title: Bis{2-[bis-(3,5-dimethyl-1H-pyrazol-1-yl-κN)meth-yl]pyridine-κN}copper(II) dinitrate.
abstract: In the mononuclear title complex, [Cu(C(16)H(19)N(5))(2)](NO(3))(2), the Cu(II) ion is located on a twofold rotation axis and is six-coordinated by six N atoms from two 2-[bis-(3,5-dimethyl-1H-pyrazol-1-yl)meth-yl]pyridine ligands, forming a distorted octa-hedral geometry. In the crystal, mol-ecules are linked by weak C-H⋯O inter-actions.
authors.affiliation: Key Laboratory of Polymer Materials of Gansu Province, Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070,  People's Republic of China.
authors.forename: Jia-Cheng
authors.initials: JC
authors.lastname: Liu
authors.forename: Guo-Zhe
authors.initials: GZ
authors.lastname: Guo
authors.forename: Chao-Hu
authors.initials: CH
authors.lastname: Xiao
authors.forename: Xue-Yan
authors.initials: XY
authors.lastname: Song
authors.forename: Meng
authors.initials: M
authors.lastname: Li