NHC Polymeric Particles Obtained by Self-Assembly and Click Approach of Calix[4]Arene Amphiphiles as Support for Catalytically Active Pd Nanoclusters

A new polymeric NHC carrier was synthesized by sequential supramolecular self-assembly and copper-catalyzed azide-alkyne cycloaddition (CuAAC) of amphiphilic imidazolium calix[4]arenes with octyl lipophilic fragments. Obtained polytriazole-imidazolium particles were found as monodisperse submicron p...

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Autores principales: Vladimir Burilov, Diana Mironova, Elsa Sultanova, Ramila Garipova, Vladimir Evtugyn, Svetlana Solovieva, Igor Antipin
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Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:9e43a4ef94a442abbd681f350237131d2021-11-25T18:27:55ZNHC Polymeric Particles Obtained by Self-Assembly and Click Approach of Calix[4]Arene Amphiphiles as Support for Catalytically Active Pd Nanoclusters10.3390/molecules262268641420-3049https://doaj.org/article/9e43a4ef94a442abbd681f350237131d2021-11-01T00:00:00Zhttps://www.mdpi.com/1420-3049/26/22/6864https://doaj.org/toc/1420-3049A new polymeric NHC carrier was synthesized by sequential supramolecular self-assembly and copper-catalyzed azide-alkyne cycloaddition (CuAAC) of amphiphilic imidazolium calix[4]arenes with octyl lipophilic fragments. Obtained polytriazole-imidazolium particles were found as monodisperse submicron particles, with the average diameter of 236 ± 34 nm and average molecular weight of 1380 ± 96 kDa. Successful CuAAC polymerization has been proved using IR spectroscopy and high-resolution ESI mass spectrometry. Polymeric particles, as well as aggregates made from precursor macrocycles, were decorated by Pd clusters (2 nm) for further catalytic investigations. Pd nanoclusters, supported on the polymeric surface, were found highly catalytically active in the model reduction of <i>p</i>-nitrophenol, giving reaction rates an order of magnitude higher compared to literature examples. The reaction was recycled using the same catalyst five times without any loss of activity.Vladimir BurilovDiana MironovaElsa SultanovaRamila GaripovaVladimir EvtugynSvetlana SolovievaIgor AntipinMDPI AGarticlecalixareneCuAACpolyNHCPd nanoclustersOrganic chemistryQD241-441ENMolecules, Vol 26, Iss 6864, p 6864 (2021)
institution DOAJ
collection DOAJ
language EN
topic calixarene
CuAAC
polyNHC
Pd nanoclusters
Organic chemistry
QD241-441
spellingShingle calixarene
CuAAC
polyNHC
Pd nanoclusters
Organic chemistry
QD241-441
Vladimir Burilov
Diana Mironova
Elsa Sultanova
Ramila Garipova
Vladimir Evtugyn
Svetlana Solovieva
Igor Antipin
NHC Polymeric Particles Obtained by Self-Assembly and Click Approach of Calix[4]Arene Amphiphiles as Support for Catalytically Active Pd Nanoclusters
description A new polymeric NHC carrier was synthesized by sequential supramolecular self-assembly and copper-catalyzed azide-alkyne cycloaddition (CuAAC) of amphiphilic imidazolium calix[4]arenes with octyl lipophilic fragments. Obtained polytriazole-imidazolium particles were found as monodisperse submicron particles, with the average diameter of 236 ± 34 nm and average molecular weight of 1380 ± 96 kDa. Successful CuAAC polymerization has been proved using IR spectroscopy and high-resolution ESI mass spectrometry. Polymeric particles, as well as aggregates made from precursor macrocycles, were decorated by Pd clusters (2 nm) for further catalytic investigations. Pd nanoclusters, supported on the polymeric surface, were found highly catalytically active in the model reduction of <i>p</i>-nitrophenol, giving reaction rates an order of magnitude higher compared to literature examples. The reaction was recycled using the same catalyst five times without any loss of activity.
format article
author Vladimir Burilov
Diana Mironova
Elsa Sultanova
Ramila Garipova
Vladimir Evtugyn
Svetlana Solovieva
Igor Antipin
author_facet Vladimir Burilov
Diana Mironova
Elsa Sultanova
Ramila Garipova
Vladimir Evtugyn
Svetlana Solovieva
Igor Antipin
author_sort Vladimir Burilov
title NHC Polymeric Particles Obtained by Self-Assembly and Click Approach of Calix[4]Arene Amphiphiles as Support for Catalytically Active Pd Nanoclusters
title_short NHC Polymeric Particles Obtained by Self-Assembly and Click Approach of Calix[4]Arene Amphiphiles as Support for Catalytically Active Pd Nanoclusters
title_full NHC Polymeric Particles Obtained by Self-Assembly and Click Approach of Calix[4]Arene Amphiphiles as Support for Catalytically Active Pd Nanoclusters
title_fullStr NHC Polymeric Particles Obtained by Self-Assembly and Click Approach of Calix[4]Arene Amphiphiles as Support for Catalytically Active Pd Nanoclusters
title_full_unstemmed NHC Polymeric Particles Obtained by Self-Assembly and Click Approach of Calix[4]Arene Amphiphiles as Support for Catalytically Active Pd Nanoclusters
title_sort nhc polymeric particles obtained by self-assembly and click approach of calix[4]arene amphiphiles as support for catalytically active pd nanoclusters
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/9e43a4ef94a442abbd681f350237131d
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