Single-Chain Magnets Based on Octacyanotungstate with the Highest Energy Barriers for Cyanide Compounds

By introducing large counter cations as the spacer, two isolated 3, 3-ladder compounds, (Ph(4)P)[Co(II)(3-Mepy)(2.7)(H(2)O)(0.3)W(V)(CN)(8)]·0.6H(2)O (1) and (Ph(4)As)[Co(II)(3-Mepy)(3)W(V)(CN)(8)] (2, 3-Mepy = 3-methylpyridine), were synthesized and characterized. Static and dynamic magnetic charac...

Descripción completa

Detalles Bibliográficos
Autores principales: Wei, Rong-Min, Cao, Fan, Li, Jing, Yang, Li, Han, Yuan, Zhang, Xiu-Ling, Zhang, Zaichao, Wang, Xin-Yi, Song, You
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4829875/
https://www.ncbi.nlm.nih.gov/pubmed/27071451
http://dx.doi.org/10.1038/srep24372
_version_ 1782426814568726528
author Wei, Rong-Min
Cao, Fan
Li, Jing
Yang, Li
Han, Yuan
Zhang, Xiu-Ling
Zhang, Zaichao
Wang, Xin-Yi
Song, You
author_facet Wei, Rong-Min
Cao, Fan
Li, Jing
Yang, Li
Han, Yuan
Zhang, Xiu-Ling
Zhang, Zaichao
Wang, Xin-Yi
Song, You
author_sort Wei, Rong-Min
collection PubMed
description By introducing large counter cations as the spacer, two isolated 3, 3-ladder compounds, (Ph(4)P)[Co(II)(3-Mepy)(2.7)(H(2)O)(0.3)W(V)(CN)(8)]·0.6H(2)O (1) and (Ph(4)As)[Co(II)(3-Mepy)(3)W(V)(CN)(8)] (2, 3-Mepy = 3-methylpyridine), were synthesized and characterized. Static and dynamic magnetic characterizations reveal that compounds 1 and 2 both behave as the single-chain magnets (SCMs) with very high energy barriers: 252(9) K for 1 and 224(7) K for 2, respectively. These two compounds display the highest relaxation barriers for cyano-bridged SCMs and are preceded only by two cobalt(II)-radical compounds among all SCMs. Meanwhile, a large coercive field of 26.2 kOe (1) and 22.6 kOe (2) were observed at 1.8 K.
format Online
Article
Text
id pubmed-4829875
institution National Center for Biotechnology Information
language English
publishDate 2016
publisher Nature Publishing Group
record_format MEDLINE/PubMed
spelling pubmed-48298752016-04-19 Single-Chain Magnets Based on Octacyanotungstate with the Highest Energy Barriers for Cyanide Compounds Wei, Rong-Min Cao, Fan Li, Jing Yang, Li Han, Yuan Zhang, Xiu-Ling Zhang, Zaichao Wang, Xin-Yi Song, You Sci Rep Article By introducing large counter cations as the spacer, two isolated 3, 3-ladder compounds, (Ph(4)P)[Co(II)(3-Mepy)(2.7)(H(2)O)(0.3)W(V)(CN)(8)]·0.6H(2)O (1) and (Ph(4)As)[Co(II)(3-Mepy)(3)W(V)(CN)(8)] (2, 3-Mepy = 3-methylpyridine), were synthesized and characterized. Static and dynamic magnetic characterizations reveal that compounds 1 and 2 both behave as the single-chain magnets (SCMs) with very high energy barriers: 252(9) K for 1 and 224(7) K for 2, respectively. These two compounds display the highest relaxation barriers for cyano-bridged SCMs and are preceded only by two cobalt(II)-radical compounds among all SCMs. Meanwhile, a large coercive field of 26.2 kOe (1) and 22.6 kOe (2) were observed at 1.8 K. Nature Publishing Group 2016-04-13 /pmc/articles/PMC4829875/ /pubmed/27071451 http://dx.doi.org/10.1038/srep24372 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Wei, Rong-Min
Cao, Fan
Li, Jing
Yang, Li
Han, Yuan
Zhang, Xiu-Ling
Zhang, Zaichao
Wang, Xin-Yi
Song, You
Single-Chain Magnets Based on Octacyanotungstate with the Highest Energy Barriers for Cyanide Compounds
title Single-Chain Magnets Based on Octacyanotungstate with the Highest Energy Barriers for Cyanide Compounds
title_full Single-Chain Magnets Based on Octacyanotungstate with the Highest Energy Barriers for Cyanide Compounds
title_fullStr Single-Chain Magnets Based on Octacyanotungstate with the Highest Energy Barriers for Cyanide Compounds
title_full_unstemmed Single-Chain Magnets Based on Octacyanotungstate with the Highest Energy Barriers for Cyanide Compounds
title_short Single-Chain Magnets Based on Octacyanotungstate with the Highest Energy Barriers for Cyanide Compounds
title_sort single-chain magnets based on octacyanotungstate with the highest energy barriers for cyanide compounds
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4829875/
https://www.ncbi.nlm.nih.gov/pubmed/27071451
http://dx.doi.org/10.1038/srep24372
work_keys_str_mv AT weirongmin singlechainmagnetsbasedonoctacyanotungstatewiththehighestenergybarriersforcyanidecompounds
AT caofan singlechainmagnetsbasedonoctacyanotungstatewiththehighestenergybarriersforcyanidecompounds
AT lijing singlechainmagnetsbasedonoctacyanotungstatewiththehighestenergybarriersforcyanidecompounds
AT yangli singlechainmagnetsbasedonoctacyanotungstatewiththehighestenergybarriersforcyanidecompounds
AT hanyuan singlechainmagnetsbasedonoctacyanotungstatewiththehighestenergybarriersforcyanidecompounds
AT zhangxiuling singlechainmagnetsbasedonoctacyanotungstatewiththehighestenergybarriersforcyanidecompounds
AT zhangzaichao singlechainmagnetsbasedonoctacyanotungstatewiththehighestenergybarriersforcyanidecompounds
AT wangxinyi singlechainmagnetsbasedonoctacyanotungstatewiththehighestenergybarriersforcyanidecompounds
AT songyou singlechainmagnetsbasedonoctacyanotungstatewiththehighestenergybarriersforcyanidecompounds

Ejemplares similares