{"title":"异酞桥双核铜(II)配合物的合成、光谱和铁磁相互作用","authors":"Yan-Tuan Li, Cui-Wei Yan, Dai-Zheng Liao","doi":"10.1007/BF03651764","DOIUrl":null,"url":null,"abstract":"<p>Four novel copper(II) binuclear complexes have been synthesized and characterized, namely [Cu<sub>2</sub>(IPHTA)( L)<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub> (L denotes 2,2′-bipyridine (bpy); 1,10- phenanthroline (phen); 4,4′-dimethyl-2,2′-bipyridine (Me<sub>2</sub>bpy) and 5-nitro-1,10-phenanthroline (NO<sub>2</sub>-phen); where IPHTA is the isophthalate dianion. Based on the elemental analyses, molar conductance measurements and spectroscopic studies, extended IPHTA-bridged structures consisting of two copper(II) ions, each in a square planar environment, are proposed for these complexes. The [Cu<sub>2</sub>(IPHTA)(bpy)<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub> <i>(1)</i> and [Cu<sub>2</sub>(IPHTA)(phen)<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub> <i>(2)</i> complexes were characterized by variable temperature magnetic susceptibility measurements (4–300 K) and the observed data were successfully simulated by the equation based on the spin Hamiltonian operator, <i>Ĥ</i> = −2<i>J</i><i>Ŝ</i><sub>1</sub><i>Ŝ</i><sub>2</sub>, giving the exchange integral <i>J</i> = 8.96 cm<sup>−1</sup> for <i>(1)</i> and <i>J</i> = 9.88 cm<sup>−1</sup> for <i>(2)</i>. This result indicates the presence of a weak ferromagnetic spin-exchange interaction between the metal ions.</p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"1997-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis, spectral and ferromagnetic interactions in isophthalato bridged binuclear copper(II) complexes\",\"authors\":\"Yan-Tuan Li, Cui-Wei Yan, Dai-Zheng Liao\",\"doi\":\"10.1007/BF03651764\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Four novel copper(II) binuclear complexes have been synthesized and characterized, namely [Cu<sub>2</sub>(IPHTA)( L)<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub> (L denotes 2,2′-bipyridine (bpy); 1,10- phenanthroline (phen); 4,4′-dimethyl-2,2′-bipyridine (Me<sub>2</sub>bpy) and 5-nitro-1,10-phenanthroline (NO<sub>2</sub>-phen); where IPHTA is the isophthalate dianion. Based on the elemental analyses, molar conductance measurements and spectroscopic studies, extended IPHTA-bridged structures consisting of two copper(II) ions, each in a square planar environment, are proposed for these complexes. The [Cu<sub>2</sub>(IPHTA)(bpy)<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub> <i>(1)</i> and [Cu<sub>2</sub>(IPHTA)(phen)<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub> <i>(2)</i> complexes were characterized by variable temperature magnetic susceptibility measurements (4–300 K) and the observed data were successfully simulated by the equation based on the spin Hamiltonian operator, <i>Ĥ</i> = −2<i>J</i><i>Ŝ</i><sub>1</sub><i>Ŝ</i><sub>2</sub>, giving the exchange integral <i>J</i> = 8.96 cm<sup>−1</sup> for <i>(1)</i> and <i>J</i> = 9.88 cm<sup>−1</sup> for <i>(2)</i>. This result indicates the presence of a weak ferromagnetic spin-exchange interaction between the metal ions.</p>\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"1997-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/BF03651764\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/BF03651764","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Synthesis, spectral and ferromagnetic interactions in isophthalato bridged binuclear copper(II) complexes
Four novel copper(II) binuclear complexes have been synthesized and characterized, namely [Cu2(IPHTA)( L)2](ClO4)2 (L denotes 2,2′-bipyridine (bpy); 1,10- phenanthroline (phen); 4,4′-dimethyl-2,2′-bipyridine (Me2bpy) and 5-nitro-1,10-phenanthroline (NO2-phen); where IPHTA is the isophthalate dianion. Based on the elemental analyses, molar conductance measurements and spectroscopic studies, extended IPHTA-bridged structures consisting of two copper(II) ions, each in a square planar environment, are proposed for these complexes. The [Cu2(IPHTA)(bpy)2](ClO4)2(1) and [Cu2(IPHTA)(phen)2](ClO4)2(2) complexes were characterized by variable temperature magnetic susceptibility measurements (4–300 K) and the observed data were successfully simulated by the equation based on the spin Hamiltonian operator, Ĥ = −2JŜ1Ŝ2, giving the exchange integral J = 8.96 cm−1 for (1) and J = 9.88 cm−1 for (2). This result indicates the presence of a weak ferromagnetic spin-exchange interaction between the metal ions.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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