Table 2. Calculated Data for the Optimized Structures of the κC–X···H3CNMe3 and 3κH–X···Me3NCMe (X = F, Cl, Br, I, Au) Ion Pairs Optimized at the M062X/def2-TZVP Level of Theory: BSSE-Corrected Binding Energies (kcal/mol), Contact Distances (Å) and Angles, van der Waals Penetrations pAB (%), and Dipole Moments μ (D)a.
X | ΔEBSSE | X···C | pXC | X···H | pXH | pXN | Cint–N | Cni–N | μ (D) | |
---|---|---|---|---|---|---|---|---|---|---|
κC | ||||||||||
F | –96.57 | 2.204 | 54 | 2.148 | 14 | 1.561 | 1.479 | 13.68 | ||
Cl | –81.30 | 2.819 | 43 | 2.665 | 21 | 1.525 | 1.484 | 17.11 | ||
Br | –77.45 | 2.998 | 38 | 2.824 | 15 | 1.520 | 1.485 | 18.03 | ||
I | –73.30 | 3.225 | 35 | 3.032 | 14 | 1.517 | 1.486 | 19.10 | ||
Au | –74.14 | 3.076 | 51 | 2.904 | 33 | 1.528 | 1.485 | 17.95 | ||
3κH | ||||||||||
F | –122.09 | 2.756 | 25 | 1.822 | 47 | 12 | 1.498 | 1.478 | 9.20 | |
Cl | –99.48 | 3.322 | 15 | 2.347 | 40 | –2 | 1.497 | 1.482 | 12.24 | |
Br | –93.61 | 3.509 | 7 | 2.523 | 35 | –12 | 1.497 | 1.482 | 13.19 | |
I | –87.43 | 3.746 | 4 | 2.746 | 32 | –17 | 1.496 | 1.483 | 14.29 | |
Au | –87.87 | 3.595 | 25 | 2.598 | 50 | 0 | 1.496 | 1.483 | 13.21 |
Cint and Cni refer to the carbon atoms bonded to H atoms interacting and not interacting with the anion, respectively.