title: 3-(4-{3,3,4,4,5,5-Hexafluoro-2-[5-(3-methoxy-phen-yl)-2-methyl-3-thien-yl]cyclo-pent-1-en-yl}-5-methyl-2-thien-yl)benzonitrile.
abstract: The title compound, C(29)H(19)F(6)NOS(2), is a new unsymmetrical photochromic diarylethene derivative with different meta-phenyl substituents. The distance between the two reactive (i.e. can be irradiated to form a new chemical bond) C atoms is 3.501 (4) Å; the dihedral angles between the mean plane of the main central cyclo-pentene ring and the thio-phene rings are 47.7 (5) and 45.1 (2)°, and those between the thio-phene rings and the adjacent benzene rings are 29.4 (2) and 28.4 (3)°. The three C atoms and the F atoms of hexa-fuorocyclo-pentene ring are disordered over two positions, with site-occupancy factors of 0.751 (4) and 0.249 (4).
authors.forename: An-Yin
authors.initials: AY
authors.lastname: Chen
authors.forename: Zhang-Gao
authors.initials: ZG
authors.lastname: Le
authors.forename: Gang
authors.initials: G
authors.lastname: Liu
authors.forename: Shou-Zhi
authors.initials: SZ
authors.lastname: Pu
authors.forename: Cong-Bin
authors.initials: CB
authors.lastname: Fan