Browse
Submit Data
Databases
API
Help

Dataset Information

12 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

1,2-Bis[5-(4-cyano-phen-yl)-2-methyl-3-thien-yl]-3,3,4,4,5,5-hexa-fluoro-cyclo-pent-1-ene: a photochromic diaryl-ethene compound.

ABSTRACT: The mol-ecules of the title compound, C(29)H(16)F(6)N(2)S(2), a photochromic dithienylethene with 4-cyano-phenyl substituents, adopt an anti-parallel arrangement that is reponsible for photoactivity. The mol-ecule lies on a twofold rotation axis. The dihedral angle between the nearly planar cyclo-pentenyl and heteroaryl rings is 142.5?(3)°, and that between the heteroaryl and benzene rings is 22.4?(3)°. The distance between the heteroaryl rings of adjacent mol-ecules is 3.601?(2)?Å, indicating a ?-? interaction.

SUBMITTER: Liu G

PROVIDER: S-EPMC2961168 | biostudies-literature | 2008 Apr

REPOSITORIES: biostudies-literature

ACCESS DATA

Json Xml

Publications

1,2-Bis[5-(4-cyano-phen-yl)-2-methyl-3-thien-yl]-3,3,4,4,5,5-hexa-fluoro-cyclo-pent-1-ene: a photochromic diaryl-ethene compound.

Liu Gang G Tu Qidong Q Zhang Qing Q Fan Congbin C Yang Tianshe T

Acta crystallographica. Section E, Structure reports online 20080430 Pt 5

The mol-ecules of the title compound, C(29)H(16)F(6)N(2)S(2), a photochromic dithienylethene with 4-cyano-phenyl substituents, adopt an anti-parallel arrangement that is reponsible for photoactivity. The mol-ecule lies on a twofold rotation axis. The dihedral angle between the nearly planar cyclo-pentenyl and heteroaryl rings is 142.5 (3)°, and that between the heteroaryl and benzene rings is 22.4 (3)°. The distance between the heteroaryl rings of adjacent mol-ecules is 3.601 (2) Å, indicating a ...[more]

PMID: 21202419

Similar Datasets

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.

Project description: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.

| S-EPMC2961463 | biostudies-literature

1,2-Bis[5-(2,2'-dicyano-vinyl)-2-n-pentyl-3-thien-yl]-3,3,4,4,5,5-hexa-fluoro-cyclo-pent-1-ene: a new photochromic diaryl-ethene compound.

Project description:The title compound, C(31)H(26)F(6)N(4)S(2), is a new photochromic dithienylethene with dicyano-vinyl subsitituents. In the crystal structure, the mol-ecule adopts a photoactive anti-parallel conformation, with two n-pentyl groups located on opposite sides of the cyclo-pentene ring. The cyclo-pentene ring assumes an envelope conformation. The distance between the two reactive C atoms on the thio-phene rings is 3.834?(7)?Å. One of the n-pentyl groups is disordered over two positions; the site occupancy factors are ca 0.7 and 0.3.

| S-EPMC2960348 | biostudies-other

1-[5-(3-Chloro-phen-yl)-2-methyl-3-thi-en-yl]-3,3,4,4,5,5-hexa-fluoro-2-(2-methoxy-phen-yl)-cyclo-pent-1-ene.

Project description:The title compound, C(23)H(15)ClF(6)OS, has thienyl and phenyl-ene substituents on the double-bond C atoms of the envelope-shaped cyclo-pentenyl ring. The aromatic systems are aligned at 55.3?(4) (thien-yl) and 60.8?(7)° (phenyl-ene) with respect to the planar C-C=C-C portion of the main central cyclo-pentenyl ring.

| S-EPMC2977783 | biostudies-literature

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.

Project description: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).

| S-EPMC2970449 | biostudies-literature

2-(1,2-Dimethyl-1H-indol-3-yl)-1-{5-[3-(1,3-dioxolan-2-yl)phen-yl]-2-methyl-thio-phen-3-yl}-3,3,4,4,5,5-hexa-fluoro-cyclo-pent-1-ene.

