Monolayer and spectral properties of various porphyrin derivatives

André Désormeaux, Michel Ringuet, Roger Leblanc

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The surface pressure and surface potential-area isotherms of various porphyrin derivatives have been studied at the air-water interface. The influence of some hydrophilic groups and of long hydrocarbon chains bonded to the porphyrin core on the monolayer and spectral properties is presented. It is shown that small changes in the molecular structure of porphyrins strongly affect the monomolecular and spectral properties of the porphyrin films. Moreover, the amplitude of the surface potential values is mainly governed by the mesomeric conjugation processes between the polar groups and the conjugated porphyrin ring. The spectral characteristics of most porphyrin derivatives have shown strong interactions within the porphyrin films. The presence of long hydrocarbon chains, which are not directly linked to the polar groups, and of flexible hydrophilic groups seem necessary to form a stable monomolecular film which is free of large aggregated structures.

Original languageEnglish
Pages (from-to)57-66
Number of pages10
JournalJournal of Colloid and Interface Science
Volume147
Issue number1
DOIs
StatePublished - Jan 1 1991
Externally publishedYes

Fingerprint

Porphyrins
porphyrins
Monolayers
Derivatives
Surface potential
Hydrocarbons
hydrocarbons
monomolecular films
conjugation
Molecular structure
Isotherms
isotherms
molecular structure
Water
rings
air
Air
water

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry
  • Surfaces and Interfaces

Cite this

Monolayer and spectral properties of various porphyrin derivatives. / Désormeaux, André; Ringuet, Michel; Leblanc, Roger.

In: Journal of Colloid and Interface Science, Vol. 147, No. 1, 01.01.1991, p. 57-66.

Research output: Contribution to journalArticle

Désormeaux, André ; Ringuet, Michel ; Leblanc, Roger. / Monolayer and spectral properties of various porphyrin derivatives. In: Journal of Colloid and Interface Science. 1991 ; Vol. 147, No. 1. pp. 57-66.
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