Synthesis, crystal structure, and nonlinear optical behavior of beta-unsubstituted meso-meso E-vinylene-linked porphyrin dimers

Frampton M., Akdas H., Cowley A., Rogers J., Slagle J., Fleitz P., ...Daha Fazla

ORGANIC LETTERS, cilt.7, sa.24, ss.5365-5368, 2005 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 7 Sayı: 24
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1021/ol0520525
  • Dergi Adı: ORGANIC LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.5365-5368
  • Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

A vinylene-linked porphyrin dimer, with no substituents at the beta-positions, has been synthesized by Cul/CsF promoted Stille coupling. In the crystal structure of this dimer, the C2H2 bridge is twisted by 45 degrees relative to the plane of the porphyrins. The absorption, emission spectra, and electrochemistry reveal substantial porphyrin-porphyrin T-conjugation. The triplet excited-state absorption spectrum of this dimer makes it suitable for reverse saturable absorption at 710-900 nm.