Table 3. Calculated Acid Synergy Factors (at 298.15 K, 1 atm) at the DLPNO-CCSD(T₀)/aug-cc-pVTZ//ωB97X-D/6-31++G(d,p) Level of Theory Using the Quasi-harmonic Approximation.

acid synergy	ΓSA,MSA
(A)2	0.1
(MA)2	0.3
(DMA)2	–1.5
(TMA)2	1.7
(EDA)2	–1.0
(A)1(MA)1	0.1
(A)1(DMA)1	–1.2
(A)1(TMA)1	–1.9
(A)1(EDA)1	–1.7
(MA)1(DMA)1	–1.2
(MA)1(TMA)1	–2.5
(MA)1(EDA)1	–1.1
(DMA)1(TMA)1	–2.0
(DMA)1(EDA)1	–1.3
(TMA)1(EDA)1	0.6