Polyethyleneoxide-capped phthalocyanines: limiting phthalocyanine aggregation to dimer formation-Reference-Cited by-同舟云学术

Polyethyleneoxide-capped phthalocyanines: limiting phthalocyanine aggregation to dimer formation

Published:2001-07 Issue:07 Volume:05 Page:582-592
ISSN:1088-4246
Container-title:Journal of Porphyrins and Phthalocyanines
language:en
Short-container-title:J. Porphyrins Phthalocyanines

Author:

DOMINGUEZ D. D.¹,SNOW A. W.¹,SHIRK J. S.²,PONG R. G. S.²

Affiliation:

1. Chemistry Division, Naval Research Laboratory, Washington, DC 20375, USA

2. Optical Sciences Division, Naval Research Laboratory, Washington, DC 20375, USA

Abstract

The synthesis and characterization of a soluble metal-free polyethyleneoxide-capped phthalocyanine and the corresponding lead compound are described. This phthalocyanine was designed to allow the formation of dimers but to inhibit formation of higher aggregates. The monomer/dimer equilibrium constant in chloroform solutions is 750 ± 20 l mol -1. No evidence for higher aggregates was found. The molecular extinction coefficient of the metal-free polyethyleneoxide-capped phthalocyanine in chloroform is one of the lowest known (2.5 × 104 l mol -1 cm -1). The lead-substituted material was demonstrated to be a reverse saturable absorber from 532 nm to about 610 nm. It possesses a large nonlinear absorption coefficient in the visible and is a promising optical limiter material.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Chemistry

Link

https://www.worldscientific.com/doi/pdf/10.1002/jpp.365

Reference27 articles.

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2. Molecular association and monolayer formation of soluble phthalocyanine compounds

3. Synthesis, Characterisation, Association in Solution and Electrical Conductivity in Solid State of a Few Aryloxy Substituted Soluble Phthalocyanines

4. Optical limiter using a lead phthalocyanine

5. Off‐resonant third‐order optical nonlinearities of metal‐substituted phthalocyanines

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