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Enhanced single-molecule magnetism in dysprosium complexes of a pristine cyclobutadienyl ligand.
Chemical Communications ( IF 4.3 ) Pub Date : 2020-03-26 , DOI: 10.1039/d0cc01722a
James P Durrant 1 , Jinkui Tang 2 , Akseli Mansikkamäki 3 , Richard A Layfield 4
Affiliation  

Intact transfer of the cyclobutadienyl ligand [C4(SiMe3)4]2- to yttrium and dysprosium (M) produces the half-sandwich complexes [M{η4-C4(SiMe3)4}(BH4)2(THF)]- as coordination polymers with bridging sodium or potassium ions. The dysprosium versions are single-molecule magnets (SMMs) with energy barriers of 371(7) and 357(4) cm-1, respectively. The pristine cyclobutadienyl ligands provide a strong axial crystal field that enhances the SMM properties relative to related cyclopentadienyl compounds.

中文翻译:

原始环丁二烯配体的s络合物中增强的单分子磁性。

环丁二烯基配体[C4(SiMe3)4] 2-完整转移至钇和(M),生成半三明治复合物[M {η4-C4(SiMe3)4}(BH4)2(THF)]-进行配位具有桥接钠或钾离子的聚合物。versions版本是单分子磁体(SMM),其能垒分别为371(7)和357(4)cm-1。原始的环丁二烯基配体提供了强大的轴向晶体场,相对于相关的环戊二烯基化合物,该晶体场增强了SMM特性。
更新日期:2020-03-19
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