Isolation and crystal structure of a dithiophene dication: controlling covalent connection and disconnection with temperature and phase.
نویسندگان
چکیده
A dithienylethene (1o) undergoes a two-electron chemical oxidation to a singlet diradical as an open-isomer (1o(2+)) in solution, which cyclizes to a closed-form (1c(2+)) upon cooling. The latter crystallizes out and its structure is analyzed by single crystal X-ray diffraction. Equilibrium between 1o(2+) and 1c(2+) in solution is observed by NMR and UV spectroscopy at various temperatures and is further supported by reduction reactions with Zn powder.
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ورودعنوان ژورنال:
- Chemical communications
دوره 51 93 شماره
صفحات -
تاریخ انتشار 2015