title: A copper(I) coordination polymer incorporation the corrosion inhibitor 1H-benzotriazole: poly[μ3-benzotriazolato-κ(3)N(1):N(2):N(3)-copper(I)].
abstract: The title complex, [Cu(C6H4N3)]n, was synthesized by the reaction of cupric nitrate, 1H-benzotriazole (BTAH) and aqueous ammonia under hydrothermal conditions. The asymmetric unit contains three crystallographically independent Cu(I) cations and two 1H-benzotriazolate ligands. Two of the Cu(I) cations, one with a linear two-coordinated geometry and one with a four-coordinated tetrahedral geometry, are located on sites with crystallographically imposed twofold symmetry. The third Cu(I) cation, with a planar three-coordinated geometry, is on a general position. Two Cu(I) cations are doubly bridged by two BTA(-) ligands to afford a noncentrosymmetric planar [Cu2(BTA)2] subunit, and two [Cu2(BTA)2] subunits are arranged in an antiparallel manner to form a centrosymmetric [Cu2(BTA)2]2 secondary building unit (SBU). The SBUs are connected in a crosswise manner via the sharing of four-coordinated Cu(I) cations, Cu-N bonding and bridging by two-coordinate Cu(I) cations, resulting in a one-dimensional chain along the c axis. These one-dimensional chains are further linked by C-H···π and weak van der Waals interactions to form a three-dimensional supramolecular architecture.
authors.affiliation: College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China.
authors.forename: Jian-Jun
authors.initials: JJ
authors.lastname: Liu
authors.affiliation: College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China.
authors.forename: Zuo-Yin
authors.initials: ZY
authors.lastname: Li
authors.affiliation: College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China.
authors.forename: Xiong
authors.initials: X
authors.lastname: Yuan
authors.affiliation: College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Wang
authors.affiliation: College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China.
authors.forename: Chang-Cang
authors.initials: CC
authors.lastname: Huang
keywords: 1H-benzotriazole; corrosion inhibitor; crystal structure; hydrogen bonding; one-dimensional copper coordination polymer; powder diffraction patterns; π–π interactions