In the title compound, C(7)H(5)Cl(2)NO, there are two mol-ecules in the asymmetric unit. The mol-ecules are essentially identical. Each mol-ecule is connected to a symmetry-related mol-ecule through an inversion center by O-H⋯N hydrogen bonds, building an R(2) (2)(6) graph-set motif.

The asymmetric unit of the title compound, C9H11N3O2, contains two mol-ecules (A and B), which exist in Z conformations with respect to their C=N double bond. The dihedral angles between the benzene ring and the pendant hy-droxy-carbamimidoyl and acetamide groups are 28.58 (7) and 1.30 (5)°, respectively, in mol-ecule A and 25.04 (7) and 27.85 (9)°, respectively, in mol-ecule B. An intra-molecu...

The asymmetric unit of title compound, C(36)H(27)As, contains two crystallographically independent mol-ecules, A and B, with similar conformations. The two phenyl rings of each biphenyl unit are twisted slightly away from each other with dihedral angles of 6.0 (2), 27.7 (3) and 33.4 (2)° in mol-ecule A and 5.7 (3), 27.5 (2) and 33.0 (2)° in mol-ecule B. The As-bonded phenyl rings make dihedral ...

The title compound, C17H19N3O2, crystallizes with two independent mol-ecules (A and B) in the asymmetric unit. In both mol-ecules, the pyran ring has a twisted conformation ((5)S4), with Q = 0.301 (3) Å, θ = 116.7 (6) and ϕ= 213.6 (7)° for mol-ecule A, and Q = 0.364 (2) Å, θ = 113.7 (3) and ϕ = 213.0 (4)° for mol-ecule B. In mol-ecule B, the terminal ethyl group is disordered over two orientati...

The title unsymmetrical tetra-thia-fulvalene (TTF), C(7)H(2)N(2)S(7), contains fused 1,2,5-thia-diazole and 1,3-dithiole rings and is a component mol-ecule for conducting organic solids. The TTF mol-ecule is disordered crystallographically over two orientations related by an inversion center, where each site is half-occupied. The mol-ecule is almost planar with an r.m.s. deviation of 0.096 Å. I...

The title two-component mol-ecular crystal [systematic name: 3-(dihy-droxy-boran-yl)benzoic acid-1,3-dimethyl-7H-purine-2,6-dione (1/1)], C(7)H(7)BO(4)·C(7)H(8)N(4)O(2), comprises theophylline and 3-carb-oxy-phenyl-boronic acid mol-ecules in a 1:1 molar ratio. In the crystal, mol-ecules are self-assembled by O-H⋯O and N-H⋯N hydrogen bonds, generating layers parallel to (-209). The layers are st...

In the title complex, [Zn(C(7)H(5)O(3))(C(27)H(27)N(7))]ClO(4)·1.5C(3)H(7)NO, the Zn(II) atom is five-coordinated by four N atoms from a tris-(N-methyl-benzimidazol-2-ylmeth-yl)amine ligand and one O atom from a salicylate ligand in a distorted trigonal-bipyramidal geometry (τ parameter = 0.84), with approximate mol-ecular C(3) symmetry. One dimethyl-formamide mol-ecule lies on a general positi...

The asymmetric unit of the title compound, C(12)H(12)N(2)·C(7)H(7)NO(2), contains two 3-amino-benzoic acid mol-ecules and two 1,2-bis-(4-pyrid-yl)ethane mol-ecules. In the two 1,2-bis-(4-pyrid-yl)ethane mol-ecules, the dihedral angles between the pyridyl rings are 2.99 (9) and 46.78 (8)°. In the crystal, the mol-ecules associate through amine and carboxyl group N-H⋯O=C inter-actions between one...

The title compound, C12H12FNO3, crystallizes with two independent mol-ecules (A and B) in the asymmetric unit. The dihedral angle between the mean planes of the 3-fluoro-4-methyl-phenyl ring and the oxo-amine group is 25.7 (7)° in mol-ecule A and 71.3 (7)° in mol-ecule B, while the mean plane of the 2-methyl-idene-4-oxo-butanoic acid group is twisted by 76.2 (1)° from that of the oxo-amine grou...

The asymmetric unit of the title compound, 3C(10)H(8)N(2)·2C(7)H(7)NO(2), consists of three mol-ecules of 4,4'-bipyridine (bpy) and two mol-ecules of 3-amino-benzoic acid (bza). Two mol-ecules of bza and two mol-ecules of bpy are connected via O-H⋯N, N-H⋯N and N-H⋯O hydrogen bonds, forming forming infinite double-stranded zigzag chains along the c axis. The third mol-ecule of bpy is linked to t...