5,10,15,20-Tetrakis(diphenylmethyl)porphyrin - A nonplanar porphyrin with intermediate degree of ruffling

Steffen Runge, Mathias O. Senge, Karin Ruhlandt-Senge

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The title compound was prepared by condensation of pyrrole and diphenylacetaldehyde in 16% yield. Based on spectroscopic data, the free base porphyrin exhibits a nonplanar macrocycle in solution with a degree of distortion between that of 5,10,15,20-tetracyclohexylporphyrin and 5,10,15,20-tetra(t-butyl)porphyrin. A crystal structure determination of the cobalt(II) complex reveals a ruffled macrocycle conformation with an average out-of-plane displacement of the meso carbon atoms by 0.55 Å.

Original languageEnglish (US)
Pages (from-to)662-666
Number of pages5
JournalZeitschrift fur Naturforschung - Section B Journal of Chemical Sciences
Issue number5
StatePublished - May 1999


  • Cobalt porphyrins
  • Conformation
  • Crystal structure
  • Porphyrins
  • Steric strain

ASJC Scopus subject areas

  • General Chemistry


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