal/mol)	ΔE(cp) (kcal/mol)
B3LYP/6-31G(d)	anti	7.34	1.13
B3LYP/6-31G(d)	syn	8.47	1.13
B3LYP/6-311G(d,p)	anti	4.67	0.78
B3LYP/6-311G(d,p)	syn	5.45	0.78
B3LYP/TZVP	anti	1.51	0.19
B3LYP/TZVP	syn	1.70	0.19
B3LYP/QZVP	anti	0.25	0.04
B3LYP/QZVP	syn	0.21	0.04
CBS limit	...	0.0	0.0

$E (cp) = E_{CP}^{CP-B} (CP-B) - E_{CP}^{CP-B} (CP) + E_{B}^{CP-B} (CP-B) - E_{B}^{CP-B} (B)$