基于柔性双吡啶双酰胺和角状二羧酸配体的一对 Co 超分子异构体。

A Pair of Co Supramolecular Isomers Based on Flexible Bis-Pyridyl-Bis-Amide and Angular Dicarboxylate Ligands.

机构信息

Department of Chemistry, Amrit Campus, Tribhuvan University, Kathmandu 44600, Nepal.

Department of Chemistry, Chung Yuan Christian University, Chung-Li 320, Taiwan.

出版信息

Molecules. 2020 Jan 3;25(1):201. doi: 10.3390/molecules25010201.

DOI:10.3390/molecules25010201

PMID:31947805

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6982743/

Abstract

Thermal reactions of cobalt(II) salts with flexible -bis(pyrid-3-ylmethyl)adipoamide () and angular 4,4'-sulfonyldibenzoic acid (HSDA) in HO and CHOH afforded a pair of supramolecular isomers: [Co()(SDA)], , and [Co()(SDA)]⋅CHOH⋅HO, . The structure of complex can be simplified as a one-dimensional (1D) looped chain with ligands penetrating into the middles of squares, forming a new type of self-catenated net with the (4⋅5)(4)(5) topology, whereas complex displays a 2-fold interpenetrated 2D net with the rare (4⋅6⋅8⋅10)(4)-2,6L1 topology. While both complexes and display antiferromagnetism with strong spin-orbital coupling, the antiferromagnetism of is accompanied by a cross-over behavior and probably a spin canting phenomenon.

摘要

钴(II)盐与柔性 -双（吡啶-3-基甲基）己二酰胺（）和角型 4,4'-磺酰基二苯甲酸（HSDA）在 HO 和 CHOH 中的热反应提供了一对超分子异构体：[Co()(SDA)]，，和[Co()(SDA)]⋅CHOH⋅HO，。配合物的结构可以简化为一维（1D）环链，其中个配体渗透到正方形的中心，形成具有（4⋅5）（4）（5）拓扑的新型自穿插网，而配合物则显示出具有罕见（4⋅6⋅8⋅10）（4）-2,6L1 拓扑的 2 重穿插的 2D 网。虽然配合物和都表现出具有强自旋轨道耦合的反铁磁性，但的反铁磁性伴随着交叉行为，可能还有自旋倾斜现象。