Tetra­imidazole­bis(trichloro­acetato)copper(II)

The title compound, [Cu(C₂Cl₃O₂)₂(C₃H₄N₂)₄], was prepared by the reaction of imidazole and trichloro­acetatocopper(II). The Cu^II atom adopts a distorted octa­hedral coordination geometry, binding the N atoms of four imidazole ligands and the carboxyl­ate O atoms of two trichloro­acetate anions. The mol­ecular structure and packing are stabilized by N—H...O hydrogen-bonding inter­actions. Close inter­molecular Cl...Cl contacts [3.498 (3) Å] are also found in the structure.

Dimethyl 2-(2-quinolylmeth­yl)malonate

In the title compound, C₁₅H₁₅NO₄, the quinoline ring system and one of the malonate side chains are essentially coplanar (r.m.s. deviation = 0.0297 Å). The two malonate C—C(=O)—O—CH₃ side chains are oriented at right angles [89.68 (8)°] with respect to each other. The crystal packing is stabilized by weak non-classical inter­molecular C—H...O hydrogen bonds, which link the mol­ecules into dimers about inversion centers.