The asymmetric unit of the title solvate, C(20)H(14)O(4)·2C(2)D(6)OS, contains half of the substituted terephthalic acid mol-ecule and one solvent mol-ecule. The centroid of the central benzene ring in the acid mol-ecule is coincident with a crystallographic inversion center. Neither the carboxyl nor the phenyl substituents are coplanar with the central aromatic ring, showing dihedral angles of...

In this paper six new copoly(amide-imide)s (7a-f) were synthesized through the direct polycondensation reaction of N,N'-(4,4'-diphenylsulfone)bistrimellitimide (1) with 4,4'-diamino diphenylsulfone (2), 4,4'-diamino diphenylether (3), in the presence of adipic acid (4), fumaric acid (5) or terephthalic acid (6) as the second diacid in a medium consisting of N-methyl-2-pyrrolidone, triphenyl pho...

Oligocholate macrocycles self-assemble into transmembrane nanopores by the associative interactions of water molecules inside the amphiphilic macrocycles. Macrocycles functionalized with a terephthalic acid "side chain" displayed significantly higher transport activity for glucose across lipid bilayers than the corresponding methyl ester derivative. Changing the 1,4-substitution of the dicarbox...

Non-Newtonian Fabrics are produced from Polymerization of Terephthalic Acid and Etylene Glycol. In view of manufacturing defects, the finished products are sold at a massive discount of 45%-65%. Presently manual inspection is being done, where an expert inspector detects only 70% of defects. Here, we are simulating automatic defect detection of fabrics by means of using computers. We proposed t...

The title compound, C(10)H(10)O(6), was obtained from an esterification reaction of 2,6-dihydroxy-terephthalic acid and methanol. In the mol-ecular structure, all of the C atoms are nearly coplanar. The two hydr-oxy groups have C2 symmetry. Intra-molecular O-H⋯O hydrogen bonds are observed. In the crystal, weak O-H⋯O inter-actions link the mol-ecules.