First example of mixed azoheterocycles: structural studies of metallo-macrocycle Ag(I) versus tetrahedral Cd(II) complexes of pyridyl-azo-imidazole

T Mathur, S Jasimuddin, H Milton, John Derek Woollins, C Sinha

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Imidazolyl and 3'-pyridyl are linked by azo bond (-N=N-) to synthesize hitherto unknown mixed heterocyclic azo molecules, 2-[(3'-pyridyl)azo]imidazole (3'-PyaiH). Alkylation in presence of NaH has synthesized 1-alkyl-2-[(3-pyridyl)azo]imidazole (3'-PyaiR'). 3'-PyaiR' include three types of N-donor centers: N(imidazole), N(azo) and a peripheral N(pyridine). They bind to Ag+ to form 2:2 metallo-macrocycle, [Ag(3'-PyaiR')](2)(2+), while the reaction with Cd2+ forms Cd(3'-PyaiR')(4)(2+). The complexes are structurally characterized by X-ray diffraction studies. (C) 2004 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)3503-3509
Number of pages7
JournalInorganica Chimica Acta
Volume357
Issue number357
DOIs
Publication statusPublished - 10 Sept 2004

Keywords

  • pyridylazoimidazoles
  • Ag(I)-metallo-macrocycle
  • Cd(II)-tetrakis compound
  • X-ray structure
  • X-RAY-STRUCTURE
  • SILVER(I) COORDINATION POLYMERS
  • SPECTRAL CHARACTERIZATION
  • CRYSTAL-STRUCTURE
  • BRIDGING LIGANDS
  • REDOX PROPERTIES
  • COPPER(I)
  • CHEMISTRY
  • NETWORK
  • SOLVENT

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