Self-Organization of Amphiphilic Porphyrins at the Air-Water Interface

The Langmuir-Blodgett film forming properties of a series of pyridyl((hexadecyloxy)phenyl)porphyrins have been examined. Good monolayers of these compounds have been prepared in most cases without the use of matrix molecules and the monolayers are readily transferable to glassy slides. The small mea...

Full description

Saved in:
Bibliographic Details
Published in:Langmuir 1995-01, Vol.11 (1), p.214-220
Main Authors: Kroon, Johannes M, Sudhoelter, Ernst J. R, Schenning, Albertus P. H. J, Nolte, Roeland J. M
Format: Article
Language:English
Subjects:
140500 - Solar Energy Conversion
400102 - Chemical & Spectral Procedures
400201 - Chemical & Physicochemical Properties
400500 - Photochemistry
ABSORPTION SPECTROSCOPY
CARBOXYLIC ACIDS
Chemistry
CONVERSION
ENERGY CONVERSION
Exact sciences and technology
General and physical chemistry
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
Laboratorium voor Organische chemie
Laboratory for Organic Chemistry
Langmuir blodgett films
MICROSCOPY
MOLECULAR STRUCTURE
OPTICAL MICROSCOPY
ORGANIC ACIDS
Organic Chemistry
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
Organische Chemie
PORPHYRINS
SOLAR ENERGY
SOLAR ENERGY CONVERSION
SPECTROSCOPY
Surface physical chemistry
SURFACE PROPERTIES
THIN FILMS
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The Langmuir-Blodgett film forming properties of a series of pyridyl((hexadecyloxy)phenyl)porphyrins have been examined. Good monolayers of these compounds have been prepared in most cases without the use of matrix molecules and the monolayers are readily transferable to glassy slides. The small mean molecular areas, as obtained from the surface-pressure-area isotherms, indicate a tilted orientation of the porphyrin rings with respect to the water surface. It was found by means of UV-vis absorption spectroscopy at the air-water interface and by Brewster angle microscopy that intermolecular interaction between porphyrin rings mutually directs the organization at submonolayer coverage. Upon compression, the self-assembled domains come into close contact without reorganization of the layer structure. It was also demonstrated that porphyrins with three and four aliphatic side chains self-assembled into a highly-ordered arrangement in contrast to the porphyrins with one and two alkyl chains. 28 refs., 5 figs., 2 tabs.
ISSN:0743-7463
1520-5827
DOI:10.1021/la00001a037