title: catena-Poly[[diacetonitrile-copper(I)]-μ-dicyanamido].
abstract: The crystal structure of the title compound, [Cu(C(2)N(3))(C(2)H(3)N)(2)](n), features zigzag chains along the a axis that consist of alternating [Cu(MeCN)(2)] and dicyanamide units, the latter acting as bidentate ligands via both terminal N atoms. The Cu atom shows a slightly distorted tetra-hedral coordination sphere. The anionic and neutral ligands lie on different mirror planes (perpendicular to the b and a axis, respectively), while the Cu atom is situated on their inter-section. The asymmetric unit comprises one fourth of the formula unit.
authors.affiliation: Philipps-Universität Marburg, Fachbereich Chemie, Hans-Meerwein-Strasse, 35032 Marburg,  Germany.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Oelkers
authors.forename: Marion
authors.initials: M
authors.lastname: Stricker
authors.forename: Jörg
authors.initials: J
authors.lastname: Sundermeyer