Dirhodium complexes: Determination of absolute configuration by the exciton chirality method using VCD spectroscopy

Gábor Szilvágyi, Balázs Brém, Gábor Báti, László Tölgyesi, Miklós Hollósi, Elemér Vass

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Inherently chiral dinuclear rhodium complexes have been synthesized from the well-known dirhodium(ii)-acetate and chiral/achiral amino acids. These complexes have a twisted paddlewheel structure due to axial chirality. Chiral induction could be observed when the ligands were chiral, opposite to the case of achiral ligands, where a racemic mixture was formed. The racemic mixture was separated by chiral HPLC-ECD. The stereochemical properties of these complexes were determined by VCD spectroscopy supported by theoretical calculations at the DFT level. We present a simple route to determine the absolute configuration by an exciton chirality method using VCD spectroscopy.

Original languageEnglish
Pages (from-to)13137-13144
Number of pages8
JournalDalton Transactions
Volume42
Issue number36
DOIs
Publication statusPublished - Sep 28 2013

ASJC Scopus subject areas

  • Inorganic Chemistry

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