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Isolation and crystal structure of a dithiophene dication: controlling covalent connection and disconnection with temperature and phase

Journal Article


Abstract


  • A dithienylethene (1o) undergoes a two-electron chemical oxidation to a singlet diradical as an open-isomer (1o2+) in solution, which cyclizes to a closed-form (1c2+) upon cooling. The latter crystallizes out and its structure is analyzed by single crystal X-ray diffraction. Equilibrium between 1o2+ and 1c2+ in solution is observed by NMR and UV spectroscopy at various temperatures and is further supported by reduction reactions with Zn powder.

Authors


  •   Wang, Xinping (external author)
  •   Yuan, Ningning (external author)
  •   Zhang, Zaichao (external author)
  •   Wang, Xingyong

Publication Date


  • 2015

Geographic Focus


Citation


  • Wang, X., Yuan, N., Zhang, Z. & Wang, X. (2015). Isolation and crystal structure of a dithiophene dication: controlling covalent connection and disconnection with temperature and phase. Chemical Communications, 51 (93), 16714-16717.

Scopus Eid


  • 2-s2.0-84947465854

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/3907

Number Of Pages


  • 3

Start Page


  • 16714

End Page


  • 16717

Volume


  • 51

Issue


  • 93

Abstract


  • A dithienylethene (1o) undergoes a two-electron chemical oxidation to a singlet diradical as an open-isomer (1o2+) in solution, which cyclizes to a closed-form (1c2+) upon cooling. The latter crystallizes out and its structure is analyzed by single crystal X-ray diffraction. Equilibrium between 1o2+ and 1c2+ in solution is observed by NMR and UV spectroscopy at various temperatures and is further supported by reduction reactions with Zn powder.

Authors


  •   Wang, Xinping (external author)
  •   Yuan, Ningning (external author)
  •   Zhang, Zaichao (external author)
  •   Wang, Xingyong

Publication Date


  • 2015

Geographic Focus


Citation


  • Wang, X., Yuan, N., Zhang, Z. & Wang, X. (2015). Isolation and crystal structure of a dithiophene dication: controlling covalent connection and disconnection with temperature and phase. Chemical Communications, 51 (93), 16714-16717.

Scopus Eid


  • 2-s2.0-84947465854

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/3907

Number Of Pages


  • 3

Start Page


  • 16714

End Page


  • 16717

Volume


  • 51

Issue


  • 93