SYNTHESIS OF 1,2,3-TRI-T-BUTYL-6,13-PENTACENEQUINONES AND 8,9,10-TRI-T-BUTYL-5,14-PENTACENEQUINONES AND THEIR PHOTOCHROMIC BEHAVIORS - NEW PHOTOCHROMIC MOLECULES

Authors
MIKI S ITO J NODA R NISHIJIMA N FUKUNISHI K
Citation
S. Miki et al., SYNTHESIS OF 1,2,3-TRI-T-BUTYL-6,13-PENTACENEQUINONES AND 8,9,10-TRI-T-BUTYL-5,14-PENTACENEQUINONES AND THEIR PHOTOCHROMIC BEHAVIORS - NEW PHOTOCHROMIC MOLECULES, Tetrahedron, 52(12), 1996, pp. 4269-4276
Citations number
17
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron → ACNP
ISSN journal
00404020
Volume
52
Issue
12
Year of publication
1996
Pages
4269 - 4276
Database
ISI
SICI code
0040-4020(1996)52:12<4269:SO1A8>2.0.ZU;2-I
Abstract
1,2,3-Tri-t-butyl-6,13-pentacenequinone (1a) and 8,9,10-tri-t-butyl-5, 14-pentacenequinone (1b) were synthesized. The lowest excited singlet states of both 1a,b bear pi pi nature strongly. Correspondingly 1a an d 1b undergo photovalence isomerization to give the corresponding vale ne type isomers. The interconversion between the naphtacenequinones an d their valene isomers were reversible photochemically.