Table 5. Energy Difference (ΔE, kcal mol–1) between the Coordination Isomers of Complexes of the Type 6MM′, 7MM′, and 8MM′ (M = Ni, Pt; M′ = Cu, Ag, Au)a.
| M | M′ | cis-6MM′ | trans-6MM′ | cis–trans-7MM′ | cis-cis-7MM′ | trans-7MM′ | cis-8MM′ | trans-8MM′ |
|---|---|---|---|---|---|---|---|---|
| Ni | Cu | 2.17 | 2.04 | 2.11 | 5.97 | 6.89 | 12.03 | 0.00 |
| Pt | 0.00 | 2.32 | 6.64 | 7.79 | 11.79 | 14.83 | 11.09 | |
| Ni | Ag | 0.37 | 0.00 | 1.89 | 6.22 | 7.43 | 11.75 | 1.53 |
| Pt | 0.00 | 2.00 | 8.08 | 9.92 | 13.23 | 16.89 | 10.76 | |
| Ni | Au | 8.05 | 8.51 | 0.00 | 4.60 | 6.57 | 15.06 | 2.58 |
| Pt | 1.17 | 3.37 | 0.00 | 2.28 | 5.99 | 13.44 | 7.34 |
Energy values of the crystallographically characterized isomers are written in italics and bold style.