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Updated: Jul 14, 2025

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
Published on: March 20, 2017
High-yielding synthesis of cyclometallated iridium complexes with hydrogen bond-rich ligands
Marta Tomás Piqueras1, Holly J Howe1, Sarah A Englehart1
1Department of Chemistry, University of New Brunswick, Fredericton, NB, Canada. b.blight@unb.ca.
Abstract:
A library of cyclometallated iridium(III) complexes with a strong H-bonding motif in their ancillary ligand was synthesized, characterized and their photophysical properties measured. Demonstrated herein is a general synthetic high yield procedure for these compounds. We ascribe these yields to the use of an intermediary primer ligand. This de novo strategy circumnavigates the standard synthetic issues of H-bond rich ligand precursors (self-aggregation and poor solubility in organic solvents).
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