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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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) |
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calixarene CuAAC polyNHC Pd nanoclusters Organic chemistry QD241-441 |
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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 |
work_keys_str_mv |
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