organic compounds
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In the title compound, C11H10O3, there is an intramolecular O—HO hydrogen bond generating an S(6) ring motif. The O atom of the hydroxy group deviates by 0.0200 (1) Å from the benzene ring to which it is attached. The propyne group is almost linear, the C—CC angle being 177.83 (15)°, and is almost coplanar with the benzene ring; the C—C—O—C torsion angle being only −1.1 (2)°. In the crystal, molecules are linked via C—HO hydrogen bonds, forming infinite C(11) chains running parallel to [103]. These chains are linked by a pair of C—HO hydrogen bonds, enclosing R22(8) inversion dimers, forming a corrugated two-dimensional network lying parallel to (103).
organic compounds
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The title compound, C17H20O2, has an E conformation about the bridging C=C bond. The cyclohexene ring adopts an envelope conformation with the dimethyl-substituted C atom as the flap. Its mean plane makes a dihedral angle of 7.20 (12)° with the benzene ring. In the crystal, neighbouring molecules are connected via C—HO hydrogen bonds, forming chains running along the a-axis direction.
organic compounds
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In the title compound, C27H29N3O2, the piperidine ring exists in a chair conformation with an equatorial orientation of the phenyl and methyl substituents. The C—C=N bond angles are significantly different [119.1 (2) and 127.2 (2)°]. The phenyl rings are inclined to one another by 44.90 (14)°, and by 80.85 (13) and 79.62 (12)° to the mean plane of the piperidine ring. The terminal pyridine ring is inclined to the piperidine ring mean plane by 74.79 (15)°. In the crystal, molecules are linked by C—Hπ interactions, forming a three-dimensional network.
organic compounds
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In the title compound, C17H18N2O, the aromatic rings are almost normal to one another, making a dihedral angle of 89.00 (8)°. There is an intramolecular N—HO hydrogen bond in the molecule enclosing an S(6) ring motif. In the crystal, molecules are linked by N—HO hydrogen bonds, forming chains along [010].
organic compounds
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In the title compound, C13H15NOS, the plane of the pyrimidine ring makes a dihedral angle of 54.73 (9)° with that of the o-tolyl ring. The molecule adopts an extended conformation, which is evident from the C—C(=O)—N—Car (ar = aromatic) torsion angle of 178.42 (15)°. In the crystal, molecules are linked via pairs of N—HN hydrogen bonds, forming inversion dimers with an R22(8) ring motif. The dimers are linked by N—HO and C—HO hydrogen bonds, with the O atom accepting three such interactions, forming sheets parallel to (100).
Keywords: crystal structure.
organic compounds
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The title compound, 8,18-dithia-2,6-diaza-13(1,4)-piperidina-1(1,2),4(1,3),7(1,2)-tribenzenaoctadecaphane-10,15-diyne-3,6-dione, C32H30N4O2S2, is composed of a relatively planar bis(2-mercaptophenyl)isophthalamide unit linked to a bridging 1,4-di(but-2-yn-1-yl)piperazine unit, forming a macrocycle. The isophthalamide ring is inclined to the outer mercaptophenyl rings by 8.18 (11) and 5.59 (10)°, while these two rings are inclined to one another by 9.10 (12)°. The piperazine ring adopts a chair conformation. There are two intramolecular N—HS hydrogen bonds generating S(5) ring motifs. In the crystal, molecules are linked via C—HS and C—HO hydrogen bonds, forming slabs lying parallel to (001). An O atom in the isophthalamide group is disordered over two positions with an occupancy ratio of 0.41 (6):0.59 (6).
Keywords: crystal structure.
organic compounds
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In the title compound, C26H19NO, the plane of the aromatic heterocycle makes a dihedral angle of 75.22 (4)° with that of the attached phenyl ring. In the crystal, molecules are connected by C—HO interactions, generating R22(12) dimers. These dimers are further connected by C—Hπ interactions, linking the molecules into chains running along the a-axis direction.
Keywords: crystal structure.