TY - JOUR
T1 - Rac-3,3′-Bis(4-fluorophenyl)-3,3′-dihydroxy-2,3,2′, 3′-tetrahydro-[2,2′]biindenyl-1,1′-dione
AU - Ohba, Shigeru
AU - Yamamoto, Yohei
AU - Tanaka, Koichi
PY - 2003/9/1
Y1 - 2003/9/1
N2 - The C30H20F2O4 compound obtained as a byproduct in the preparation of biindenylidene compounds was discussed. It was found that the central C11-C11i bond was a single bond, which corresponds to no photochromic property of the compound. The photochromism of these crystals seems to be due to the biradical caused by breaking the π-bond at the center of the biindenylidene moiety. The results show that the angle between the C10-C7 and its symmetry related bond vector was 25.8 (1)°, and the dihedral angle between the two fluorophenyl rings was 12.15 (10)°.
AB - The C30H20F2O4 compound obtained as a byproduct in the preparation of biindenylidene compounds was discussed. It was found that the central C11-C11i bond was a single bond, which corresponds to no photochromic property of the compound. The photochromism of these crystals seems to be due to the biradical caused by breaking the π-bond at the center of the biindenylidene moiety. The results show that the angle between the C10-C7 and its symmetry related bond vector was 25.8 (1)°, and the dihedral angle between the two fluorophenyl rings was 12.15 (10)°.
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U2 - 10.1107/S1600536803016994
DO - 10.1107/S1600536803016994
M3 - Article
AN - SCOPUS:18444364185
SN - 1600-5368
VL - 59
SP - o1261-o1262
JO - Acta Crystallographica Section E: Structure Reports Online
JF - Acta Crystallographica Section E: Structure Reports Online
IS - 9
ER -