Download citation
Download citation

link to html
In the crystal structure of the title compound, C14H12ClNO2S, the mol­ecules display a trans conformation with respect to the C=N double bond. The dihedral angle between the methyl­sulfonyl benzene and chloro­benzene rings is 59.59 (8)°. The crystal packing is stabilized by weak C—H...O inter­actions and by π–π stacking inter­actions between inversion-related methyl­sulfonyl benzene rings [centroid–centroid distance = 3.8579 (11) Å].

Download citation
Download citation

link to html
In the crystal structure of the title compound, [Ag(NO3)(C15H8N2O2)2], tryptanthrin (indolo[2,1-b]quinazoline-6,12-dione) and silver nitrate form a 2:1 complex. The silver ion is surrounded by two tryptanthrin ligands, each coordinating through the N atoms, with Ag—N bond lengths of 2.247 (3) and 2.264 (3) Å, and an anionic nitrate ligand coordinating through two O atoms, with Ag—O bond lengths of 2.499 (3) and 2.591 (3) Å. The N—Ag—N plane and the O—Ag—O plane are roughly perpendicular, making a dihedral angle of 81.6 (2)°. In the crystal, C—H...O inter­actions between aromatic H atoms and keto and nitrate O atoms as well as π–π inter­actions [centroid-centroid distance = 3.706 (4) Å] give rise to a three-dimensional network.

Download citation
Download citation

link to html
The title compound, C16H12O2, is a coumarin which was isolated from stones of the Chinese traditional medicine Clausena lansium. The pyrone ring is almost planar, with a mean deviation of 0.0135 (4) Å. The benzene ring (A) of the benzopyrone unit forms dihedral angles of 1.82 (5) and 72.86 (2)° with the pyrone ring and the substituent benzene ring, respectively. The crystal structure is stabilized by weak π–π stacking inter­actions, with a minimum centroid–centroid distance between benzene rings of 3.6761 (7) Å.
Follow Acta Cryst. E
Sign up for e-alerts
Follow Acta Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds