Table 10.
TCA values of Lewis bases, ordered by increasing TCA values.
| system | TCA [kJ/mol] | system | TCA [kJ/mol] |
| PH3 (343) | +18.2 |
 (345) |
+28.0 |
| NEt3 (45) | +31.6 |
 (44) |
+34.1 |
 (347) |
+34.9a |
 (346) |
+54.1a |
| P(iPr)3 (117) | +66.6 |
 (53) |
+70.8 |
| pyridine (1) | +82.9 |
 (14) |
+94.4 |
| PPh(iPr)2 (279) | +106.5 |
 (24) |
+113.4b |
| PPh2t-Bu (281) | +115.3 |
 (348) |
+121.4a |
| P(OPh)3 (252) | +121.5 | Pc-Hex3 (124) | +129.5 |
| PMe3 (70) | +131.3 | PEt3 (98) | +134.2 |
| P(OEt)3 (255) | +134.3 |
 (54) |
+134.7a |
 (254) |
+135.5 | PPh2(iPr) (268) | +137.5 |
| PPhMe2 (256) | +141.9 |
 (56) |
+142.6a |
 (276) |
+142.8 |
 (349) |
+145.9a |
| PPh2c-Hex (285) | +147.4 | PPhn-Bu2 (280) | +148.5 |
| PPh2Et (264) | +149.6 | PPh2n-Bu (102) | +150.4 |
| PPh2Me (259) | +150.6 | PPh2c-Pen (286) | +152.5 |
| PPh2n-Pr (270) | +154.2 |
 (57) |
+154.8a |
 (350) |
+155.6a | PPh3 (89) | +158.8 |
 (60) |
+160.0c |
 (295) |
+176.1 |
 (298) |
+189.9 |
 (300) |
+229.7 |
aPyridine nitrogen; bN3; cN(sp2).