A Manganese (II) Dimer Bearing the Reduced Derivatives of Nitronyl Nitroxides
A Manganese (II) Dimer Bearing the Reduced Derivatives of Nitronyl Nitroxides
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DOI：
10.1016/j.poly.2021.115427
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发表时间：
2021-08
期刊：
影响因子：
2.6
通讯作者：
Dimitris I. Alexandropoulos;Fanmiao Kong;Federico Lombardi;P. Horton;S. Coles;L. Bogani
中科院分区：
文献类型：
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作者：
Dimitris I. Alexandropoulos;Fanmiao Kong;Federico Lombardi;P. Horton;S. Coles;L. Bogani
本文报道了一种新的锰配合物[Mn Ⅱ（hfac）2（IMHPhOPh）] 2 [Mn Ⅱ（hfac）3]（IMH 2 PhOPh）（1）的合成、磁性EPR和导电性质。磁化率的研究表明，存在弱的反铁磁交换的金属离子之间的相互作用，在[Mn II（hfac）2（IMHPhOPh）] 2单位。1的EPR谱表现出单体[Mn II（hfac）3]和二聚体[Mn II（hfac）2（IMHPhOPh）] 2物种的同时贡献。电导率测试表明，化合物1的电导符合欧姆定律，电导率为1.3（6）× 10-9 S/cm。
We report the synthesis, magnetic EPR and conducting properties of a new manganese complex [Mn II (hfac) 2 (IMHPhOPh)] 2 [Mn II (hfac) 3](IMH 2 PhOPh)(1), containing the reduced forms (IMHPhOPh and IMH 2 PhOPh) of the NIT-PhOPh radical (NIT-PhOPh= 2, 4 ‘-benzoxo-4, 4, 5, 5-tetramethylimidazoline-1-oxyl-3-oxide). Magnetic susceptibility studies reveal the presence of weak antiferromagnetic exchange interactions between the metal ions, within the [Mn II (hfac) 2 (IMHPhOPh)] 2 unit. The EPR spectra of 1 exhibit simultaneous contributions of both the monomeric [Mn II (hfac) 3] and dimeric [Mn II (hfac) 2 (IMHPhOPh)] 2 species. Conductivity measurements shown that the electrical conduction of 1 is dominated by Ohm’s law, with a conductance value of 1.3 (6)× 10-9 S/cm.