کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1302514 | 974695 | 2007 | 4 صفحه PDF | دانلود رایگان |
A pair of dinucleating ligands sym-hmp− [sym-hmp−: 2,6-bis[(2-hydroxyethyl)methylaminomethyl]-4-methylphenolate] incorporated two cobalt(II) ions to form a dinuclear cobalt(II) complex [Co2(sym-hmp)2](BPh4)2 (1). Magnetic susceptibility indicated the antiferromagnetic exchange interaction; however, the susceptibility increased again below 20 K. Usually, such an increase is assumed to be caused by a paramagnetic impurity. However, the tilts of local distortion axes around cobalt(II) ions were found to cause the increase despite the antiferromagnetic interaction.
Despite the antiferromagnetic interaction, the tilts of local distortion axes around cobalt(II) ions caused an increase in magnetic susceptibility below 20 K, which had been assumed to be caused by a paramagnetic impurity.Figure optionsDownload as PowerPoint slide
Journal: Inorganic Chemistry Communications - Volume 10, Issue 8, August 2007, Pages 944–947