Recent Advances in Molecular Magnetic Materials

2009 ◽  
Vol 62 (9) ◽  
pp. 1081 ◽  
Author(s):  
Keith S. Murray

This review describes advances made in three areas of molecular magnetic materials of the types A: extended frameworks (coordination polymers) showing long-range magnetic order, B: spin-coupled clusters with emphasis on single molecule magnets and (n × n) grid species, C: polynuclear spin-switching (spin crossover) compounds of FeII with emphasis on dinuclear compounds and one-dimensional (1D) and three-dimensional (3D) (framework) materials, including porous ‘hybrid’ systems. The work of the author and his group is largely used to provide examples, together with results from other groups and collaborators that are included for comparison and completeness. Supramolecular aspects such as cluster–cluster and chain–chain interactions are discussed where relevant. A brief discussion is also given of the recent studies, carried out elsewhere, dealing with aspects of spintronics and the possible future relevance to molecular computers (type B materials) and with memory and other device possibilities (type C materials)

2021 ◽  
Author(s):  
Marius Andruh ◽  
Federico Totti ◽  
Matteo Briganti

The search for molecule-based magnetic materials has stimulated over the years the development of an extremely rich coordination chemistry. Various combinations of spin carriers have been investigated and illustrated by...


2019 ◽  
Vol 25 (51) ◽  
pp. 11795-11795
Author(s):  
Jakub J. Zakrzewski ◽  
Szymon Chorazy ◽  
Koji Nakabayashi ◽  
Shin‐ichi Ohkoshi ◽  
Barbara Sieklucka

2009 ◽  
Vol 21 (2) ◽  
pp. NA-NA
Author(s):  
Matteo Mannini ◽  
Francesco Pineider ◽  
Philippe Sainctavit ◽  
Loïc Joly ◽  
Arantxa Fraile-Rodríguez ◽  
...  

2009 ◽  
Vol 62 (9) ◽  
pp. 1108 ◽  
Author(s):  
Ross Inglis ◽  
Giannis S. Papaefstathiou ◽  
Wolfgang Wernsdorfer ◽  
Euan K. Brechin

The complexes [MnIII3O(Et-sao)3(O2CPh(Cl)2)(MeOH)3(H2O)] (1), [MnIII3O(Et-sao)3(ClO4)(MeOH)3] (2), [MnIII3O(Et-sao)3(O2Ph(CF3)2)(EtOH)(H2O)3] (3), and [MnIII3O(Ph-sao)3(O2C-anthra)(MeOH)4]·Ph-saoH2 (4·Ph-saoH2) display dominant ferromagnetic exchange interactions leading to molecules with S = 6 ground states. The molecules are single molecule magnets (SMM) displaying large effective energy barriers for magnetization reversal. In each case their crystal structures reveal multiple intermolecular H-bonding interactions. Single crystal hysteresis loop measurements demonstrate that these interactions are strong enough to cause a clear field bias, but too weak to transform the spin networks into classical antiferromagnets. These three-dimensional networks of exchange coupled SMMs demonstrate that quantum tunnelling magnetization can be controlled using exchange interactions, suggesting supramolecular chemistry can be exploited to modulate the quantum physics of molecular magnets.


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