Probing the Axial Distortion Effect on the Magnetic Anisotropy of Octahedral Co(II) Complexes
Three mononuclear octahedral Co(II) complexes are reported, [Co(py) (SCN) ] ( ), [Co(py) (Cl) ]·H O ( ), and [Co(py) (Br) ] ( ), that exhibit different distortions with compression ( ) or elongation ( and ) of the axial positions. Easy plane magnetic anisotropy was confirmed by magnetic, HF-EPR, and...
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| Veröffentlicht in: | Inorganic chemistry 2020-06, Vol.59 (11), p.7622-7630 |
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| container_title | Inorganic chemistry |
| container_volume | 59 |
| creator | Deng, Yi-Fei Singh, Mukesh Kumar Gan, Dexuan Xiao, Tongtong Wang, Yinuo Liu, Shihao Wang, Zhenxing Ouyang, Zhongwen Zhang, Yuan-Zhu Dunbar, Kim R |
| description | Three mononuclear octahedral Co(II) complexes are reported, [Co(py)
(SCN)
] (
), [Co(py)
(Cl)
]·H
O (
), and [Co(py)
(Br)
] (
), that exhibit different distortions with compression (
) or elongation (
and
) of the axial positions. Easy plane magnetic anisotropy was confirmed by magnetic, HF-EPR, and computational studies for all complexes. Further analyses indicate that both the sign and magnitude of zero-field splitting parameters experience a significant change (
≥ ±150 cm
) by tuning of the axial and equatorial ligand field strength. Slow magnetic relaxation is observed for all compounds which is dominated by the Raman process involving both acoustic and optical phonons. |
| doi_str_mv | 10.1021/acs.inorgchem.0c00531 |
| format | Article |
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(SCN)
] (
), [Co(py)
(Cl)
]·H
O (
), and [Co(py)
(Br)
] (
), that exhibit different distortions with compression (
) or elongation (
and
) of the axial positions. Easy plane magnetic anisotropy was confirmed by magnetic, HF-EPR, and computational studies for all complexes. Further analyses indicate that both the sign and magnitude of zero-field splitting parameters experience a significant change (
≥ ±150 cm
) by tuning of the axial and equatorial ligand field strength. Slow magnetic relaxation is observed for all compounds which is dominated by the Raman process involving both acoustic and optical phonons.</description><identifier>ISSN: 0020-1669</identifier><identifier>EISSN: 1520-510X</identifier><identifier>DOI: 10.1021/acs.inorgchem.0c00531</identifier><identifier>PMID: 32391690</identifier><language>eng</language><publisher>United States</publisher><ispartof>Inorganic chemistry, 2020-06, Vol.59 (11), p.7622-7630</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c375t-b980c98e0b1ec90f52f01398cde9cc667ecfdb8cf5783566fd3004634422e70c3</citedby><cites>FETCH-LOGICAL-c375t-b980c98e0b1ec90f52f01398cde9cc667ecfdb8cf5783566fd3004634422e70c3</cites><orcidid>0000-0003-2199-4684 ; 0000-0001-5728-7805 ; 0000-0002-1676-2427</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,2752,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32391690$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Deng, Yi-Fei</creatorcontrib><creatorcontrib>Singh, Mukesh Kumar</creatorcontrib><creatorcontrib>Gan, Dexuan</creatorcontrib><creatorcontrib>Xiao, Tongtong</creatorcontrib><creatorcontrib>Wang, Yinuo</creatorcontrib><creatorcontrib>Liu, Shihao</creatorcontrib><creatorcontrib>Wang, Zhenxing</creatorcontrib><creatorcontrib>Ouyang, Zhongwen</creatorcontrib><creatorcontrib>Zhang, Yuan-Zhu</creatorcontrib><creatorcontrib>Dunbar, Kim R</creatorcontrib><title>Probing the Axial Distortion Effect on the Magnetic Anisotropy of Octahedral Co(II) Complexes</title><title>Inorganic chemistry</title><addtitle>Inorg Chem</addtitle><description>Three mononuclear octahedral Co(II) complexes are reported, [Co(py)
(SCN)
] (
), [Co(py)
(Cl)
]·H
O (
), and [Co(py)
(Br)
] (
), that exhibit different distortions with compression (
) or elongation (
and
) of the axial positions. Easy plane magnetic anisotropy was confirmed by magnetic, HF-EPR, and computational studies for all complexes. Further analyses indicate that both the sign and magnitude of zero-field splitting parameters experience a significant change (
≥ ±150 cm
