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Updated: Jul 22, 2026

Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR
Published on: December 16, 2013
A novel three-dimensional copper(II) network via hydrogen bonds: diaquabis
1Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China. lzhang@nankai.edu.cn.
Abstract:
The crystal structure of the title complex, [Cu(C(7)H(8)N(4))(2)(H(2)O)(2)](ClO(4))(2), consists of a discrete centrosymmetric [Cu(C(7)H(8)N(4))(2)(H(2)O)(2)](2+) cation and two perchlorate anions. The Cu(II) centre is six-coordinated by four N donors from the two pyrazole rings [Cu-N 1.998 (2) and 2.032 (3) A] and two O atoms from the water molecules occupying the apical sites [Cu-O 2.459 (3) A]. The coordination geometry of the complex can be described as octahedral. There is a unique three-dimensional network in which the perchlorate units are linked by a combination of strong O-H.O and weak C-H.O hydrogen bonds.
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