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1-(2-Chloro-phen-yl)-2-(2-methyl-5-phenyl-3-thien-yl)-3,3,4,4,5,5-hexa-fluoro-cyclo-pent-1-ene: a new photochromic diaryl-ethene.

ABSTRACT: The title compound, C(22)H(13)ClF(6)S, is a hybrid diaryl-ethene derivative with one 3-thienyl substituent, and a Cl-substituted six-membered aryl unit bonded to the double bond of a hexa-fluoro-cyclo-pentene ring. In the crystal structure, the mol-ecule adopts a photo-active anti-parallel conformation that can undergo effective photocyclization reactions. The distance between the two reactive C atoms is 3.848?(3)?Å. The dihedral angles between the least-squares cyclo-pentene plane and those of the adjacent thio-phene and chloro-phenyl rings are 49.39?(8) and 59.88?(8)°, respectively. The F atoms are disordered over two positions, with site occupancy factors of 0.6 and 0.4.

SUBMITTER: Gong S

PROVIDER: S-EPMC2961463 | biostudies-literature | 2008 May

REPOSITORIES: biostudies-literature

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1-(2-Chloro-phen-yl)-2-(2-methyl-5-phenyl-3-thien-yl)-3,3,4,4,5,5-hexa-fluoro-cyclo-pent-1-ene: a new photochromic diaryl-ethene.

Gong Shanshan S Fan Congbin C Liu Weijun W Liu Gang G

Acta crystallographica. Section E, Structure reports online 20080510 Pt 6

The title compound, C(22)H(13)ClF(6)S, is a hybrid diaryl-ethene derivative with one 3-thienyl substituent, and a Cl-substituted six-membered aryl unit bonded to the double bond of a hexa-fluoro-cyclo-pentene ring. In the crystal structure, the mol-ecule adopts a photo-active anti-parallel conformation that can undergo effective photocyclization reactions. The distance between the two reactive C atoms is 3.848 (3) Å. The dihedral angles between the least-squares cyclo-pentene plane and those of ...[more]

PMID: 21202552

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3,3,4,4,5,5-Hexa-fluoro-1,2-bis-[5-(2-fluoro-4'-undecyl-oxybiphenyl-4-yl)-2-methyl-3-thien-yl]cyclo-pentene.

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Project description:The title compound, C(33)H(18)F(6), has a V-shaped conjugated subunit. The dihedral angles between the central cyclo-pentene ring and the directly attached benzene rings are 32.7?(2) and 53.7?(2)°, respectively. The fluoro substituents are disordered, the occupancies refined to a 0.675?(2):0.325?(2) ratio.

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5-n-Butyl-4-[2-(2-ethyl-1-benzothio-phen-3-yl)-3,3,4,4,5,5-hexa-fluoro-cyclo-pent-1-en-1-yl]thio-phene-2-carbaldehyde.

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4-{2-[5-(3,5-Difluoro-phen-yl)-2-methyl-thio-phen-3-yl]-3,3,4,4,5,5-hexa-fluoro-cyclo-pent-1-en-1-yl}-1,5-dimethyl-pyrrole-2-carbonitrile.

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