Calix[4]thiacrowns as ditopic hosts for homo- and heterobinuclear accommodation: First report of a chopsticks-type π-coordination

Jai Young Lee, Jongchul Kwon, Chul Soon Park, Ji Eun Lee, Wonbo Sim, Jong Seung Kim, Joobeom Seo, Ii Yoon, Jong Hwa Jung, Shim Sung Lee

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)

Abstract

Calix[4]thiacrowns with hetero-L1 and a homodonor set (L 2) were synthesized and characterized by X-ray analysis. From the reaction of L2 with AgPF6, disilver complex [Ag 2(L2)](PF6)2 (1) was isolated. By comparing 1,3-alternate conformations of L2 and 1, we found a considerable decrease of dihedral angles of two opposite aromatic rings upon complexation. This finding can be explained in terms of the "chopsticks process", which illustrates how Ag+-arene π-coordination occurs. Heterobinuclear complexation of L1 in solution was also observed.

Original languageEnglish
Pages (from-to)493-496
Number of pages4
JournalOrganic Letters
Volume9
Issue number3
DOIs
Publication statusPublished - 2007 Feb 1
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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