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Updated: May 19, 2026

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for Cu(II) Through Microwave Pre-Pyrolysis
Published on: February 12, 2019
The weakly coordinating perchlorate group in bis(N,N'-dimethylethylenediamine-κ2N,N')bis(perchlorato-κO)copper(II)
Silvia Schnitzler1, Mihaela-Diana Şerb, Ulli Englert
1Institut für Anorganische Chemie, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
Abstract:
The crystal structure of the title compound, [Cu(ClO(4))(2)(C(4)H(12)N(2))(2)], (I), is reported at 100, 250 and 400 K. The Cu(II) cation in this complex is coordinated in a distorted octahedral mode characteristic of Jahn-Teller systems. The coordination of the perchlorate ligands via longer, and presumably weaker, axial Cu-O distances varies significantly as a function of temperature. One of the Cu-O distances increases between 100 and 250 K, and one of the Cu-O-Cl angles expands between 250 and 400 K. At all temperatures, the complex forms a two-dimensional N-H···O hydrogen-bond network in the (001) plane.
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