RESUMEN
The asymmetric unit of the title compound, C13H11N3O5S, contains two independent mol-ecules, which are linked by a pair of inter-molecular N-Hâ¯S hydrogen bonds, forming an R2(2)(8) ring motif. The central thio-urea core forms dihedral angles of 3.02â (12) and 14.00â (10)° with the essentially planar furoyl groups [maximum deviations = 0.030â (2) and 0.057â (2)â Å] in the two mol-ecules and dihedral angles of 2.43â (13) and 8.03â (12)° with the benzene rings. The dihedral angles between the furoyl and benzene rings in the two mol-ecules are 3.97â (10) and 5.98â (9)°. The trans-cis geometry of the thio-urea group is stabilized by three intra-molecular N-Hâ¯O hydrogen bonds involving carbonyl and meth-oxy O atoms with the H atom of the cis-thio-amide group and between furan O atom and the other thio-amide H atom. There is also a weak intra-molecular C-Hâ¯S inter-action in each mol-ecule.
RESUMEN
In the title compound, C(16)H(12)N(2)OS(2), the dihedral angles between the mean planes of the central thio-urea core and the thio-phene ring and the naphthalene ring system are 1.8â (2) and 6.45â (18)°, respectively. The mol-ecule adopts a trans-cis conformation with respect to the position of thio-phenoyl and naphthyl groups relative to the S atom across the thiourea C-N bonds. Both the thio-phene ring and the sulfanyl-idene S atom are disordered over two sets of sites with occupancies of 0.862â (3):0.138â (3) and 0.977â (3):0.023â (3), respectively. An intra-molecular N-Hâ¯O hydrogen bond is observed. The crystal packing features two N-Hâ¯S hydrogen bonds.
RESUMEN
The title compound, C(13)H(11)NO(3)S, was synthesized from methyl anthranilate, triethyl-amine and 2-thio-phenoyl chloride in benzene. The mol-ecular conformation is stabilized by an intra-molecular N-Hâ¯O hydrogen bond. The dihedral angle between the rings is 2.74â (12)°. In the crystal, C-Hâ¯O inter-actions link neighbouring mol-ecules into a three-dimensional network.
RESUMEN
The title compound, C9H7N3OS3·0.5H2O, crystallizes with two independent but similar mol-ecules in the asymmetric unit, both of which are linked by a water mol-ecule through O-Hâ¯N hydrogen bonds. In addition the water O atom is further linked by N-Hâ¯O hydrogen bonds to two additional main mol-ecules, forming a tetra-meric unit. These tetra-meric units then form infinite ribbons parallel to the ac plane.The dihedral angle between the thio-phenoyl and thia-zolyl rings is 12.15â (10) and 21.69â (11)° in mol-ecules A and B, respectively. The central thio-urea core makes dihedral angles of 5.77â (11) and 8.61â (9)°, respectively, with the thio--phen-oyl and thia-zolyl rings in mol-ecule A and 8.41â (10) and 13.43â (12)° in mol-ecule B. Each mol-ecule adopts a trans-cis geometry with respect to the position of thio-phenoyl and thia-zole groups relative to the S atom across the thio-urea C-N bonds. This geometry is stabilized by intra-molecular N-Hâ¯O hydrogen bonds.
RESUMEN
The title compound, C10H8N4O2S, was synthesized from furoyl isothio-cynate and 2-amino-pyrimidine in dry acetone. The two N-H groups are in an anti conformation with respect to each other and one N-H group is anti to the C=S group while the other is syn. The amide C=S and the C=O groups are syn to each other. The mean plane of the central thio-urea fragment forms dihedral angles of 13.50â (14) and 5.03â (11)° with the furan and pyrimidine rings, respectively. The dihedral angle between the furan and pyrimidine rings is 18.43â (10)°. The mol-ecular conformation is stabilized by an intra-molecular N-Hâ¯N hydrogen bond generating an S(6) ring motif. In the crystal, mol-ecules are linked by pairs of N-Hâ¯N and weak C-Hâ¯S hydrogen bonds to form inversion dimers.