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Issue 17, 2018
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Chiral and achiral 1D copper(ii) coordination polymers based on glycolato and chelating aromatic diamine ligands

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Abstract

Achiral glycolic acid and chelating aromatic diamine ligands were employed at room temperature to prepare five 1D copper(II) coordination polymers which were structurally characterized. The polymers 1{[Cu(HG)(dipyam)](HG)} (1) (dipyam = 2,2′-dipyridylamine) and 1[Cu(HG)(ClO4)(NN)] (NN = 2,2′-bipyridine (2), NN = 1,10-phenanthroline (3)) adopt homochiral helical structures in the crystal state and undergo spontaneous chiral resolution in the solid state. On the other hand, the polymers containing bidepronated glycolato ligand G, 1{[Cu(G)(dipyam)]·H2O} (1a), obtained from a solution of 1 in MeOH/iPrOH and 1{[Cu2(μ-G)(ClO4)(H2O)(dipyam)2](ClO4)(H2O)2} (4b) are achirals. Crystals of 4b have been obtained together with crystals of the molecular complex [Cu(HG)(H2O)(dipyam)](ClO4) (4a). Analysis by Hirshfeld surface generation and two-dimensional fingerprinting was carried out to study the nature of the interactions and their contributions towards the crystal packing.

Graphical abstract: Chiral and achiral 1D copper(ii) coordination polymers based on glycolato and chelating aromatic diamine ligands

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Supplementary files

Article information


Submitted
21 Feb 2018
Accepted
25 Mar 2018
First published
27 Mar 2018

CrystEngComm, 2018,20, 2455-2464
Article type
Paper

Chiral and achiral 1D copper(II) coordination polymers based on glycolato and chelating aromatic diamine ligands

R. Carballo, A. Castiñeiras, B. Covelo, A. B. Lago, E. M. Vázquez-López, O. Gómez-Paz, S. Balboa and I. Prieto, CrystEngComm, 2018, 20, 2455
DOI: 10.1039/C8CE00279G

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