Synthesis of Bridged Oligophenylene Laser Dyes
Abstract
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 10, 1991
- Accession Number
- ADA238688
Entities
People
- Charles J. Kelley
- Yuanxi Qin