Synthesis, structure and magnetic properties of a cobalt(II) mesoxalate 1D coordination polymer,Zeitschrift für anorganische und allgemeine Chemie

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Synthesis, structure and magnetic properties of a cobalt(II) mesoxalate 1D coordination polymer
Zeitschrift für anorganische und allgemeine Chemie ( IF 1.1 ) Pub Date : 2021-01-15 , DOI: 10.1002/zaac.202000431
Beatriz Gil-Hernández ₁ , Joaquín Sanchiz ₂

Affiliation

Mesoxalate ligand (H₂mesox)²⁻, the conjugate base of the mesoxalic acid (2,2’‐dihydroxyl‐malonic acid) reacts with cobalt (II) ions to form the 1‐D coordination polymer {[Co(H₂mesox)(H₂O)₂] ⋅ H₂O}_n. This compound displays a structure based on homochiral polymeric chains which stack together in an AABB fashion through hydrogen bonding by both coordination and crystallisation water molecules. Although the magnetic properties for such a Co(II) compound are difficult to interpret in the whole temperature range, at low temperatures the Co(II) behaves as an S=1/2 effective spin and equation derived by Fisher from the Ising model was applied to analyse the data in the 4–40 K range. The magnetic interactions in this compound are compared with the magnetic interactions displayed by similar compounds reported in the literature.

中文翻译：

中草酸钴（II）一维配位聚合物的合成，结构和磁性

中草酸酯配体（H ₂ mesox）^2-是中草酸（2,2'-二羟基丙二酸）的共轭碱，与钴（II）离子反应形成一维配位聚合物{[Co（H ₂ mesox ）（H ₂ O）₂ ]⋅H ₂ O} _n。该化合物显示出基于同手性聚合物链的结构，该同手性聚合物链通过配位和结晶水分子通过氢键以AABB形式堆叠在一起。尽管很难在整个温度范围内解释此类Co（II）化合物的磁性能，但在低温下Co（II）的行为类似于S费舍尔从Ising模型得出的= 1/2有效自旋和方程式被用于分析4–40 K范围内的数据。将该化合物中的磁性相互作用与文献中报道的类似化合物所显示的磁性相互作用进行了比较。

更新日期：2021-03-11

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