13-Benzyl-4,11-dihy-droxy-1,8-diphen-yl-2,9-di-thia-13-aza-dispiro-[4.1.4.3]tetra-decan-6-one.

In the title compound, CHNOS, the piperidine ring adopts a distorted chair conformation. The thio-phene rings have twisted conformations about the C-C bonds. The mean plane of the piperidine ring makes a near orthogonal conformation with the toluene ring.

Crystal structure and Hirshfeld surface analysis of 1-methyl-4-(2-methyl-10-benzo[]thieno[2,3-][1,4]diazepin-4-yl)piperazin-1-ium 2,5-di-hydroxy-benzoate propan-2-ol monosolvate.

The asymmetric unit of the title salt, CHNS·CHO ·CHOH, consists of an olanzapinium cation, an independent 2,5-di-hydroxy-benzoate anion and a solvent isopropyl alcohol mol-ecule. The central seven-membered heterocycle is in a boat conformation, while the piperazine ring displays a distorted chair conformation. The dihedral angle between the benzene and thiene rings flanking the diazepine ring is 52.

Crystal and geometry-optimized structure, and Hirshfeld surface analysis of 1-(2-bromo-eth-yl)indoline-2,3-dione.

In the title compound, CHBrNO, the isatin (1-indole-2,3-dione) moiety is nearly planar (r.m.s.

Two new isatin derivatives: 1-benzyl-4,5,6-trimethoxyindoline-2,3-dione and 1-benzyl-5-fluoroindoline-2,3-dione.

Isatin (1H-indole-2,3-dione) derivatives represent synthetically useful substrates which can be used to prepare a broad range of heterocyclic compounds. In the title compounds, C18H17NO5, (I), and C15H10FNO2, (II), the isatin ring systems are planar and form a dihedral angle of 73.04 (7)° in (I) and 76.

Crystal structure of 4-amino-1-(4-methyl-benz-yl)pyridinium bromide.

The title mol-ecular salt, C13H15N2 (+)·Br(-), crystallized with two independent ion pairs (A and B) in the asymmetric unit. In the cations, the planes of the pyridine and benzene rings are inclined to one another by 79.32 (8) and 82.