Application of the π-accepting Ability Parameter of N-heterocyclic Carbene Ligands in Iridium Complexes for Signal Amplification by Reversible Exchange (SABRE)

Overview

Journal Dalton Trans

Publisher Royal Society of Chemistry

Specialty Chemistry

Date 2015 Aug 6

PMID 26243153

Citations 13

Authors

Bram J A van Weerdenburg

Nan Eshuis

Marco Tessari

Floris P J T Rutjes

Martin C Feiters

Affiliations

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Abstract

The new π-accepting ability parameter (PAAP) appears to be the best tool to analyse the electronic properties of NHC ligands in [Ir(H)2(NHC)(Py)3](+) complexes for SABRE. Together with the buried volume, the efficiency of hyperpolarisation transfer in SABRE, depending on the exchange rate of pyridine, can be described.

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