Azide anion encapsulation in a tetraurea receptor

Xiaolei Wang, Chuandong Jia, Xiaojuan Huang, Biao Wu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The azide complex [Na(15-crown-5)]2[L(N3) 2] has been synthesized. X-ray single-crystal diffraction analysis revealed that two orthogonally oriented azide anions are encapsulated in one receptor, each by two opposite urea edges of the square tetreurea ligand through N(urea) - H-N(azide) hydrogen bonding. UV-vis titration confirmed the 1:2 (host/guest) binding mode in solution with slight bathochromic shifts compared to the ligand.

Original languageEnglish
Pages (from-to)1508-1510
Number of pages3
JournalInorganic Chemistry Communications
Volume14
Issue number9
DOIs
Publication statusPublished - Sept 2011
Externally publishedYes

Keywords

  • Anion binding
  • Azide encapsulation
  • NH- N hydrogen bonding
  • Tetraurea receptors

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