4.7 Article

Hexa- and octanuclear copper(ii) complexes with a tetraeicosaaza amine macrocycle

Journal

DALTON TRANSACTIONS
Volume 52, Issue 44, Pages 16123-16127

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d3dt02993j

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One hexa- and two octanuclear Cu(ii) complexes were synthesized using different metal salts and a large tetraeicosaaza macrocycle. Characterization using elemental analysis, spectroscopy, crystallography, and magnetic susceptibility measurements revealed the unique coordination modes and nuclearity in these centrosymmetric complexes. In the case of the sulphate complex, both homo- and heterochiral arrangements of the macrocycle around the Cu(II) cations were observed.
One hexa- and two octanuclear Cu(ii) complexes were synthesised from different metal salts and a very large (8 + 8) tetraeicosaaza macrocycle. These nitrate, chloride and sulphate coordination compounds were characterised by taking elemental analysis, spectroscopy, crystallography and magnetic susceptibility measurements. Their crystal structures revealed different interesting coordination modes of Cu(ii) cations and nuclearity in these centrosymmetric complexes. For the sulphate complex two different, homo- vs. heterochiral, arrangements of the same macrocycle L3 around the same Cu(II) cations take place.

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