A PHOTOCHROMIC PYRIDO-ANNULATED 2,2-DIPHENYLCHROMENE

Authors
ALDOSHIN S CHUEV I UTENYSHEV A LOKSHIN V POZZO JL PEPE G GUGLIELMETTI R
Citation
S. Aldoshin et al., A PHOTOCHROMIC PYRIDO-ANNULATED 2,2-DIPHENYLCHROMENE, Acta crystallographica. Section C, Crystal structure communications, 51, 1995, pp. 141-143
Citations number
9
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
51
Year of publication
1995
Part
1
Pages
141 - 143
Database
ISI
SICI code
0108-2701(1995)51:<141:APP2>2.0.ZU;2-X
Abstract
A photochromic pyrido-annulated chromene, 3,3-diphenylpyrano[5,6-f]qui noline, C24H17NO, has been studied. The photoreactive C-sp3-O bond len gth is longer than the standard values observed for oxygen-containing heterocycles as a result of steric interactions between the two phenyl groups.