Dinuclear palladium complexes of pyrazolato-bridged imidazolium- and NHC-ligands: Synthesis and characterization

Stefan A. Reindl; Alexander Pöthig; Benjamin Hofmann; Wolfgang A. Herrmann; Fritz E. Kühn

doi:10.1016/j.jorganchem.2014.03.026

Dinuclear palladium complexes of pyrazolato-bridged imidazolium- and NHC-ligands: Synthesis and characterization

Stefan A. Reindl
, Alexander Pöthig
, Benjamin Hofmann
, Wolfgang A. Herrmann
, Fritz E. Kühn

Technical University of Munich

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The reactions of dinuclear palladium precursors with the pyrazolato-bridged bis(imidazolium) salt 3,5-bis(methylimidazolium-1-ylmethyl]-1H-pyrazole bis(hexafluorophosphate) at different conditions are investigated to further explore the scope of this ligand class towards multinuclear complexes. Depending on the reaction conditions, in dichloromethane a dinuclear twofold μ-pyrazolato bridged bis(imidazolium) complex has been selectively synthesized, whereas the corresponding double μ-pyrazolato bridged bis(NHC) complex was obtained when using acetonitrile as solvent. Both complexes were characterized by NMR, elemental analysis and single crystal X-ray diffraction.

Original language	English
Pages (from-to)	130-136
Number of pages	7
Journal	Journal of Organometallic Chemistry
Volume	775
DOIs	https://doi.org/10.1016/j.jorganchem.2014.03.026
State	Published - 1 Jan 2015

Keywords

Dinuclear
Imidazolium
NHC
Pd complexes
Pyrazolato-bridged

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10.1016/j.jorganchem.2014.03.026

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title = "Dinuclear palladium complexes of pyrazolato-bridged imidazolium- and NHC-ligands: Synthesis and characterization",

abstract = "The reactions of dinuclear palladium precursors with the pyrazolato-bridged bis(imidazolium) salt 3,5-bis(methylimidazolium-1-ylmethyl]-1H-pyrazole bis(hexafluorophosphate) at different conditions are investigated to further explore the scope of this ligand class towards multinuclear complexes. Depending on the reaction conditions, in dichloromethane a dinuclear twofold μ-pyrazolato bridged bis(imidazolium) complex has been selectively synthesized, whereas the corresponding double μ-pyrazolato bridged bis(NHC) complex was obtained when using acetonitrile as solvent. Both complexes were characterized by NMR, elemental analysis and single crystal X-ray diffraction.",

keywords = "Dinuclear, Imidazolium, NHC, Pd complexes, Pyrazolato-bridged",

author = "Reindl, \{Stefan A.\} and Alexander P{\"o}thig and Benjamin Hofmann and Herrmann, \{Wolfgang A.\} and K{\"u}hn, \{Fritz E.\}",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier B.V.",

year = "2015",

month = jan,

day = "1",

doi = "10.1016/j.jorganchem.2014.03.026",

language = "English",

volume = "775",

pages = "130--136",

journal = "Journal of Organometallic Chemistry",

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TY - JOUR

T1 - Dinuclear palladium complexes of pyrazolato-bridged imidazolium- and NHC-ligands

T2 - Synthesis and characterization

AU - Reindl, Stefan A.

AU - Pöthig, Alexander

AU - Hofmann, Benjamin

AU - Herrmann, Wolfgang A.

AU - Kühn, Fritz E.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - The reactions of dinuclear palladium precursors with the pyrazolato-bridged bis(imidazolium) salt 3,5-bis(methylimidazolium-1-ylmethyl]-1H-pyrazole bis(hexafluorophosphate) at different conditions are investigated to further explore the scope of this ligand class towards multinuclear complexes. Depending on the reaction conditions, in dichloromethane a dinuclear twofold μ-pyrazolato bridged bis(imidazolium) complex has been selectively synthesized, whereas the corresponding double μ-pyrazolato bridged bis(NHC) complex was obtained when using acetonitrile as solvent. Both complexes were characterized by NMR, elemental analysis and single crystal X-ray diffraction.

AB - The reactions of dinuclear palladium precursors with the pyrazolato-bridged bis(imidazolium) salt 3,5-bis(methylimidazolium-1-ylmethyl]-1H-pyrazole bis(hexafluorophosphate) at different conditions are investigated to further explore the scope of this ligand class towards multinuclear complexes. Depending on the reaction conditions, in dichloromethane a dinuclear twofold μ-pyrazolato bridged bis(imidazolium) complex has been selectively synthesized, whereas the corresponding double μ-pyrazolato bridged bis(NHC) complex was obtained when using acetonitrile as solvent. Both complexes were characterized by NMR, elemental analysis and single crystal X-ray diffraction.

KW - Dinuclear

KW - Imidazolium

KW - NHC

KW - Pd complexes

KW - Pyrazolato-bridged

UR - https://www.scopus.com/pages/publications/84915737454

U2 - 10.1016/j.jorganchem.2014.03.026

DO - 10.1016/j.jorganchem.2014.03.026

M3 - Article

AN - SCOPUS:84915737454

SN - 0022-328X

VL - 775

SP - 130

EP - 136

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

ER -

Dinuclear palladium complexes of pyrazolato-bridged imidazolium- and NHC-ligands: Synthesis and characterization

Abstract

Keywords

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