A 3D Compound Based on Semi-rigid Tricarboxylato-Bridged Co(II): Synthesis, Crystal Structure and Magnetism

IF 0.4 4区化学 Q4 CRYSTALLOGRAPHY

Journal of Chemical Crystallography Pub Date : 2023-09-04 DOI:10.1007/s10870-023-00993-1

Yan-Yan An, Ting-Ting Guo, Jian-Hong Bian, Juan-Zhi Yan

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引用次数: 0

Abstract

With the assistance of N-donor ligand 1,4-bi(1H-imidazol-1-yl)benzene (1,4-bib), Co(II) reacts with 5-((4-carboxyphenoxy)-methyl)isophthalic acid (H₃L) under hydrothermal condition to form a compound [Co₃(L³⁻)₂(1,4-bib)₄]·4H₂O (1). The both contributions of semi-rigid tricarboxylic ligand L³⁻ and rigid 1,4-bib leads to predictably high dimensional structure. Compound 1 crystallizes in a complicated 3D network, which can be simplified as 3,6,8-conn topology. For the correlation between structure and property, the structural feature is well reflected in the magnetic property: a carboxylato group bridges two Co(II) paramagnetic ions. Within the dinuclear subunit, significant anti-ferromagnetic interactions are observed.

Graphical Abstract

A novel 3D Co(II) compound 1 is formed via hydrothermal reaction in this work. Antiferromagnetic interactions between two neighbour cations coordinated by one carboxylato group are observed.

Abstract Image

查看原文本刊更多论文

基于半刚性三羧基桥接钴的三维化合物:合成、晶体结构和磁性

在n -供体配体1,4-双(1h -咪唑-1-基)苯(1,4-bib)的辅助下，Co(II)在水热条件下与5-((4-羧基苯氧基)-甲基)间苯二甲酸(H3L)反应生成化合物[Co3(L3−)2(1,4-bib)4]·4H2O(1)。半刚性三羧基配体L3−和刚性1,4-bib的共同作用导致了可预测的高维结构。化合物1在一个复杂的三维网络中结晶，可以简化为3,6,8孔的拓扑结构。对于结构与性能的相关性，结构特征很好地反映在磁性上:一个羧基桥接两个Co(II)顺磁性离子。在双核亚基内，观察到显著的反铁磁相互作用。本文通过水热反应生成了一种新的三维Co(II)化合物1。观察到由一个羧基配位的两个相邻阳离子之间的反铁磁相互作用。

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来源期刊

Journal of Chemical Crystallography 化学-光谱学

CiteScore

1.50

自引率

12.50%

发文量

审稿时长

6.3 months

期刊介绍： Journal of Chemical Crystallography is an international and interdisciplinary publication dedicated to the rapid dissemination of research results in the general areas of crystallography and spectroscopy. Timely research reports detail topics in crystal chemistry and physics and their relation to problems of molecular structure; structural studies of solids, liquids, gases, and solutions involving spectroscopic, spectrometric, X-ray, and electron and neutron diffraction; and theoretical studies.