Rotational Correlation Times of Tris(acetylacetonato)cobalt(III) in Various Organic Solvents by NMR Relaxation Measurements
NMR relaxation times of the dual-specific nuclei of metal cobalt-59 and ligand methine carbon-13 for tris(2,4-pentanedionato)cobalt(III), which is commonly named as tris(acetylacetonato)cobalt(III), [Co(acac) 3 ], in four organic solvents, acetonitrile, dichloromethane, chloroform, and benzene, have...
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| Veröffentlicht in: | Journal of solution chemistry 2023-10, Vol.52 (10), p.1117-1128 |
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| creator | Kanakubo, Mitsuhiro Inoue, Naoko Ikeuchi, Haruko Satô, Gen P. |
| description | NMR relaxation times of the dual-specific nuclei of metal cobalt-59 and ligand methine carbon-13 for tris(2,4-pentanedionato)cobalt(III), which is commonly named as tris(acetylacetonato)cobalt(III), [Co(acac)
3
], in four organic solvents, acetonitrile, dichloromethane, chloroform, and benzene, have been measured at several temperatures. The rotational correlation times of complex molecules in different solvents, obtained from the NMR relaxation times, can be semi-quantitatively described by the hydrodynamic Debye–Einstein–Stokes (DES) model. However, the slight deviations from the DES model were observed dependent on the kind of solvents, where the effective rotational volume increased in the order of C
6
H
6
~ CH
3
CN |
| doi_str_mv | 10.1007/s10953-023-01300-4 |
| format | Article |
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3
], in four organic solvents, acetonitrile, dichloromethane, chloroform, and benzene, have been measured at several temperatures. The rotational correlation times of complex molecules in different solvents, obtained from the NMR relaxation times, can be semi-quantitatively described by the hydrodynamic Debye–Einstein–Stokes (DES) model. However, the slight deviations from the DES model were observed dependent on the kind of solvents, where the effective rotational volume increased in the order of C
6
H
6
~ CH
3
CN < CH
2
Cl
2
< CDCl
3
. In chloroform solution, where two solvent molecules are specifically bound to [Co(acac)
3
] in the ligands’ hollows, the complex molecule can rotate accompanying the chloroform molecules solvated and/or the friction in the outer coordination sphere can be increased by the specific interactions in view of the larger effective rotational volume. The present results indicate that the rotational dynamics of [Co(acac)
3
] in solution is quite sensitive to the solute–solvent interactions in the outer coordination sphere as well as the viscosity of solution.</description><identifier>ISSN: 0095-9782</identifier><identifier>EISSN: 1572-8927</identifier><identifier>DOI: 10.1007/s10953-023-01300-4</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Acetonitrile ; Benzene ; Carbon 13 ; Chemistry ; Chemistry and Materials Science ; Chloroform ; Cobalt ; Condensed Matter Physics ; Coordination ; Dichloromethane ; Geochemistry ; Industrial Chemistry/Chemical Engineering ; Inorganic Chemistry ; Ligands ; NMR ; Nuclear magnetic resonance ; Oceanography ; Physical Chemistry ; Solvents</subject><ispartof>Journal of solution chemistry, 2023-10, Vol.52 (10), p.1117-1128</ispartof><rights>The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c319t-8a44ad0ee089fd830b0b675bf2b1f1c91f83ea4c6db965b4651ce9306b91ff003</citedby><cites>FETCH-LOGICAL-c319t-8a44ad0ee089fd830b0b675bf2b1f1c91f83ea4c6db965b4651ce9306b91ff003</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10953-023-01300-4$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10953-023-01300-4$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,778,782,27907,27908,41471,42540,51302</link.rule.ids></links><search><creatorcontrib>Kanakubo, Mitsuhiro</creatorcontrib><creatorcontrib>Inoue, Naoko</creatorcontrib><creatorcontrib>Ikeuchi, Haruko</creatorcontrib><creatorcontrib>Satô, Gen P.</creatorcontrib><title>Rotational Correlation Times of Tris(acetylacetonato)cobalt(III) in Various Organic Solvents by NMR Relaxation Measurements</title><title>Journal of solution chemistry</title><addtitle>J Solution Chem</addtitle><description>NMR relaxation times of the dual-specific nuclei of metal cobalt-59 and ligand methine carbon-13 for tris(2,4-pentanedionato)cobalt(III), which is commonly named as tris(acetylacetonato)cobalt(III), [Co(acac)
3
], in four organic solvents, acetonitrile, dichloromethane, chloroform, and benzene, have been measured at several temperatures. The rotational correlation times of complex molecules in different solvents, obtained from the NMR relaxation times, can be semi-quantitatively described by the hydrodynamic Debye–Einstein–Stokes (DES) model. However, the slight deviations from the DES model were observed dependent on the kind of solvents, where the effective rotational volume increased in the order of C
6
H
6
~ CH
3
CN < CH
2
Cl
2
< CDCl
3
. In chloroform solution, where two solvent molecules are specifically bound to [Co(acac)
3
] in the ligands’ hollows, the complex molecule can rotate accompanying the chloroform molecules solvated and/or the friction in the outer coordination sphere can be increased by the specific interactions in view of the larger effective rotational volume. The present results indicate that the rotational dynamics of [Co(acac)
