Acta Crystallographica Section E: Structure Reports Online - Volume 64, issue Pt 12

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Electronic ISSN
1600-5368

Abstract

There are two mol­ecules in the asymmetric unit of the title compound, C14H10ClN3, with dihedral angles of 5.11 (10) and 13.61 (10)° between the aromatic ring systems. In the crystal structure, mol­ecules are linked by N—H⋯N hydrogen bonds, resulting in chains pro

Abstract

In the title compound, C15H13Cl2NO2, the dihedral angle between the aromatic rings is 63.80 (12)°. The conformation may be stabilized by a weak N—H⋯O hydrogen bond. In the crystal structure, a short C—Cl⋯π interaction occurs, with a Cl⋯π separation of 3

Abstract

The title compound, C34H54O5, was synthesized by the reaction of ursolic acid with ethyl chloro­acetate in the presence of DMA. All six-membered rings of the penta­cyclic triterpene skeleton adopt chair conformations. In the crystal structure, mol­ecules are linke

Abstract

The molecule of the title compound, C14H7Cl2NO2, is not planar; the dihedral angle between the mean planes of the chloro­phenyl and benzisoxazole rings is 20.32 (7)°. The carbonyl chloride group is twisted with respect to the benzisoxazole ring by 2.5 (

Abstract

In the title mol­ecule, C15H15ClN2, the dihedral angle between the aromatic is 64.1 (2)°.

Abstract

The asymmetric unit of the title compound, C20H12O2S2, contains two crystallographically independent mol­ecules which differ in the orientations of thienylmethanone units with respect to the naphthalene ring system [dihedral angles of 65.30 (11) and 50.

Abstract

In the title compound, 2C10H7BrO·C4H10N2, the piperazine (pip) mol­ecule displays a chair conformation and is linked to two mol­ecules of 6-bromo-2-naphthol (bno) via O—H⋯N hydrogen bonds. Weak N—H⋯O hydrogen bonds from pip to bno mol­

Abstract

The title compound, C22H18O7, also known as laurentiquinone B, is a new anthraquinone which was isolated from Vismia laurentii, a Cameroonian medicinal plant. The asymmetric unit contains two independent mol­ecules. Each of them contains four fused rings, t

Abstract

The absolute configuration of the title mol­ecule, [Fe(C5H5)(C38H34NP2)]·CHCl3, is R,Rp. The mol­ecular structure is similar to the structure of the solvent-free compound [Fukuzawa, Yamamoto & Kikuchi (

Abstract

In the heteromolecular title compound, C15H10O5·C10H8N2, the two components are linked by O—H⋯N hydrogen bonds to form four-component ring supra­molecular assemblies. These are further inter­connected with neighbouring mol­ecules b