期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

四自旋氮氧自由基-锰(Ⅱ)配合物的合成、结构和磁性质 被引量：1

Synthesis,Crystal Structure and Magnetic Properties of a Four-spin Nitroxide Radical-Mn(Ⅱ) Complex
下载PDF
导出
摘要 采用吡啶基取代的氮氧自由基4P4NIT与过渡金属锰(Ⅱ)离子进行配位,得到了1个双核的四自旋配合物{[Mn(hfac)2]2(4P4NIT)2}·CHCl3(其中,4P4NIT=2-(4'-(4″-吡啶基)苯基)-4,4,5,5-四甲基咪唑啉-3-氧化-1-氧基自由基,hfac=1,1,1,5,5,5-六氟乙酰丙酮阴离子)。X射线单晶衍射分析表明,2个4P4NIT自由基作为桥联配体,连接了2个Mn(hfac)2单元,形成双核四自旋配合物。变温磁化率研究表明,配合物中过渡金属Mn(Ⅱ)离子和直接配位的氮氧自由基之间存在着强反铁磁相互作用。 A four-spin complex {[Mn（hfac）2]2（4P4NIT）2}·CHCl3（4P4NIT=2-（4′-（4″-pyridyl）phenyl）-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide,hfac=1,1,1,5,5,5-hexafluoro-acetylaceonate anion） was synthesized using a pyridyl substituted nitroxide radical.The single crystal X-ray analysis reveals that two 4P4NIT radicals act as bridging ligand linking two Mn（hfac）2 units together.The magnetic study shows that there exists strong magnetic interaction between Mn（Ⅱ） ions and directly bonded radicals.
作者 高媛媛 王超 王亚丽 马越 王庆伦 廖代正
机构地区 南开大学化学学院 南开大学天津市金属与分子基材料化学重点实验室 厦门大学固体表面物理化学国家重点实验室
出处 《应用化学》 CAS CSCD 北大核心 2012年第12期1447-1451,共5页 Chinese Journal of Applied Chemistry
基金 国家自然科学基金(21101096 21071085 90922032) 天津市自然科学基金(11JCYBJC03500) 中央高校基本科研业务费专项资金 高等学校博士点基金(20100031120013)资助项目
关键词 氮氧自由基 锰(Ⅱ) 晶体结构 磁性 nitronyl nitroxide radical Mn（Ⅱ） crystal structure magnetic properties
分类号 O614.8 [理学—无机化学]
  • 相关文献

