Tetrakis(μ-6-ammonio­hexanoato-1κO:2κO′)­bis­[chloro­copper(II)] dichloride tetrahydrate

The title complex, [Cu₂(C₆H₁₃NO₂)₄Cl₂]Cl₂·4H₂O, has a centrosymmetric, dimeric and dicationic tetracarboxylatodicopper(II) core with apical positions occupied by chloride. The positive charge is balanced by two non-coordinating chlorides that, together with four uncoordinated water mol­ecules per dimeric unit, are involved in extensive hydrogen bonding, leading to a cohesive crystal structure.

catena-Poly[[[bis­(3-amino­pyridine-κN)copper(II)]-di-μ-chloro] hydrate]

The title compound, {[CuCl₂(C₅H₆N₂)₂]·H₂O}_n, comprises centrosymmetric mononuclear CuCl₂L₂ (L = 3-amino­pyridine) units, with a trans geometry of the ligands, connected into infinite linear chains through bridging chloride ligands. The chains are oriented along the c axis and form channels, which are occupied by disordered water mol­ecules.