Structural Chemistry

, Volume 26, Issue 5–6, pp 1467–1471

Structural characterization of a complex derived from lead(II) perchlorate and acridono-18-crown-6 ether

  • Tamás Németh
  • Ádám Golcs
  • Ibolya Leveles
  • Tünde Tóth
  • Beáta G. Vértessy
  • Péter Huszthy
Original Research

Abstract

This paper describes the X-ray crystal structure of a complex of acridono-18-crown-6 ether 3 and lead(II) perchlorate. The structure shows a π–π bonded heterodimer in the crystal. One part of the dimer moves to 9-hydroxyacridine tautomeric form upon lead(II) complexation, in which the lead(II) ion is eight-coordinated and fits well into the cavity of the macrocycle. The other part of the dimer stays in the 9(10H)-acridone tautomeric form, which favors water complexation. The average bond distance of the two tricyclic units (3.5 Å) indicates a strong π–π interaction. The X-ray studies also revealed a cation–π interaction between lead(II) and the electron-rich acridone moiety.

Keywords

Crown ether Acridone Lead(II) complexation X-ray analysis π–π interaction Cation–π interaction 

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Tamás Németh
    • 1
  • Ádám Golcs
    • 1
  • Ibolya Leveles
    • 2
    • 3
  • Tünde Tóth
    • 1
  • Beáta G. Vértessy
    • 2
    • 3
  • Péter Huszthy
    • 1
  1. 1.Department of Organic Chemistry and TechnologyBudapest University of Technology and EconomicsBudapestHungary
  2. 2.Institute of Enzymology, RCNSHungarian Academy of SciencesBudapestHungary
  3. 3.Department of Applied Biotechnology and Food SciencesBudapest University of Technology and EconomicsBudapestHungary

Personalised recommendations