Fine-tuning the weak-link approach: effect of ligand electron density on the formation of rhodium(I) and iridium(I) metallomacrocycles

Martin S Masar 3rd; Maxim V Ovchinnikov; Chad A Mirkin; Lev N Zakharov; Arnold L Rheingold

doi:10.1021/ic034393p

Fine-tuning the weak-link approach: effect of ligand electron density on the formation of rhodium(I) and iridium(I) metallomacrocycles

Inorg Chem. 2003 Oct 20;42(21):6851-8. doi: 10.1021/ic034393p.

Authors

Martin S Masar 3rd¹, Maxim V Ovchinnikov, Chad A Mirkin, Lev N Zakharov, Arnold L Rheingold

Affiliation

¹ Department of Chemistry and Institute for Nanotechnology, 2145 Sheridan Road, Northwestern University, Evanston, Illinois 60208, USA.

PMID: 14552636
DOI: 10.1021/ic034393p

Abstract

A novel bis(phosphinoalkyl-thioether)arene ligand with a fluorinated aryl group (1,4-(Ph(2)PCH(2)CH(2)S)(2)C(6)F(4)) has been synthesized. This ligand has been used to prepare symmetric bimetallic structures with Rh(I) and Ir(I) metal centers in high yield. Unlike their nonfluorinated counterparts, these complexes can be opened into large macrocyclic structures through straightforward ligand (i.e., carbon monoxide, nitriles, and isocyanides) substitution reactions at the metal-thioether linkage. In addition, the symmetric bimetallic structures have been shown to react with appropriately sized bifunctional aromatic molecules to form three-tiered host-guest structures.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.
Research Support, U.S. Gov't, P.H.S.

MeSH terms

Crystallography, X-Ray
Electrons
Iridium / chemistry*
Ligands
Molecular Structure
Rhodium / chemistry*
Spectrum Analysis

Substances

Ligands
Iridium
Rhodium