AUTHOR=Song Xiao-Jiao , Hu Zhao-Bo , Li Miao-Miao , Feng Xin , Kong Ming , Xue Xiao-Ming , Zhang Yi-Quan , Song You 

TITLE=Reversible Switching of Single-Molecule Magnetic Behaviour by Desorption/Adsorption of Solvent Ligand in a New Dy(III)-Based Metal Organic Framework

JOURNAL=Frontiers in Chemistry

VOLUME=9

YEAR=2021

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2021.714851

DOI=10.3389/fchem.2021.714851

ISSN=2296-2646

ABSTRACT=<p>Two metal-organic frameworks (MOFs), [Dy(BDC)(NO<sub>3</sub>)(DMF)<sub>2</sub>]<sub><italic>n</italic></sub> (<bold>1</bold>, H<sub>2</sub>BDC = terephthalic acid) and [Dy(BDC)(NO<sub>3</sub>)]<sub><italic>n</italic></sub> (<bold>1a</bold>), were synthesized. The structures of MOFs <bold>1</bold> and <bold>1a</bold> are easy to be reversibly transformed into each other by the desorption or adsorption of coordination solvent molecules. Accordingly, their magnetic properties can also be changed reversibly, which realizes our goals of manipulating on/off single-molecule magnet behaviour. MOF <bold>1</bold> behaves as a single-molecule magnet either with or without DC field. Contrarily, no slow magnetic relaxation was observed in <bold>1a</bold> both under zero field and applied field.</p>