title: catena-Poly[[copper(II)-bis[μ-bis(3,5-dimethyl-1H-pyrazol-4-yl) selenide]] bis(perchlorate)].
abstract: In the title compound, {[Cu(C(10)H(14)N(4)Se)(2)](ClO(4))(2)}(n), the Cu(II) ion is located on a twofold rotation axis and has a tetra-gonally distorted square-planar geometry constituted by four N atoms. A pair of bis(3,5-dimethyl-1H-pyrazol-4-yl) selenide (L) ligands bridges the copper centers into a polymeric chain extending along [001]. The perchlorate anions are involved in inter-molecular N-H⋯O hydrogen bonding, which links the chains into layers parallel to the bc plane.
authors.forename: Maksym
authors.initials: M
authors.lastname: Seredyuk
authors.forename: Matti
authors.initials: M
authors.lastname: Haukka
authors.forename: Vadim A
authors.initials: VA
authors.lastname: Pavlenko
authors.forename: Igor O
authors.initials: IO
authors.lastname: Fritsky