Complexation of diquat by disubstituted dibenzo-30-crown-10 derivatives

Franz H. Kohnke*, J. Fraser Stoddart, Billy L. Allwood, David J. Williams

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


X-Ray structural investigations of the 1:1 crystalline complexes formed between [Diquat][PF6]2 and (i) the bisformyl dibenzo-30-crown-10 derivative 2 and (ii) the dimethyl dibenzo-30-crown-10 derivative 4 reveal that in both cases, charge transfer, as well as electrostatic binding and weak [C-···O] hydrogen bonding combine to give the cortlexes their remarkable stabilities; in acetone solution, the stability constants for the 1:1 complexes involving 2, 3, and 4 are 2100, 50000, and 48000 M-1, respectively.

Original languageEnglish (US)
Pages (from-to)1681-1684
Number of pages4
JournalTetrahedron Letters
Issue number13
StatePublished - 1985

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry


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