A new zinc pyromellitate, [(C4N2H12)0.5(NH2(CH3)2][Zn(C10H2O8)]·1.78H2O, with a layered structure

SV Ganesan, Philip Lightfoot, Srinivasan Natarajan

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

A hydrothermal reaction of ZnO, HCl, pyromellitic acid, piperazine and water/DMF mixture gave rise to a layered Zn coordination polymer. The structure, determined by single crystal XRD, consists of a network of ZnO4 centers, tetrahedrally coordinated by pyromellitate anions giving rise to a two-dimensional sheet structure. The connectivity resembles a 4-connected network in which each Zn atom is connected to four BTEC anions and each BTEC anion is linked to four Zn2+ ions. The DMF, under hydrothermal conditions, has transformed into dimethylamine. Both the acid and polymer shows photoluminescence with the main emission band for the polymer at about 390 nm (lambda(ex) = 338 nm). Our continuing investigations clearly reveal that it is profitable to explore amine templated metal-organic frameworks. (C) 2004 Elsevier SAS. All rights reserved.

Original languageEnglish
Pages (from-to)757-762
Number of pages6
JournalSolid State Sciences
Volume6
DOIs
Publication statusPublished - Jul 2004

Keywords

  • zinc
  • hydrothermal
  • pyromellitate
  • two-dimensional
  • BTC(2-)=1,2,4,5-BENZENETETRACARBOXYLIC ACID DIANION
  • HEXAAZA MACROCYCLIC COMPLEXES
  • COORDINATION POLYMERS
  • CRYSTAL-STRUCTURE
  • HYDROTHERMAL SYNTHESIS
  • 1,2,4,5-BENZENETETRACARBOXYLIC ACID
  • MAGNETIC-PROPERTIES
  • COPPER(II)
  • FRAMEWORK
  • CLUSTERS

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