) by tuning of the axial and equatorial ligand field strength. Slow magnetic relaxation is observed for all compounds which is dominated by the Raman process involving both acoustic and optical phonons.</description><issn>0020-1669</issn><issn>1520-510X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNo9kM1OwzAQhC0EglJ4BFCOcGhZx7ETH6vyV6kIDiBxQVGyWbdGSVxsV4K3J4jCaUbamVnpY-yMw5RDyq8qDFPbO7_CNXVTQAAp-B4bcZnCRHJ43WcjgMFzpfQROw7hHQC0yNQhOxKp0FxpGLG3J-9q26-SuKZk9mmrNrm2ITofreuTG2MIYzK4n_NDteopWkxmvQ0uerf5SpxJHjFWa2r8UJ27i8XicpBu09InhRN2YKo20OlOx-zl9uZ5fj9ZPt4t5rPlBEUu46TWBaAuCGpOqMHI1AAXusCGNKJSOaFp6gKNzAshlTKNAMiUyLI0pRxQjNnF7-7Gu48thVh2NiC1bdWT24YyzYCD5rnMh6j8jaJ3IXgy5cbbrvJfJYfyh2w5kC3_yZY7skPvfPdiW3fU_Lf-UIpvGwR4Rw</recordid><startdate>20200601</startdate><enddate>20200601</enddate><creator>Deng, Yi-Fei</creator><creator>Singh, Mukesh Kumar</creator><creator>Gan, Dexuan</creator><creator>Xiao, Tongtong</creator><creator>Wang, Yinuo</creator><creator>Liu, Shihao</creator><creator>Wang, Zhenxing</creator><creator>Ouyang, Zhongwen</creator><creator>Zhang, Yuan-Zhu</creator><creator>Dunbar, Kim R</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-2199-4684</orcidid><orcidid>https://orcid.org/0000-0001-5728-7805</orcidid><orcidid>https://orcid.org/0000-0002-1676-2427</orcidid></search><sort><creationdate>20200601</creationdate><title>Probing the Axial Distortion Effect on the Magnetic Anisotropy of Octahedral Co(II) Complexes</title><author>Deng, Yi-Fei ; Singh, Mukesh Kumar ; Gan, Dexuan ; Xiao, Tongtong ; Wang, Yinuo ; Liu, Shihao ; Wang, Zhenxing ; Ouyang, Zhongwen ; Zhang, Yuan-Zhu ; Dunbar, Kim R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c375t-b980c98e0b1ec90f52f01398cde9cc667ecfdb8cf5783566fd3004634422e70c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Deng, Yi-Fei</creatorcontrib><creatorcontrib>Singh, Mukesh Kumar</creatorcontrib><creatorcontrib>Gan, Dexuan</creatorcontrib><creatorcontrib>Xiao, Tongtong</creatorcontrib><creatorcontrib>Wang, Yinuo</creatorcontrib><creatorcontrib>Liu, Shihao</creatorcontrib><creatorcontrib>Wang, Zhenxing</creatorcontrib><creatorcontrib>Ouyang, Zhongwen</creatorcontrib><creatorcontrib>Zhang, Yuan-Zhu</creatorcontrib><creatorcontrib>Dunbar, Kim R</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Inorganic chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Deng, Yi-Fei</au><au>Singh, Mukesh Kumar</au><au>Gan, Dexuan</au><au>Xiao, Tongtong</au><au>Wang, Yinuo</au><au>Liu, Shihao</au><au>Wang, Zhenxing</au><au>Ouyang, Zhongwen</au><au>Zhang, Yuan-Zhu</au><au>Dunbar, Kim R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Probing the Axial Distortion Effect on the Magnetic Anisotropy of Octahedral Co(II) Complexes</atitle><jtitle>Inorganic chemistry</jtitle><addtitle>Inorg Chem</addtitle><date>2020-06-01</date><risdate>2020</risdate><volume>59</volume><issue>11</issue><spage>7622</spage><epage>7630</epage><pages>7622-7630</pages><issn>0020-1669</issn><eissn>1520-510X</eissn><abstract>Three mononuclear octahedral Co(II) complexes are reported, [Co(py)
(SCN)
] (
), [Co(py)
(Cl)
]·H
O (
), and [Co(py)
(Br)
] (
), that exhibit different distortions with compression (
) or elongation (
and
) of the axial positions. Easy plane magnetic anisotropy was confirmed by magnetic, HF-EPR, and computational studies for all complexes. Further analyses indicate that both the sign and magnitude of zero-field splitting parameters experience a significant change (
≥ ±150 cm
) by tuning of the axial and equatorial ligand field strength. Slow magnetic relaxation is observed for all compounds which is dominated by the Raman process involving both acoustic and optical phonons.</abstract><cop>United States</cop><pmid>32391690</pmid><doi>10.1021/acs.inorgchem.0c00531</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-2199-4684</orcidid><orcidid>https://orcid.org/0000-0001-5728-7805</orcidid><orcidid>https://orcid.org/0000-0002-1676-2427</orcidid></addata></record> |
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| source | ACS Journals: American Chemical Society Web Editions |
| title | Probing the Axial Distortion Effect on the Magnetic Anisotropy of Octahedral Co(II) Complexes |
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