X-ray Crystal Structures of Trans-6,13-dimethyl-6,13-diamino-1,4,8,11-tetraazacyclotetradecane.6HCl.2H2O and Its Condensation Product With Pyridine-2-carboxaldehyde'

SL Jain, P Bhattacharyya, SA McLellan, David Trevor Richens, Philip Lightfoot, Alexandra Martha Zoya Slawin, John Derek Woollins

Research output: Contribution to journalArticlepeer-review

Abstract

The X-ray crystal structures of trans-6,13-dimethyl-6,13-diamino-1,4,8,11-tetraazacyclotetradecane hexahydrochloride dihydrate (trans-diammac.6HCl.2H(2)O) and the product 1 derived by condensation of trans-diammac with pyridine-2-carboxaldehyde, have been determined. For 1 intramolecular attack of macrocycle amine nitrogen atoms on the C=N bonds of the intermediate diimine gives a ring-closed tautomeric form, which comprises two imidazolidine rings fused to the macrocycle.

Original languageEnglish
Pages (from-to)234-236
Number of pages3
JournalJournal of Chemical Research
Issue number3
Publication statusPublished - Mar 2004

Keywords

  • macrocycle
  • diammac
  • X-ray crystallography
  • NMR
  • METAL-IONS
  • LIGAND
  • COBALT(III)
  • COMPLEXES
  • CATIONS

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