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Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents

Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents

Published on: May 28, 2014

Small Molecule Activation with N,NR-MIC Platinum Complexes.

Hanpeng Jin¹, Christian Mück-Lichtenfeld², Alexander Hepp¹

¹Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, 48149, Münster, Germany.

Chemistry (Weinheim an Der Bergstrasse, Germany)

|January 14, 2017

Summary

This summary is machine-generated.

Platinum complexes with N,NEt-imidazolide ligands were synthesized. Mononuclear complexes activate hydrogen and carbon disulfide, unlike dinuclear counterparts, revealing unique reactivity in organometallic chemistry.

Keywords:

carbon disulfide hydrogen activation mesoionic carbenes platinum

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A Tripeptide-Stabilized Nanoemulsion of Oleic Acid

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Published on: February 27, 2019

Area of Science:

Organometallic Chemistry
Coordination Chemistry
Catalysis

Background:

Platinum complexes with N-heterocyclic carbene (NHC) ligands are crucial in catalysis.
The synthesis and reactivity of dinuclear vs. mononuclear platinum NHC complexes are not fully understood.
Understanding ligand effects on metal center reactivity is key for catalyst design.

Purpose of the Study:

To synthesize and characterize novel dinuclear and mononuclear platinum-N,NEt-imidazolide complexes.
To investigate the reactivity of these complexes towards elemental hydrogen and carbon disulfide.
To compare the catalytic activity and reaction pathways of dinuclear and mononuclear species.

Main Methods:

Synthesis of platinum complexes via reactions with N,NEt-imidazolide ligands and phosphine linkers.
Characterization of synthesized complexes using spectroscopic techniques (NMR, Mass Spectrometry).
Reactivity studies involving hydrogenolysis and carbon disulfide activation under various conditions.

Main Results:

Dinuclear MIC complexes [2]I2 were formed with dppe and dchpe ligands.
Mononuclear MIC complex [3]I was obtained, which readily splits elemental hydrogen to form hydride complex [4]I and N-ethylimidazole.
Complex [3]I activates carbon disulfide (CS2), forming complex [5]I with unique CS2 coordination.

Conclusions:

Mononuclear platinum-NHC complexes exhibit distinct reactivity compared to their dinuclear counterparts.
The N,NEt-imidazolide ligand facilitates hydrogen splitting and CS2 activation in mononuclear platinum complexes.
These findings offer insights into the development of new platinum-based catalytic systems.