Mono- and Dinuclear Coinage Metal Complexes Supported
by an Imino-Pyridine-NHC Ligand: Structural and Photophysical Studies
Posted on 2019-09-11 - 18:39
A new imino-pyridine-NHC (NHC = N-heterocyclic
carbene) hybrid ligand was accessed through a multistep synthesis,
and its coordination chemistry was examined among coinage metals.
Mononuclear copper, silver, and gold complexes as well as dinuclear
homo- and heterometallic complexes were isolated and fully characterized
by spectroscopic methods as well as X-ray crystallography. A comparative
study of the structural and photophysical properties of the complexes
was performed to get more insight into structure–property relationships.
The photoluminescence (PL) properties were investigated in the solid
state at temperatures between 20 and 295 K, and systematically compared
with those of related complexes bearing a bipyridine-NHC ligand and
previously reported by our group. The PL properties can be finely
“tuned” depending on the coordinated metals, and the
weak emission of the complexes can be traced back to the structural
flexibility of the imino-pyridine-NHC framework.
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Simler, Thomas; Möbius, Karen; Müller, Kerstin; Feuerstein, Thomas J.; Gamer, Michael T.; Lebedkin, Sergei; et al. (2019). Mono- and Dinuclear Coinage Metal Complexes Supported
by an Imino-Pyridine-NHC Ligand: Structural and Photophysical Studies. ACS Publications. Collection. https://doi.org/10.1021/acs.organomet.9b00449
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AUTHORS (8)
TS
Thomas Simler
KM
Karen Möbius
KM
Kerstin Müller
TF
Thomas J. Feuerstein
MG
Michael T. Gamer
SL
Sergei Lebedkin
MK
Manfred M. Kappes
PR
Peter W. Roesky
KEYWORDS
multistep synthesisPL propertiesdinuclear homo295 Kphotophysical propertiesheterometallic complexesDinuclear Coinage Metal ComplexesX-ray crystallographyheterocyclic carbeneImino-Pyridine-NHC Ligandgold complexesMononuclear coppercoordination chemistryspectroscopic methodsPhotophysical Studiescoinage metalsimino-pyridine-NHC frameworkbipyridine-NHC ligand