Synthesis and magnetic properties of two Mn-based coordination polymers constructed by a mixed-ligand strategy

CrystEngComm ◽  
2020 ◽  
Vol 22 (42) ◽  
pp. 7123-7128
Author(s):  
Yujuan Zhang ◽  
Lingling Gao ◽  
Wendi Zhou ◽  
Xiaoqin Wei ◽  
Tuoping Hu

Two Mn(ii) CPs have been synthesized by mixed-ligand strategy and measured for their magnetic properties. Moreover, analysis of the magnetic structure–effect relationship indicates that 1 and 2 have different Mn chains of magnetic interactions.

2018 ◽  
Vol 47 (34) ◽  
pp. 11888-11894 ◽  
Author(s):  
Gabriela Handzlik ◽  
Barbara Sieklucka ◽  
Dawid Pinkowicz

Anionic bridging ligands formate, cyanide and azide have been used to form cross-links in a ferrimagnetic coordination framework, resulting in competing magnetic interactions that decrease the magnetic ordering temperature and result in peculiar magnetic properties.


RSC Advances ◽  
2019 ◽  
Vol 9 (31) ◽  
pp. 17560-17570 ◽  
Author(s):  
Jun-Liang Dong ◽  
Peng-Yin Zhu ◽  
Jia-Qiang Du ◽  
Fei Xie ◽  
Hai-Ming Lan ◽  
...  

Six new metal–organic coordination polymers were prepared by reactions of the corresponding metal salt with mixed organic ligands under solvothermal conditions. The compounds were structurally, magnetically and catalytically characterized.


2018 ◽  
Vol 4 (4) ◽  
pp. 58 ◽  
Author(s):  
Samia Benmansour ◽  
Antonio Hernández-Paredes ◽  
Carlos Gómez-García

Here we show the important role played by the size of the lanthanoid and the solvent used in the final structures of several two-dimensional magnetic coordination polymers with the ligand chlorocyananilato, (C6O4(CN)Cl)2−. With this aim we have prepared five compounds: [Nd2(C6O4(CN)Cl)3(DMF)6] (1) (DMF = dimethylformamide), [Dy2(C6O4(CN)Cl)3(DMF)6]·4H2O (2), [Ho2(C6O4(CN)Cl)3(DMF)6]·2H2O (3), and [Ln2(C6O4(CN)Cl)3(DMSO)6] with Ln = Ce (4) and Nd (5) (DMSO = dimethylsulfoxide). These compounds are formed by two dimensional networks with a (6,3)-topology but, depending on the size of the lanthanoid and on the solvent used, show important structural differences, including the size, shape, distortion and content of the cavities as well as the flatness of the layers. The comparison of compounds 1–3 and 4–5 shows the role played by the size of the lanthanoid while keeping constant the solvent, whereas, the comparison of compounds 1 and 5 shows the role of the solvent (DMF vs. DMSO) while keeping constant the lanthanoid. The magnetic properties of all of them show the absence of noticeable magnetic interactions, in agreement with previous results that can be explained by the internal character of the 4f electron and the weak magnetic coupling mediated by these anilato-based ligands.


2015 ◽  
Vol 44 (19) ◽  
pp. 9209-9220 ◽  
Author(s):  
Zuo-Xi Li ◽  
Gan Ye ◽  
Juan Han ◽  
Ying Yang ◽  
Kang-Yu Zou ◽  
...  

Three coordination polymers with isomeric ligands were studied and used to prepare CoO and Co3O4 particles.


2014 ◽  
Vol 1 (5) ◽  
pp. 414-425 ◽  
Author(s):  
Biswajit Bhattacharya ◽  
Dilip Kumar Maity ◽  
Pradip Pachfule ◽  
Enrique Colacio ◽  
Debajyoti Ghoshal

Mixed ligand coordination polymers showing excellent catalytic activity for Knoevenagel condensation reaction.


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