Oxophosphoryl Complexes of Dipyrrin: Spectral and Aggregation Characteristics of Solutions and Thin Films

The spectral characteristics of a compound representing a new class of organic luminescent materials—dipyrrin oxophosphoryl complex (PODIPY)—in organic solvents and thin films have been investigated. The compound under study exhibits high-intensity fluorescence in solutions, which is preserved when...

Full description

Saved in:
Bibliographic Details
Published in:Crystallography reports 2019-07, Vol.64 (4), p.644-648
Main Authors: Marfin, Y. S., Vodyanova, O. S., Usoltsev, S. D., Kazak, A. V., Rumyantsev, E. V.
Format: Article
Language:English
Subjects:
Crystallography and Scattering Methods
Fluorescence
Oxygen atoms
Physics
Physics and Astronomy
Solvation
Substrates
Surface and Thin Films
Thin films
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:The spectral characteristics of a compound representing a new class of organic luminescent materials—dipyrrin oxophosphoryl complex (PODIPY)—in organic solvents and thin films have been investigated. The compound under study exhibits high-intensity fluorescence in solutions, which is preserved when passing to thin films obtained by layer-by-layer deposition onto a substrate using the Langmuir–Schaeffer technique. PODIPY is characterized by has bright solvatochromic fluorescence, which is related to the redistribution of the intensities of absorption and fluorescence bands and their shift. This effect originates from the specific solvation of PODIPY with partition of the oxygen atoms of oxophosphoryl group. A transition from solutions to films and an increase in the number of transfers lead to the fluorescence quenching without the formation of G aggregates in the film.
ISSN:1063-7745
1562-689X
DOI:10.1134/S1063774519040138