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A Novel Light‐Emitting Mixed‐Ligand Iridium( III ) Complex with a Terpyridine‐Poly(ethylene glycol) Macroligand
Author(s) -
Holder Elisabeth,
Marin Veronica,
Meier Michael A. R.,
Schubert Ulrich S.
Publication year - 2004
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200400206
Subject(s) - iridium , ethylene glycol , terpyridine , ligand (biochemistry) , materials science , peg ratio , photochemistry , polymer chemistry , chemistry , organic chemistry , metal , catalysis , biochemistry , receptor , finance , economics
Summary : A monoterpyridine‐poly(ethylene glycol) (mono‐tpy‐PEG) and a novel monoterpyridine‐PEG‐functionalized iridium( III ) complex were successfully synthesized and fully characterized by means of NMR, IR, and UV‐vis spectroscopy, as well as gel permeation chromatography and matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry. The functionalized monoterpyridine iridium( III ) complex was synthesized by a bridge‐splitting reaction of a dimeric iridium( III ) precursor complex using a chelating terpyridine ligand with a poly(ethylene glycol) tail. With this approach, a new class of light‐emitting polymeric materials revealing interesting optical properties was made avaialable.Upon excitation of a spin‐coated film of the iridium( III ) complex prepared here, a yellow emission color (two bands in figure) was observed.