کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1309639 | 975216 | 2007 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Single molecule magnet: Heterodinuclear cyano-bridged cubic cluster [(Tp)8Fe4Ni4(CN)12] (Tp = hydrotris(1-pyrazolyl)borate) Single molecule magnet: Heterodinuclear cyano-bridged cubic cluster [(Tp)8Fe4Ni4(CN)12] (Tp = hydrotris(1-pyrazolyl)borate)](/preview/png/1309639.png)
The octanuclear cyano-bridged cluster [(Tp)8Fe4Ni4(CN)12] · H2O · 24CH3CN (1) (Tp = hydrotris(1-pyrazolyl)borate) showing magnetic properties of single-molecule magnet has been synthesized by reaction of [fac-Fe(Tp)(CN)3]− with {(Tp)Ni(NO3)} species formed from an equimolar reaction mixture of Ni(NO3)2 · 6H2O and KTp in MeCN. The X-ray analysis of 1 shows molecular cube structure in which FeIII and NiII ions reside in alternate corners. The average intramolecular Fe⋯Ni distance is 5.124 Å. Out-of-phase ac susceptibility and reduce magnetization measurements show that 1 is a single molecule magnet with ground spin state S = 6 and spin reversal energy barrier U = 14 K. Magnetic hysteresis loops were also observed by applying fast sweeping field.
Single-molecule magnet: cyano-bridged heterobimetallic [(Tp)8Fe4Ni4(CN)12] cluster with a cubic structure has been synthesized using a building block [Fe(Tp)(CN)3]−. Magnetic measurements demonstrate that the compound is an SMM with ground spin state S = 6 and spin reversal energy barrier U = 14 K. Sizeable hysteresis loops have been observed by applying fast sweeping field.Figure optionsDownload as PowerPoint slide
Journal: Inorganica Chimica Acta - Volume 360, Issue 8, 30 May 2007, Pages 2647–2652