Synthesis, Spectral-Luminescent Properties, and Photostability of Zn(II) Complexes With Dipyrrins Modified by the Periphery and meso-Spacer

A comparative spectral-luminescent characterization was performed for the homoleptic zinc(II) chelates with dipyrrins containing four methyl or aryl substituents in the pyrrole rings and methine group or nitrogen atom as meso-spacer. It was shown that zinc dipyrrinates with substituted pyrrole rings...

Full description

Saved in:
Bibliographic Details
Published in:Chemistry of heterocyclic compounds (New York, N.Y. 1965) N.Y. 1965), 2014-03, Vol.49 (12), p.1740-1747
Main Authors: Dudina, N. A., Nikonova, A. Yu, Antina, Ye. V., Berezin, M. B., Vyugin, A. I.
Format: Article
Language:English
Subjects:
Chelates
Chemistry
Chemistry and Materials Science
Comparative analysis
Fluorescence
Nitrogen
Organic Chemistry
Pharmacy
Thiophene
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A comparative spectral-luminescent characterization was performed for the homoleptic zinc(II) chelates with dipyrrins containing four methyl or aryl substituents in the pyrrole rings and methine group or nitrogen atom as meso-spacer. It was shown that zinc dipyrrinates with substituted pyrrole rings and a methene spacer exhibited an intense fluorescence in nonpolar media. The phenyl-substituted complex had an order of magnitude stronger fluorescence than the methyl-substituted analog. Changing from a methene spacer to a nitrogen atom caused a substantial (up to 64 nm) red shift of the electronic absorption spectrum, and the chelate completely lost its fluorescent properties. The effects of the chelate ligand structure on the photostability of zinc(II) complexes were established.
ISSN:0009-3122
1573-8353
DOI:10.1007/s10593-014-1426-2