Bis(triphenylstannyl) thiophene-2,5-dicarboxylate

Abstract

Mol­ecules of the title compound, [Sn2(C6H5)6(C6H2O4S)], lie on inversion centres with the central thio­phene ring disordered equally over two orientations. The carboxyl­ate groups are approximately coplanar with the thio­phene ring [dihedral angle = 4.0 (1)°] and the Sn—O bond distance of 2.058 (4) Å is comparable to that in related organotin carboxyl­ates.

Crystal structure of 4-phenyl-5-(trifluoromethyl)-thiophene-2-carboxylic acid, C12H7F3O2S

“…Such differences also appear between carboxyl group and thiophene ring, with 2.8(2)°, 0.9(4)°and 9.4(1)°, respectively. In the thiophene ring the C-S distances are in the range of 1.705(2)-1.712(2) Å and the C-S-C angles are in the range of 90.5-90.7°, similar to other 2-thiophenecarboxylic acid compounds [2,3]. In the title structure, all molecules are connected to hydrogen-bonded dimers.…”

Synthesis, Ab Initio X-ray Powder Diffraction Crystal Structure, and Magnetic Properties of Mn3(OH)2(C6H2O4S)2 Metal–Organic Framework

“…The bridging mode found here is unprecedented for the tdc linker. Supporting Information, Scheme S1 summarizes, to the best of our knowledge, all the coordination modes observed for tdc in MOFs and coordination polymers − ,,,− or complexes, − as well as the new one found in Mn 3 (OH) 2 (C 6 H 2 O 4 S) 2 MOF. The final geometry of tdc obtained here from synchrotron XRPD data (without any constraints) compares very well with that of the optimized molecule (see Supporting Information, Figure S6).…”

5-(Methoxycarbonyl)thiophene-2-carboxylic acid

“…The derivates of thiophene have been viewed as significant compounds for application in many fields, such as photomaterial, electronic luminescence material (Zhao et al, (2009)). Many simple structures containing thiophene ring were synthesized for their derivates.…”