参考文献31

  • 1Lemaire M T. Recent Developments in the Coordination Chemistry of Stable Free Radicals[J].Pure and Applied Chemistry,2004,(02):277-293.doi:10.1351/pac200476020277.
  • 2Cogne A,Laugier J,Luneau D. Novel Square Planar Copper (Ⅱ) Complexe,with Imino or Nitronyl Nitroxide Radicals Exhibiting Large Ferro-and Antiferromagnetie Interactions[J].Inorganic Chemistry,2000,(24):5510-5514.doi:10.1021/ic0005590.
  • 3Ruiz-Molina D,Sporer C,Wurst K. Spin Frustration in a Dimeric Mn Complex with a Metallocene-Substituted α-Nitronyl Nitroxide Radical[J].Angewandte Chemie International Edition,2000,(20):3688-3691.doi:10.1002/1521-3773(20001016)39:20<3688::AID-ANIE3688>3.0.CO;2-6.
  • 4Luneau D,Borta A,Chumakov Y. Molecular Magnets Based on Two-Dimensional Mn(Ⅱ)-Nitronyl Nitroxide Frameworks in Layered Structures[J].Inorganica Chimica Acta,2008,(12/13):3669-3676.doi:10.1016/j.ica.2008.03.109.
  • 5Tsukuda T,Suzuki T,Kaizaki S. Synthesis,Spectroscopic and Magnetic Properties of Lanthanide Complexes with a Chelated Imino Nitroxide Radical[J].Journal of the Chemical Society,Dalton Transactions,2002.1721-1726.
  • 6Bernot K,Bogani L,Canesehi A. A Family of Rare-Earth-Based Single Chain Magnets:Playing with an Isotropy[J].Journal of the American Chemical Society,2006,(24):7947-7956.doi:10.1021/ja061101l.
  • 7Bogani L,Sangregorio C,Sessoli R. Molecular Engineering for Single-Chain-Magnet Behavior in a One-Dimensional Dysprosium-Nitronyl Nitroxide Compound[J].Angewandte Chemie International Edition,2005,(36):5817-5821.doi:10.1002/anie.200500464.
  • 8Poneti G,Bernot K,Rogani L. A Rational Approach to the Modulation of the Dynamics of the Magnetization in a Dysprosium-Nitronyl-Nitroxide Radical Complex[J].Chemical Communications,2007.1807-1809.
  • 9Luneau D,Rey P. Magnetism of Metal-Nitroxide Compounds Involving Bis-Chelating Imidazole and Benzimidazole Substituted Nitronyl Nitroxide Free Radicals[J].Coordination Chemistry Reviews,2005,(23):2591-2611.doi:10.1016/j.ccr.2005.06.008.
  • 10Wang C,Ma Y,Yang X. A Ladder-like One-dimensional Chain Based on a New Biradical and Cu Ⅱ:Crystal Structure and Magnetic Properties[J].Chinese Journal of Chemistry,2010,(09):1593-1599.

二级参考文献23

  • 1Lemaire M T. Recent developments in the coordination chemistry of stable {ree radicals[-J]. Pure Appl Chem, 2004, 76: 277--293.
  • 2Caneschi A, Gatteschi D, Sessoli R, et al. Toward molecular magnets: The metal-radical approachJ]. Acc Chem Res, 1989, 22: 392--398.
  • 3Sorace L, Benelli C, Gatteschi D. Lanthanides in molecular magnetism: Old tools in a new fieldl-J]. Chem Soc Rev, 2011, 40:3 092--3 104.
  • 4Caneschi A, Ferraro F, Gatteschi D, et al. Structure and magnetic properties of a chain compound formed by copper ( ) and a tridentate nitronyl nitroxide radical[J. Inorg Chem, 1991, 30:3 162--3 166.
  • 5Panthou F L, Belorizky E, Calemczuk R, et al. A new type of thermally induced spin transition associated with an e- quatorial*--,axial conversion in a copper( ) nitroxide cluster[-J. J Am Chem Soc, 1995, 117:11 247--11 253.
  • 6Poneti G, Bernot K, Bogani L, et al. A rational approach to the modulation of the dynamics of the magnetisation in a dysprosium nitronyl-nitroxide radical complexEJ. Chem Comm, 2007(18): 1 807-1 809.
  • 7Liu R N, Ma Y, Yang P P, et al. Dynamic magnetic behavior and magnetic ordering in one dimensional Tb-nitronyl nitroxide radical chain[-J3. Dalton Trans, 2010, 39:3 321--3 325.
  • 8Luneau D, Romero F, Ziessel R. Nitronyl nitroxide biradicals as tetradentate chelates.. Unusually large metal ni- troxide ferromagnetic interactionsEJ. Inorg Chem, 1998, 37 : 5 078-- 5 087.
  • 9Caneschi A, Gatteschi D, Lalioti N, et al. Cobalt( II )-nitronyl nitroxide chains as molecular magnetic nanowiresEJ. Angew Chem Int Ed, 2001, 40:1 760--1 763.
  • 10Bernot K, Bogani L, Caneschi A, et al. A family of rare-earth-based single chain magnets : Playing with anisotropy [J]. J AmChemSoc, 2006, 128:7 947--7 956.

同被引文献3

引证文献1

应用化学
2012年 第12期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部