3
] in solution is quite sensitive to the solute–solvent interactions in the outer coordination sphere as well as the viscosity of solution.</description><subject>Acetonitrile</subject><subject>Benzene</subject><subject>Carbon 13</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Chloroform</subject><subject>Cobalt</subject><subject>Condensed Matter Physics</subject><subject>Coordination</subject><subject>Dichloromethane</subject><subject>Geochemistry</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Inorganic Chemistry</subject><subject>Ligands</subject><subject>NMR</subject><subject>Nuclear magnetic resonance</subject><subject>Oceanography</subject><subject>Physical Chemistry</subject><subject>Solvents</subject><issn>0095-9782</issn><issn>1572-8927</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9UMtKAzEUDaJgrf6Aq4CbdjF6k3klSyk-BloLtboNSZopU6aTmsyIxZ837QjuXNx7OZwH3IPQNYFbApDfeQI8jSOgYUgMECUnaEDSnEaM0_wUDSDwEc8ZPUcX3m8gYMaTAfpe2Fa2lW1kjSfWOVMfEV5WW-OxLfHSVX4ktWn39WEHYWvH2ipZt6OiKMa4avC7dJXtPJ67tWwqjV9t_Wma1mO1xy-zBV6E1K8-d2ak75zZHuhLdFbK2pur3ztEb48Py8lzNJ0_FZP7aaRjwtuIySSRKzAGGC9XLAYFKstTVVJFSqI5KVlsZKKzleJZqpIsJdrwGDIVqBIgHqKbPnfn7EdnfCs2tnPhYy8oyzjNck54UNFepZ313plS7Fy1lW4vCIhDyaIvWYSSxbFkkQRT3Jt8EDdr4_6i_3H9ACcsgPs</recordid><startdate>20231001</startdate><enddate>20231001</enddate><creator>Kanakubo, Mitsuhiro</creator><creator>Inoue, Naoko</creator><creator>Ikeuchi, Haruko</creator><creator>Satô, Gen P.</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20231001</creationdate><title>Rotational Correlation Times of Tris(acetylacetonato)cobalt(III) in Various Organic Solvents by NMR Relaxation Measurements</title><author>Kanakubo, Mitsuhiro ; Inoue, Naoko ; Ikeuchi, Haruko ; Satô, Gen P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c319t-8a44ad0ee089fd830b0b675bf2b1f1c91f83ea4c6db965b4651ce9306b91ff003</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Acetonitrile</topic><topic>Benzene</topic><topic>Carbon 13</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Chloroform</topic><topic>Cobalt</topic><topic>Condensed Matter Physics</topic><topic>Coordination</topic><topic>Dichloromethane</topic><topic>Geochemistry</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Inorganic Chemistry</topic><topic>Ligands</topic><topic>NMR</topic><topic>Nuclear magnetic resonance</topic><topic>Oceanography</topic><topic>Physical Chemistry</topic><topic>Solvents</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kanakubo, Mitsuhiro</creatorcontrib><creatorcontrib>Inoue, Naoko</creatorcontrib><creatorcontrib>Ikeuchi, Haruko</creatorcontrib><creatorcontrib>Satô, Gen P.</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of solution chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kanakubo, Mitsuhiro</au><au>Inoue, Naoko</au><au>Ikeuchi, Haruko</au><au>Satô, Gen P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rotational Correlation Times of Tris(acetylacetonato)cobalt(III) in Various Organic Solvents by NMR Relaxation Measurements</atitle><jtitle>Journal of solution chemistry</jtitle><stitle>J Solution Chem</stitle><date>2023-10-01</date><risdate>2023</risdate><volume>52</volume><issue>10</issue><spage>1117</spage><epage>1128</epage><pages>1117-1128</pages><issn>0095-9782</issn><eissn>1572-8927</eissn><abstract>NMR relaxation times of the dual-specific nuclei of metal cobalt-59 and ligand methine carbon-13 for tris(2,4-pentanedionato)cobalt(III), which is commonly named as tris(acetylacetonato)cobalt(III), [Co(acac)
3
], in four organic solvents, acetonitrile, dichloromethane, chloroform, and benzene, have been measured at several temperatures. The rotational correlation times of complex molecules in different solvents, obtained from the NMR relaxation times, can be semi-quantitatively described by the hydrodynamic Debye–Einstein–Stokes (DES) model. However, the slight deviations from the DES model were observed dependent on the kind of solvents, where the effective rotational volume increased in the order of C
6
H
6
~ CH
3
CN < CH
2
Cl
2
< CDCl
3
. In chloroform solution, where two solvent molecules are specifically bound to [Co(acac)
3
] in the ligands’ hollows, the complex molecule can rotate accompanying the chloroform molecules solvated and/or the friction in the outer coordination sphere can be increased by the specific interactions in view of the larger effective rotational volume. The present results indicate that the rotational dynamics of [Co(acac)
3
] in solution is quite sensitive to the solute–solvent interactions in the outer coordination sphere as well as the viscosity of solution.</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s10953-023-01300-4</doi><tpages>12</tpages></addata></record> |
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| subjects | Acetonitrile Benzene Carbon 13 Chemistry Chemistry and Materials Science Chloroform Cobalt Condensed Matter Physics Coordination Dichloromethane Geochemistry Industrial Chemistry/Chemical Engineering Inorganic Chemistry Ligands NMR Nuclear magnetic resonance Oceanography Physical Chemistry Solvents |
| title | Rotational Correlation Times of Tris(acetylacetonato)cobalt(III) in Various Organic Solvents by NMR Relaxation Measurements |
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