Binuclear ruthenium macrocycles formed via the weak-link approach

Meisa S. Khoshbin, Maxim V. Ovchinnikov, Chad A. Mirkin*, Lev H. Zakharov, Arnold L. Rheingold

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

The "weak-link approach" for the synthesis of metallomacrocycles has been used to synthesize a series of novel Ru(II) macrocycles in high yield. RuCl2(PPh3)3 has been reacted with two different phosphino-alkyl-ether hemilabile ligands, 1,4-(PPh2(CH 2)2O)2C6H4 and 1,4-(PPh2(CH2)2OCH2) 2C6H4. The hemilabile bidentate ligand coordinates to Ru(II) centers through both the P and O atoms to form bimetallic "condensed intermediates". The weak Ru-O bonds have been selectively cleaved with CO, 1,2-diaminopropane, and pyridine to yield large open macrocycles. This is the first example of the weak-link approach employed to synthesize macrocycles with Ru, and metal centers in general that have more than four coordination sites.

Original languageEnglish (US)
Pages (from-to)496-501
Number of pages6
JournalInorganic chemistry
Volume44
Issue number3
DOIs
StatePublished - Feb 7 2005

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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