A photoreversible porphyrazine as model compound for optical data storage

Authors
Freyer, W Stiel, H Leupold, D
Citation
W. Freyer et al., A photoreversible porphyrazine as model compound for optical data storage, J INF REC, 25(1-2), 2000, pp. 95-104
Citations number
22
Categorie Soggetti
Optics & Acoustics
Journal title
JOURNAL OF INFORMATION RECORDING
ISSN journal
10256008 → ACNP
Volume
25
Issue
1-2
Year of publication
2000
Pages
95 - 104
Database
ISI
SICI code
1025-6008(2000)25:1-2<95:APPAMC>2.0.ZU;2-H
Abstract
Oxygen ejection of the title tetraanthraporphyrazine containing four epidio xy bridges has been investigated in solution and PMMA matrix using fs- and ns-excitation conditions. The photocycloreversion produces mixed anthra-ben zo-porphyrazines with different numbers of epidioxy bridges. This photoreac tion is an example for a two-photon process via upper excited states. All p hotoproducts can be reverted into the title tetraepidioxyporphyrazine by re action with singlet oxygen.