Reactivity data reported previously by Moore,142 showing the ratio of cyclooctatriene (C8H10) isomers formed following hydrolysis of C8H82− complexes in a degassed, 1 M solution of H2O in THF. The isomers were separated using gas chromatography and analyzed by 1H NMR to determine the ratio. The thermodynamic equilibrium ratio of C8H10 isomers is 40 : 1, 1,3,5-C8H10 to 1,3,6-C8H10.143.
| Starting material | Cyclooctatriene isomera (%) | |
|---|---|---|
| 1,3,5-C8H10 | 1,3,6-C8H10 | |
| M 2 (C 8 H 8 ) complexes | ||
| Li2(C8H8) | 43 | 57 |
| K2(C8H8) | 76 | 24 |
| Cs2(C8H8) | 79 | 21 |
| M(C 8 H 8 ) 2 complexes | ||
| Ce(C8H8)2 | 62 | 38 |
| Th(C8H8)2 | 49 | 51 |
| U(C8H8)2 | 36 | 64 |
a
Reported confidence in the percentages was 2%.142