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Heterogeneous catalase-like activity of gold(i)–cobalt(iii) metallosupramolecular ionic crystals

Unique heterogeneous catalase-like activity was observed for metallosupramolecular ionic crystals [Au(I) (4)Co(III) (2)(dppe)(2)(d-pen)(4)]X(n) ([1]X(n); dppe = 1,2-bis(diphenylphosphino)ethane; d-pen = d-penicillaminate; X(n) = (Cl(–))(2), (ClO(4) (–))(2), (NO(3) (–))(2) or SO(4) (2–)) consisting o...

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Autores principales: Yamada, Mihoko, Yoshinari, Nobuto, Kuwamura, Naoto, Saito, Toru, Okada, Satoshi, Maddala, Sai Prakash, Harano, Koji, Nakamura, Eiichi, Yamagami, Kohei, Yamanaka, Keisuke, Sekiyama, Akira, Suenobu, Tomoyoshi, Yamada, Yusuke, Konno, Takumi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5433492/
https://www.ncbi.nlm.nih.gov/pubmed/28553503
http://dx.doi.org/10.1039/c6sc04993a
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author Yamada, Mihoko
Yoshinari, Nobuto
Kuwamura, Naoto
Saito, Toru
Okada, Satoshi
Maddala, Sai Prakash
Harano, Koji
Nakamura, Eiichi
Yamagami, Kohei
Yamanaka, Keisuke
Sekiyama, Akira
Suenobu, Tomoyoshi
Yamada, Yusuke
Konno, Takumi
author_facet Yamada, Mihoko
Yoshinari, Nobuto
Kuwamura, Naoto
Saito, Toru
Okada, Satoshi
Maddala, Sai Prakash
Harano, Koji
Nakamura, Eiichi
Yamagami, Kohei
Yamanaka, Keisuke
Sekiyama, Akira
Suenobu, Tomoyoshi
Yamada, Yusuke
Konno, Takumi
author_sort Yamada, Mihoko
collection PubMed
description Unique heterogeneous catalase-like activity was observed for metallosupramolecular ionic crystals [Au(I) (4)Co(III) (2)(dppe)(2)(d-pen)(4)]X(n) ([1]X(n); dppe = 1,2-bis(diphenylphosphino)ethane; d-pen = d-penicillaminate; X(n) = (Cl(–))(2), (ClO(4) (–))(2), (NO(3) (–))(2) or SO(4) (2–)) consisting of Au(I) (4)Co(III) (2) complex cations, [1](2+), and inorganic anions, X(–) or X(2–). Treatment of the ionic crystals with an aqueous H(2)O(2) solution led to considerable O(2) evolution with a high turnover frequency of 1.4 × 10(5) h(–1) for the heterogeneous cobalt complexes, which was dependent on their size and shape as well as the arrangement of cationic and anionic species. These dependencies were rationalized by the presence of cobalt(ii) centers on the crystal surface and their efficient exposure on the (111) plane rather than the (100) plane based on morphological and theoretical studies.
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spelling pubmed-54334922017-05-26 Heterogeneous catalase-like activity of gold(i)–cobalt(iii) metallosupramolecular ionic crystals Yamada, Mihoko Yoshinari, Nobuto Kuwamura, Naoto Saito, Toru Okada, Satoshi Maddala, Sai Prakash Harano, Koji Nakamura, Eiichi Yamagami, Kohei Yamanaka, Keisuke Sekiyama, Akira Suenobu, Tomoyoshi Yamada, Yusuke Konno, Takumi Chem Sci Chemistry Unique heterogeneous catalase-like activity was observed for metallosupramolecular ionic crystals [Au(I) (4)Co(III) (2)(dppe)(2)(d-pen)(4)]X(n) ([1]X(n); dppe = 1,2-bis(diphenylphosphino)ethane; d-pen = d-penicillaminate; X(n) = (Cl(–))(2), (ClO(4) (–))(2), (NO(3) (–))(2) or SO(4) (2–)) consisting of Au(I) (4)Co(III) (2) complex cations, [1](2+), and inorganic anions, X(–) or X(2–). Treatment of the ionic crystals with an aqueous H(2)O(2) solution led to considerable O(2) evolution with a high turnover frequency of 1.4 × 10(5) h(–1) for the heterogeneous cobalt complexes, which was dependent on their size and shape as well as the arrangement of cationic and anionic species. These dependencies were rationalized by the presence of cobalt(ii) centers on the crystal surface and their efficient exposure on the (111) plane rather than the (100) plane based on morphological and theoretical studies. Royal Society of Chemistry 2017-04-01 2017-01-16 /pmc/articles/PMC5433492/ /pubmed/28553503 http://dx.doi.org/10.1039/c6sc04993a Text en This journal is © The Royal Society of Chemistry 2017 http://creativecommons.org/licenses/by/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License (http://creativecommons.org/licenses/by/3.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Chemistry
Yamada, Mihoko
Yoshinari, Nobuto
Kuwamura, Naoto
Saito, Toru
Okada, Satoshi
Maddala, Sai Prakash
Harano, Koji
Nakamura, Eiichi
Yamagami, Kohei
Yamanaka, Keisuke
Sekiyama, Akira
Suenobu, Tomoyoshi
Yamada, Yusuke
Konno, Takumi
Heterogeneous catalase-like activity of gold(i)–cobalt(iii) metallosupramolecular ionic crystals
title Heterogeneous catalase-like activity of gold(i)–cobalt(iii) metallosupramolecular ionic crystals
title_full Heterogeneous catalase-like activity of gold(i)–cobalt(iii) metallosupramolecular ionic crystals
title_fullStr Heterogeneous catalase-like activity of gold(i)–cobalt(iii) metallosupramolecular ionic crystals
title_full_unstemmed Heterogeneous catalase-like activity of gold(i)–cobalt(iii) metallosupramolecular ionic crystals
title_short Heterogeneous catalase-like activity of gold(i)–cobalt(iii) metallosupramolecular ionic crystals
title_sort heterogeneous catalase-like activity of gold(i)–cobalt(iii) metallosupramolecular ionic crystals
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5433492/
https://www.ncbi.nlm.nih.gov/pubmed/28553503
http://dx.doi.org/10.1039/c6sc04993a
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