| Autor: |
Brydges, Stacey, Britten, James F., Chao, Lisa C. F., Gupta, Hari K., McGlinchey, Michael J., Pole, David L. |
| Zdroj: |
Chemistry - A European Journal; July 1998, Vol. 4 Issue: 7 p1201-1205, 5p |
| Abstrakt: |
The first nondisordered structureof a free tropylium cation has been unequivocally determined by single‐crystal X‐ray diffraction. The solid‐state structure of the heptaphenylcycloheptatrienyl cation, C7Ph7+, in [C7Ph7+][CF3CO2−]⋅2 CF3CO2H reveals a severely crowded system in which the central ring is nonplanar, and the propeller blades (the peripheral phenyl substituents) are arranged in a slightly tilted fashion about the seven‐membered ring (right). |
| Databáze: |
Supplemental Index |
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