Pyrylium dyes having a fused, rigidized nitrogen-containing ring

Details Pyrylium dyes having a fused, rigidized nitrogen-containing ring Pyrylium dyes having a fused, rigidized nitrogen-containing ring

1975-10-29

1977-01-25

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260289C, 331 945L, C07D49106

Patent

active

040050920

ABSTRACT:
A class of pyrylium dyes, having at least one rigidized, nitrogen-containing heterocyclic ring fused thereto is described. The rigidized dyes are useful lasing components in lasing media.

REFERENCES:
patent: 3822270 (1974-07-01), Reynolds
patent: 3873940 (1975-03-01), Drexhage

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