Non-template synthesis of ‘N₄’ macrocyclic imine ligands with variable ring sizes: the importance of intramolecular hydrogen-bonding. X-Ray crystal structures of three macrocyclic and two open-chain ligands

1 January 1980

journal article
Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications

No. 24,p. 1218-1220
https://doi.org/10.1039/c39800001218

Abstract

Di-imine tetra-aza macrocycles with an extensive range of ring sizes can be isolated by simple condensations without recourse to ‘metal-ion template’ or ‘high-dilution’ reactions, provided the rings can form intramolecular hydrogen bonds to reduce unfavourable lone-pair–lone-pair interactions between the nitrogen atoms.

Keywords

HYDROGEN BOND

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Non-template synthesis of ‘N4’ macrocyclic imine ligands with variable ring sizes: the importance of intramolecular hydrogen-bonding. X-Ray crystal structures of three macrocyclic and two open-chain ligands

Abstract

Keywords

Non-template synthesis of ‘N₄’ macrocyclic imine ligands with variable ring sizes: the importance of intramolecular hydrogen-bonding. X-Ray crystal structures of three macrocyclic and two open-chain ligands