Bis(2-thienyl)acetylene
نویسندگان
چکیده
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.
منابع مشابه
trans-2,3-Bis(2,4,5-trimethyl-3-thienyl)but-2-enedinitrile
In title compound, C(18)H(18)N(2)S(2), the dihedral angle between two thio-phene rings is 61.83 (8)°.
متن کامل(2E,2′E)-1,1′-Bis(2,5-dimethyl-3-thienyl)-3,3′-(p-phenylene)diprop-2-en-1-one
In the title bis-chalcone, C(24)H(22)O(2)S(2), the -C(O)CH=CH-C(6)H(4)-CH=CHC(O)- portion is planar (r.m.s. deviation = 0.04 Å); one thienyl ring is aligned at 8.8 (1)° with respect to this fragment, whereas the other is aligned at 21.3 (1)°.
متن کامل2,5-Bis(5-bromo-2-thienyl)thiophene
In the crystal structure of the title compound, C(12)H(6)Br(2)S(3), the mol-ecules are planar (r.m.s. deviation = 0.06 Å). Consecutive mol-ecules do not stack in a planar fashion. There is an angle of 81.7 (12)° between the planes of the closest mol-ecules.
متن کامل1,2-Bis(2-methyl-5-phenyl-3-thienyl)benzene
In the mol-ecule of the title compound, C(28)H(22)S(2), the two thio-phene rings are twisted with respect to the central benzene ring, making dihedral angles of 71.59 (12) and 50.71 (12)°. The two terminal benzene rings are oriented at dihedral angles of 37.59 (11) and 20.12 (11)° to their bonded thio-phene rings.
متن کامل1,2-Bis[5-(4-cyanophenyl)-2-methyl-3-thienyl]-3,3,4,4,5,5-hexafluorocyclopent-1-ene: a photochromic diarylethene compound
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 2...
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