Photochromic properties of spiro[fluorene-chromenes]

被引：6

作者：

Aldoshin, S ^{[1
]}

Chuev, I

Filipenko, O

Pozzo, JL

Lokshin, V

Pèpe, G

机构：

[1] Inst Chem Phys Chernogolovka, Chernogolovka 142432, Moscow Region, Russia

[2] Fac Sci Luminy, ERS 158, F-13288 Marseille 9, France

[3] Univ Aix Marseille 2 & 3, Ctr Rech Mecanismes Croissance Cristalline, F-13288 Marseille 9, France

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1998年 / 54卷

关键词：

D O I：

10.1107/S0108270198004727

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two annelated spiro [fluorene-chromene] structures, spiro[2H-benzo[h]chromene-2,9'-fluorene], C25H16O, and 9,10,11,12-tetrahydrospiro[3H,8H-cyclohepta[4,5]furano[3,2-f]chromene-2,9'-fluorene], C28H22O2, have been analysed in order to define the effect of introducing a spiro-C atom into the pyran ring on the photochromic properties of the chromenes. The results are compared with those obtained for previously studied non-spiro 2,2-substituted chromenes.

引用

页码：1720 / 1722

页数：3

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