Slow Magnetic Relaxation and Modulated Photoluminescent Emission of Coordination Polymer Based on 3-Amino-4-hydroxybenzoate Zn and Co Metal Ions.

As a starting point, a new 3D porous framework with the {[CoL]·0.5DMF·H 2 O} n chemical formula (where L = 3-amino-4-hydroxybenzoate) is described. Its performance as a single molecule magnet was explored. The study of magnetic properties reveals that Co-MOF shows no frequency-fdependant alternating current ( ac ) signals under zero direct current ( dc ) magnetic field, whereas single-molecule magnet behaviour is achieved when Co II ions are diluted in a Zn II based matrix. Interestingly, this strategy renders a bifunctional [Co x Zn 1-x L] n material that is also characterized by a strong photoluminescent emitting capacity.