Synthesis of Bridged Oligophenylene Laser Dyes
Final rept. Oct 1989-Feb 1991
MASSACHUSETTS COLL OF PHARMACY AND ALLIED HEALTH SCIENCES BOSTON
Pagination or Media Count:
Bridged hydrocarbon oligophenylene laser dyes with 6 and 8 benzene rings with differing numbers of dipropylmethylene bridges have been synthesized. These molecules are highly fluorescent in the 400-430 nm region. The structure of the previously synthesized unbridged methoxy-substituted azaterphenyl, 4-PyMPP, has been shortened by the insertion of a 2,6-disubstituted naphthalene for a 4,4-biphenylene subunit. Both the naphthalene analog and 4-PyMPP itself have been lengthened by a phenylene unit one bridging group was also present in the latter, an azaquaterphenyl. After naphthalene analog fluoresced at the shortest wavelength 480 nm in the blue green while the longer molecules both fluoresced in the yellow 550 nm. Six new compounds have been submitted to MICOM for testing as flashlamp pumped laser dyes.
- Lasers and Masers