Electrochromic behaviour and x-ray structure analysis of a Pechmann dye, (E)-5,5′-diphenyl-3,3′-bifuranylidene-2,2′-dione

Jack Silver, Mustafa T. Ahmet, Keith Bowden, John R. Miller, Shahdah Rahmat, Christopher A. Reynolds, Alan Bashall, Mary McPartlin, Jill Trotter

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Studies on the title compound have established that, although it could be oxidised with a concomitant change in its visible spectrum, this process is not reversible. This is discussed in the light of the crystal structure which is also reported in this paper. The title compound crystallises in the monoclinic space group P21/n, a = 27.033(6) Å, b = 4.988(2) Å, c = 5.372(2) Å, β =94.59(2)°. The molecules have close intermolecular contacts along stacks packing in the c direction. The packing is compared to that found in two other Pechmann dyes.

Original languageEnglish
Pages (from-to)1201-1204
Number of pages4
JournalJournal of Materials Chemistry
Issue number8
Publication statusPublished - 1 Jan 1994
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry


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