(Nitronyl Nitroxide)-Substituted Trioxytriphenylamine Radical Cation Tetrachlorogallate Salt: A 2p-Electron-Based Weak Ferromagnet Composed of a Triplet Diradical Cation
The synthesis and the solid state magnetic properties of (nitronyl nitroxide)‐substituted trioxytriphenylamine radical cation tetrachlorogallate, NNTOT+·GaCl4−, are reported. In the temperature region between 300 and 3 K, the magnetic behavior is characterized by the strong intramolecular ferromagne...
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| Veröffentlicht in: | Chemistry, an Asian journal an Asian journal, 2012-07, Vol.7 (7), p.1604-1609 |
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| creator | Kuratsu, Masato Suzuki, Shuichi Kozaki, Masatoshi Shiomi, Daisuke Sato, Kazunobu Takui, Takeji Kanzawa, Tsuneki Hosokoshi, Yuko Lan, Xiao‐Zheng Miyazaki, Yuji Inaba, Akira Okada, Keiji |
| description | The synthesis and the solid state magnetic properties of (nitronyl nitroxide)‐substituted trioxytriphenylamine radical cation tetrachlorogallate, NNTOT+·GaCl4−, are reported. In the temperature region between 300 and 3 K, the magnetic behavior is characterized by the strong intramolecular ferromagnetic interaction (J/kB=+400 K) between the radical (NN) and the radical cation (TOT+) and the weak intermolecular antiferromagnetic interaction (J/kB=−1.9 K) between NNTOT+ ions. Below 3 K, a 3D‐type long‐range magnetic ordering into a weak ferromagnet was observed (TN=2.65 K). The magnetic entropy (Smag=8.97 J K−1 mol−1) obtained by the heat capacity measurement is in good agreement with the theoretical value of R ln3=9.13 J K−1 mol−1 based on the S=1 state.
A light magnet: An organic stable triplet diradical cation with a diamagnetic tetrachlorogallate anion (NNTOT+⋅GaCl4−, see picture) was prepared and its magnetic properties were investigated by the measurements of magnetic susceptibilities and heat capacity. The compound exhibited a magnetic phase transition at TN=2.65 K from a short‐range‐ordered antiferromagnetic chain to a 3D weak ferromagnet. |
| doi_str_mv | 10.1002/asia.201200084 |
| format | Article |
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A light magnet: An organic stable triplet diradical cation with a diamagnetic tetrachlorogallate anion (NNTOT+⋅GaCl4−, see picture) was prepared and its magnetic properties were investigated by the measurements of magnetic susceptibilities and heat capacity. The compound exhibited a magnetic phase transition at TN=2.65 K from a short‐range‐ordered antiferromagnetic chain to a 3D weak ferromagnet.</description><identifier>ISSN: 1861-4728</identifier><identifier>EISSN: 1861-471X</identifier><identifier>DOI: 10.1002/asia.201200084</identifier><identifier>PMID: 22555990</identifier><language>eng</language><publisher>Weinheim: WILEY-VCH Verlag</publisher><subject>Antiferromagnetism ; Cations ; Chemistry ; Ferromagnetism ; heterocycles ; Magnetic properties ; phase transitions ; radical ions ; Substitutes</subject><ispartof>Chemistry, an Asian journal, 2012-07, Vol.7 (7), p.1604-1609</ispartof><rights>Copyright © 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</rights><rights>Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.</rights><rights>Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim</rights><rights>Copyright Wiley Subscription Services, Inc. Jul 2012</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5954-34993c2877da5e8544e4c19837fc338e383be5c10bf04867227cedcd3ec2353c3</citedby><cites>FETCH-LOGICAL-c5954-34993c2877da5e8544e4c19837fc338e383be5c10bf04867227cedcd3ec2353c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fasia.201200084$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fasia.201200084$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22555990$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kuratsu, Masato</creatorcontrib><creatorcontrib>Suzuki, Shuichi</creatorcontrib><creatorcontrib>Kozaki, Masatoshi</creatorcontrib><creatorcontrib>Shiomi, Daisuke</creatorcontrib><creatorcontrib>Sato, Kazunobu</creatorcontrib><creatorcontrib>Takui, Takeji</creatorcontrib><creatorcontrib>Kanzawa, Tsuneki</creatorcontrib><creatorcontrib>Hosokoshi, Yuko</creatorcontrib><creatorcontrib>Lan, Xiao‐Zheng</creatorcontrib><creatorcontrib>Miyazaki, Yuji</creatorcontrib><creatorcontrib>Inaba, Akira</creatorcontrib><creatorcontrib>Okada, Keiji</creatorcontrib><title>(Nitronyl Nitroxide)-Substituted Trioxytriphenylamine Radical Cation Tetrachlorogallate Salt: A 2p-Electron-Based Weak Ferromagnet Composed of a Triplet Diradical Cation</title><title>Chemistry, an Asian journal</title><addtitle>Chem. Asian J</addtitle><description>The synthesis and the solid state magnetic properties of (nitronyl nitroxide)‐substituted trioxytriphenylamine radical cation tetrachlorogallate, NNTOT+·GaCl4−, are reported. In the temperature region between 300 and 3 K, the magnetic behavior is characterized by the strong intramolecular ferromagnetic interaction (J/kB=+400 K) between the radical (NN) and the radical cation (TOT+) and the weak intermolecular antiferromagnetic interaction (J/kB=−1.9 K) between NNTOT+ ions. Below 3 K, a 3D‐type long‐range magnetic ordering into a weak ferromagnet was observed (TN=2.65 K). The magnetic entropy (Smag=8.97 J K−1 mol−1) obtained by the heat capacity measurement is in good agreement with the theoretical value of R ln3=9.13 J K−1 mol−1 based on the S=1 state.