Project description:The title compound, C(29)H(23)F(6)NO(2)S, a member of a new family of photochromic diaryl-ethene compounds having an unsymmetrically substituted hexa-fluoro-cyclo-pentene unit, displays dihedral angles between the indole and thio-phene rings of 52.5?(4)°, and between the indole ring and the planar C-C=C-C unit of the cyclopentene ring of 53.8?(6)°. The distance between the potentially reactive C atoms from the two heteroaryl substituents of 3.817?(6)?Å is proven to be short enough for photocyclization to occur.

| S-EPMC3247444 | biostudies-literature

4-(5-{2-[5-(4-Cyano-phen-yl)-3-methyl-thio-phen-2-yl]-3,3,4,4,5,5-hexa-fluoro-cyclo-pent-1-en-1-yl}-4-methyl-thio-phen-2-yl)benzo-nitrile chloro-form hemisolvate.

Project description:The crystal structure of the title compound, C29H16F6N2S2·0.5CHCl3, consists of mol-ecules with disordered perfluoro-cyclo-pentene rings [occupancy ratio 0.685?(3):0.315?(3)] and close F?F contacts (in the range 2.45-2.73?Å) between mol-ecules. The short contacts are associated with the disorder. The dihedral angle between thiophene rings is 57.44?(8)°. The 5-(4-cyano-phen-yl)-3-methyl-2-thienyl groups of adjacent mol-ecules are parallel, leading to zigzag chains of mol-ecules along [101]. The dihedral angles between each thiophene ring and its adjacent cyanobenzene ring are 8.9?(2) and 7.15?(10)°.

| S-EPMC3772474 | biostudies-literature

Bis(2-thien-yl)acetyl-ene.

Project description:The planar [maximum deviation 0.0066?(4)?Å] symmetrical mol-ecule of the title compound, C(10)H(6)S(2), lies across a crystallographic inversion centre. The thio-phene rings are rotationally disordered about the acetyl-ene bond, with the two pseudo inversion-related S atoms in 0.80:0.20 occupancy sites. The C C bond distance is 1.195?(9)?Å.

| S-EPMC2970215 | biostudies-literature

3,3,4,4,5,5-Hexafluoro-1,2-bis-(5-formyl-2-methylsulfanyl-3-thienyl)cyclo-pent-1-ene.

Project description:In the crystal structure of the title diaryl-ethyl-ene compound, C(17)H(10)F(6)O(2)S(4), the two 3-thienyl substituents are aligned at 44.9?(1) and 40.2?(1)° with respect to the -C-C=C-C- fragment of the central cyclo-pentenyl ring. The five-membered cyclo-pentenyl ring adopts an envelope conformation. The flap atom of this ring and the two F atoms bonded to it are disordered over two positions with occupancies 0.810?(5)/0.190?(5).

| S-EPMC2961574 | biostudies-literature

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.

Project description:The title compound, C(24)H(20)F(6)OS(2), exhibiting photochromic behaviour, has thienyl and benzothienyl substituents attached to the double-bond C atoms of the envelope-shaped cyclo-pentene ring. The mean planes of aromatic systems form dihedral angles of 43.0 (1) (thien-yl) and 73.8 (1)° (benzothien-yl) with the mean plane of the C-C=C-C portion of the cyclo-pentene ring. This conformation avoids steric hindrance between the n-butyl and ethyl substituents. The formyl substituent of the thienyl group, as well as the ethyl substituent of the benzothienyl group, are disordered [occupancies of 0.788 (17):0.212 (17) and 0.64 (5):0.36 (5), respectively].

| S-EPMC2959974 | biostudies-literature

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.

Project description:In the title compound, C(23)H(14)F(8)N(2)S, the dihedral angles between the pyrrole and thio-phene groups and the almost planar C-C=C-C unit of the cyclo-pentene ring (r.m.s. deviation = 0.4193?Å) are 43.6?(5) and 50.1?(2)°, respectively. The distance of 3.612?(3)?Å between the potentially reactive C atoms of the two heteroaryl substituents is short enough to enable a photocyclization reaction.

| S-EPMC3099757 | biostudies-literature

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data