Oligooxyethylene liquid phthalocyanines

✍ Scribed by Arthur W. Snow; James S. Shirk; Richard G. S. Pong

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 109 KB
• Volume: 04
• Category: Article
• ISSN: 1088-4246
• DOI: 10.1002/1099-1409(200008)4:5<518::aid-jpp279>3.0.co;2-e

✦ Synopsis

A series of methyl-terminated oligooxyethylene ( CH ~3~( OCH ~2~ CH ~2~)~n~ O , n = 8.8)-substituted phthalocyanines with peripheral substitution at four β positions, at four α positions and at the eight α positions was synthesized and structurally characterized. These compounds are isotropic liquids above 10 °C. Non-linear optical properties of the tetra-α- and tetra-β-substituted compounds were examined. Both are reverse saturable absorbers in the visible region of the spectrum, but the tetra-α-substituted compound has the larger non-linear absorption coefficient and can be a useful optical limiter in cases where a non-volatile liquid is desirable.