A light magnet: An organic stable triplet diradical cation with a diamagnetic tetrachlorogallate anion (NNTOT+⋅GaCl4−, see picture) was prepared and its magnetic properties were investigated by the measurements of magnetic susceptibilities and heat capacity. The compound exhibited a magnetic phase transition at TN=2.65 K from a short‐range‐ordered antiferromagnetic chain to a 3D weak ferromagnet.</description><subject>Antiferromagnetism</subject><subject>Cations</subject><subject>Chemistry</subject><subject>Ferromagnetism</subject><subject>heterocycles</subject><subject>Magnetic properties</subject><subject>phase transitions</subject><subject>radical ions</subject><subject>Substitutes</subject><issn>1861-4728</issn><issn>1861-471X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqVkctu1DAYhSMEohfYskSW2JRFBseX2GE3hN6kqkhMUGcXeZw_rdskDrajzjwSb0nSKaPCAsTKt--cY_tE0ZsEzxKMyQfljZoRnBCMsWTPov1EpknMRLJ8vpsTuRcdeH-LMSc4ky-jPUI451mG96MfR5cmONttGvQwWZsK3seLYeWDCUOAChXO2PUmONPfwIip1nSAvqrKaNWgXAVjO1RAcErfNNbZa9U0KgBaqCZ8RHNE-vi4AT1lxJ-UHw2vQN2hE3DOtuq6g4By2_Z2OrE1UlNe34y7n437LeRV9KJWjYfXj-Nh9O3kuMjP4osvp-f5_CLWPOMspizLqCZSiEpxkJwxYDrJJBW1plQClXQFXCd4VWMmU0GI0FDpioImlFNND6OjrW_v7PcBfChb4zWMr-rADr5MMMGS4lTwEX33B3prB9eNtysJyVJOMWb4b1RCUyaEZHTymm0p7az3Duqyd6ZVbjMGllPV5VR1uat6FLx9tB1WLVQ7_Fe3I5BtgXvTwOYfdg_Lp-b_o50vzudPtfFWa3yA9U6r3F2ZCip4eXV5Wp5ly6JY5sX4BT8BK9zW8A</recordid><startdate>201207</startdate><enddate>201207</enddate><creator>Kuratsu, Masato</creator><creator>Suzuki, Shuichi</creator><creator>Kozaki, Masatoshi</creator><creator>Shiomi, Daisuke</creator><creator>Sato, Kazunobu</creator><creator>Takui, Takeji</creator><creator>Kanzawa, Tsuneki</creator><creator>Hosokoshi, Yuko</creator><creator>Lan, Xiao‐Zheng</creator><creator>Miyazaki, Yuji</creator><creator>Inaba, Akira</creator><creator>Okada, Keiji</creator><general>WILEY-VCH Verlag</general><general>WILEY‐VCH Verlag</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>K9.</scope><scope>7X8</scope></search><sort><creationdate>201207</creationdate><title>(Nitronyl Nitroxide)-Substituted Trioxytriphenylamine Radical Cation Tetrachlorogallate Salt: A 2p-Electron-Based Weak Ferromagnet Composed of a Triplet Diradical Cation</title><author>Kuratsu, Masato ; Suzuki, Shuichi ; Kozaki, Masatoshi ; Shiomi, Daisuke ; Sato, Kazunobu ; Takui, Takeji ; Kanzawa, Tsuneki ; Hosokoshi, Yuko ; Lan, Xiao‐Zheng ; Miyazaki, Yuji ; Inaba, Akira ; Okada, Keiji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5954-34993c2877da5e8544e4c19837fc338e383be5c10bf04867227cedcd3ec2353c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Antiferromagnetism</topic><topic>Cations</topic><topic>Chemistry</topic><topic>Ferromagnetism</topic><topic>heterocycles</topic><topic>Magnetic properties</topic><topic>phase transitions</topic><topic>radical