SPECIFIC NON-VALENT IODINE…CHLORINE INTERACTIONS IN THE STRUCTURES OF COPPER(II) CHLORIDE COMPLEXES WITH BIS(3,5-DIMETHYL-4-IODOPYRAZOL-1-YL)METHANE
Copper(II) chloride complexes with bis(3,5-dimethyl-4-iodopyrazol-1-yl)methane (L) with a composition of CuLCl<sub>2</sub> (1), [Cu<sub>2</sub>(μ<sub>2</sub>-Cl)<sub>2</sub>L<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>]Cl<sub>2</sub>·2(CH<sub>3</sub>)<sub>2</sub>CO (2), and [Cu<sub>3</sub>(μ<sub>2</sub>-Cl)<sub>6</sub>L<sub>2</sub>]·(CH<sub>3</sub>)<sub>2</sub>CO (3) are synthesized. Single crystal X-ray diffraction is used to determine the molecular and crystal structures of these compounds. In the structures of compounds 2 and 3, shortened non-valent I…Cl contacts with a length of 3.222(1)-3.439(2) Å are found. They involve uncoordinated and coordinated chloride ions and iodine atoms of organic ligands.