Tris(ethane-1,2-di-amine-κ ,')zinc(II) tetra-chlorido-zincate(II).

The title complex, [Zn(CHN)][ZnCl], exists as discrete ions. The [Zn(CHN)] cation exhibits a distorted octa-hedral shape. In the [ZnCl] anion, the Zn atom is in an almost regular tetra-hedral environment.

Crystal structure of phenyl -(3,5-di-methyl-phenyl)carbamate.

The asymmetric unit of the title compound, CHNO, contains two independent mol-ecules ( and ). The di-methyl-phenyl ring, the phenyl ring and the central carbamate N-C(=O)-O group are not coplanar. In mol-ecule , the di-methyl-phenyl and phenyl rings are inclined to the carbamate group mean plane by 27.

Crystal structures of methyl (E)-3-(2-chloro-phen-yl)-2-({2-[(E)-2-nitro-vin-yl]phen-oxy}meth-yl)acrylate and methyl (E)-2-({4-chloro-2-[(E)-2-nitro-vin-yl]phen-oxy}meth-yl)-3-(2-chloro-phen-yl)acrylate.

The title compounds, C19H16ClNO5, (I), and C19H15Cl2NO5, (II), both crystallize in the monoclinic space group P21/n. They differ essentially in the orientation of the methyl acetate group, with the C=O bond directed towards the NO2 group in (I) but away from it in (II). In compound (I), the mean plane of the methyl acrylate unit is planar, with a maximum deviation of 0.

Crystal structure of phenyl N-(4-nitro-phen-yl)carbamate.

The asymmetric unit of the title compound, C13H10N2O4, contains two independent mol-ecules (A and B). The dihedral angle between the aromatic rings is 48.18 (14)° in mol-ecule A and 45.

Crystal structure of 3'-(1H-indole-3-carbon-yl)-1'-methyl-2-oxo-4'-(4-oxo-4H-chromen-3-yl)spiro-[indoline-3,2'-pyrrolidine]-3'-carbo-nitrile.

In the title compound, C31H22N4O4, the pyrrolidine ring adopts a twist conformation on the N-CH2 bond. The indolin-2-one and the 1H-indole rings are nearly planar (r.m.