ions</topic><topic>Substitutes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kuratsu, Masato</creatorcontrib><creatorcontrib>Suzuki, Shuichi</creatorcontrib><creatorcontrib>Kozaki, Masatoshi</creatorcontrib><creatorcontrib>Shiomi, Daisuke</creatorcontrib><creatorcontrib>Sato, Kazunobu</creatorcontrib><creatorcontrib>Takui, Takeji</creatorcontrib><creatorcontrib>Kanzawa, Tsuneki</creatorcontrib><creatorcontrib>Hosokoshi, Yuko</creatorcontrib><creatorcontrib>Lan, Xiao‐Zheng</creatorcontrib><creatorcontrib>Miyazaki, Yuji</creatorcontrib><creatorcontrib>Inaba, Akira</creatorcontrib><creatorcontrib>Okada, Keiji</creatorcontrib><collection>Istex</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>Chemistry, an Asian journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kuratsu, Masato</au><au>Suzuki, Shuichi</au><au>Kozaki, Masatoshi</au><au>Shiomi, Daisuke</au><au>Sato, Kazunobu</au><au>Takui, Takeji</au><au>Kanzawa, Tsuneki</au><au>Hosokoshi, Yuko</au><au>Lan, Xiao‐Zheng</au><au>Miyazaki, Yuji</au><au>Inaba, Akira</au><au>Okada, Keiji</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>(Nitronyl Nitroxide)-Substituted Trioxytriphenylamine Radical Cation Tetrachlorogallate Salt: A 2p-Electron-Based Weak Ferromagnet Composed of a Triplet Diradical Cation</atitle><jtitle>Chemistry, an Asian journal</jtitle><addtitle>Chem. Asian J</addtitle><date>2012-07</date><risdate>2012</risdate><volume>7</volume><issue>7</issue><spage>1604</spage><epage>1609</epage><pages>1604-1609</pages><issn>1861-4728</issn><eissn>1861-471X</eissn><abstract>The synthesis and the solid state magnetic properties of (nitronyl nitroxide)‐substituted trioxytriphenylamine radical cation tetrachlorogallate, NNTOT+·GaCl4−, are reported. In the temperature region between 300 and 3 K, the magnetic behavior is characterized by the strong intramolecular ferromagnetic interaction (J/kB=+400 K) between the radical (NN) and the radical cation (TOT+) and the weak intermolecular antiferromagnetic interaction (J/kB=−1.9 K) between NNTOT+ ions. Below 3 K, a 3D‐type long‐range magnetic ordering into a weak ferromagnet was observed (TN=2.65 K). The magnetic entropy (Smag=8.97 J K−1 mol−1) obtained by the heat capacity measurement is in good agreement with the theoretical value of R ln3=9.13 J K−1 mol−1 based on the S=1 state.
A light magnet: An organic stable triplet diradical cation with a diamagnetic tetrachlorogallate anion (NNTOT+⋅GaCl4−, see picture) was prepared and its magnetic properties were investigated by the measurements of magnetic susceptibilities and heat capacity. The compound exhibited a magnetic phase transition at TN=2.65 K from a short‐range‐ordered antiferromagnetic chain to a 3D weak ferromagnet.</abstract><cop>Weinheim</cop><pub>WILEY-VCH Verlag</pub><pmid>22555990</pmid><doi>10.1002/asia.201200084</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Antiferromagnetism Cations Chemistry Ferromagnetism heterocycles Magnetic properties phase transitions radical ions Substitutes |
| title | (Nitronyl Nitroxide)-Substituted Trioxytriphenylamine Radical Cation Tetrachlorogallate Salt: A 2p-Electron-Based Weak Ferromagnet Composed of a Triplet Diradical Cation |
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