A new member of a class of rod-like Mn single molecule magnets using 2-(pyridine-2-ly)propan-2-ol

This paper reports on the synthesis, structure and magnetic properties of a new type of rod like Mn 12 metal cluster, [Mn 12 O 7 (OH) 2 (OMe) 2 (dmhmp) 4 (O 2 CPh) 11 (H 2 O)] ( 6 ) where the ligand (dmhmpH) is 2-(pyridine-2-yl)propan-2-ol. Compound ( 6 ) was obtained by reacting MnCl 2 ·4H 2 O with...

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Bibliographic Details
Published in:RSC advances 2019-11, Vol.9 (65), p.3774-37746
Main Authors: Yang, En-Che, Huang, Shi-Yi, Wernsdorfer, Wolfgang, Hong, Ling-Xuan, Damjanovic, Marko, Niekamp, Lukas, Lee, Gene-Hsiang
Format: Article
Language:English
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Summary:This paper reports on the synthesis, structure and magnetic properties of a new type of rod like Mn 12 metal cluster, [Mn 12 O 7 (OH) 2 (OMe) 2 (dmhmp) 4 (O 2 CPh) 11 (H 2 O)] ( 6 ) where the ligand (dmhmpH) is 2-(pyridine-2-yl)propan-2-ol. Compound ( 6 ) was obtained by reacting MnCl 2 ·4H 2 O with dmhmpH in the presence of benzoic salt and Et 3 N. The resulting crystalline material is assigned to the triclinic space group P 1&cmb.macr;. Although compound ( 6 ) displays ferromagnetic and antiferromagnetic competition behavior, this does not prevent the molecule from functioning as a single-molecule magnet (SMM). The SMM behavior is evidenced by observing frequency dependent out-of-phase ac signals as well as magnetization hysteresis loops at low temperatures in a micro-SQUID study. A brief comparison between all rod-like Mn 12 materials is also given in the manuscript. A new member of rod-like Mn 12 molecules functions as a single molecule magnet.
ISSN:2046-2069
DOI:10.1039/c9ra06280g