Highly Stable Water-Soluble Platinum Nanoparticles Stabilized by Hydrophilic N-Heterocyclic Carbenes

AbstractPolyhedral boranes and heteroboranes appear almost exclusively as neutral or anionic species, while the cationic ones are protonated at exoskeletal heteroatoms or they are instable. Here we report the reactivity of 10-vertex closo-dicarbadecaboranes with one or two equivalents of N-heterocyclic carbene to 10-vertex nido mono- and/or bis-carbene adducts, respectively. These complexes easily undergo a reaction with HCl to give cages of stable and water soluble 10-vertex nido-type cations with protonation in the form of a BHB bridge or 10-vertex closo-type cations containing one carbene ligand when originating from closo-1,10-dicarbadecaborane. The reaction of a 10-vertex nido mono-carbene adduct with phosphorus trichloride gives nido-11-vertex 2-phospha-7,8-dicarbaundecaborane, which undergoes an oxidation of the phosphorus atom to P = O, while the product of a bis-carbene adduct reaction is best described as a distorted C2B6H8 fragment bridged by the (BH)2PCl2+ moiety.

Download Full-text

Soluble Platinum Nanoparticles Ligated by Long-Chain N-Heterocyclic Carbenes as Catalysts

Chemistry - A European Journal ◽

10.1002/chem.201703189 ◽

2017 ◽

Vol 23 (52) ◽

pp. 12680-12680 ◽

Cited By ~ 2

Author(s):

Luis M. Martínez-Prieto ◽

Lena Rakers ◽

Angela M. López-Vinasco ◽

Israel Cano ◽

Yannick Coppel ◽

...

Keyword(s):

Platinum Nanoparticles ◽

Heterocyclic Carbenes ◽

Long Chain

Download Full-text

An organometallic approach for the synthesis of water-soluble ruthenium and platinum nanoparticles

Dalton Transactions ◽

10.1039/b917749n ◽

2009 ◽

pp. 10172 ◽

Cited By ~ 36

Author(s):

Pierre-Jean Debouttière ◽

Victor Martinez ◽

Karine Philippot ◽

Bruno Chaudret

Keyword(s):

Platinum Nanoparticles ◽

Water Soluble

Download Full-text

Formation and Characterization of Water-Soluble Platinum Nanoparticles Using a Unique Approach Based on the Hydrosilylation Reaction

Langmuir ◽

10.1021/la036135a ◽

2004 ◽

Vol 20 (12) ◽

pp. 5145-5148 ◽

Cited By ~ 19

Author(s):

Junchao Huang ◽

Chaobin He ◽

Xueming Liu ◽

Yang Xiao ◽

Khine Yi Mya ◽

...

Keyword(s):

Platinum Nanoparticles ◽

Water Soluble ◽

Hydrosilylation Reaction ◽

Unique Approach

Download Full-text

pH-Controlled selective synthesis of lactate from pyruvate with the photoredox system of water-soluble zinc porphyrin, electron mediator and platinum nanoparticles dispersed by polyvinylpyrrolidone

Sustainable Energy & Fuels ◽

10.1039/d1se01399h ◽

2021 ◽

Author(s):

Yu Kita ◽

Yutaka Amao

Keyword(s):

Water Splitting ◽

Organic Synthesis ◽

Platinum Nanoparticles ◽

Water Soluble ◽

Selective Synthesis ◽

Electron Mediator ◽

Catalytic Systems ◽

Zinc Porphyrin ◽

Soluble Zinc ◽

Ph Controlled

Photoredox catalytic systems are attracting widespread attention not only in the fields of water splitting into hydrogen and oxygen or CO2 reduction, but also in the field of organic synthesis...

Download Full-text