vVíctor’s review work on the charge transport and spin crossover properties of metal-organic frameworks (MOFs) and coordination polymers (CPs) has been published in the prestigious Chemical Society Reviews. This is FuniMat’s first review article so far and hopes to bring together two research interest that have been rarely considered together electrical conductivity and the spin crossover transition. The effects of processing the materials as nanofilms and a few significant functional devices are also analysed. We are confident that these areas hold great technological potential and we expect an increasing number of fundamental studies which are necessary for the integration of MOFs and CPs into more sophisticated electronic devices. You can read the full review here.
Natalia and Belens work has been published in JACS. Their work introduces a pioneering methodology for the synthesis of heterometallic titanium frameworks amenable to the principles of reticular chemistry. Instead of relying in the serendipitous discovery of mixed-metal clusters by trial and error, we use heterometallic MOF crystals as precursors to direct the formation of SBUs with variable connection points by metal exchange reactions at low temperature. Click for more info
We are really happy to see our collaboration with Puigmartí-Luis group published in JACS. By using microfluidic chips we manage to grow and shape crystals of our beloved Cu(GHG) peptide MOF at the millimeter scale. This approach permits generating monolith single crystals and might help overcoming the problems associated with the pelletization and densification of these materials for their successful implementation into functional devices. Click for more info
Our collaboration with Sánchez-Costa lab at IMDEA has been published in the cover of the Journal of Physical Chemistry Letters. This work introduces a new sensing mechanism controlled by the interaction of NOx contaminants with the framework for concomitant increase/decrease in the luminescence of the solid. Click for more info
Check our last collaboration with Mateo-Alonso´s group in Polymat. Marta-COF-1 is a nonplanar 2D-COF in which the waviness of the framework does not disrupt the interlayer p-p stacking so their charge transporting properties are similar to those of the best performing planar 2D COFs. The high stability and crystallinity of Marta-COF-1 have allowed an extraordinary level of characterization by HR-TEM, showing chairlike honeycomb facets and aligned mesoporous channels consistent with the experimental and predicted dimensions and packing. For more info see here
Natalia´s work is already available at JACS. The design of metalorganic frameworks with chemical stability is limited to metal connectors as carboxylates or azolates. Inspired by the chemistry of siderophores, we report a hydroxamate titanium framework that combines photoactivity with hydrolytic stability. The straightforward derivatization of carboxylic linkers with hydroxamic groups might represent an alternative route to broaden the family of reticular solids. Check it out!
Our work in collaboration with J.R. Galan-Mascaros group at ICIQ has been published in JACS. This work highlights the versatility and efficiency of TAMOF-1 as a chiral stationary phase capable of separating a variety of model racemic mixtures, including drugs, in a wide range of solvents of different polarity. This performance arises from the combination of chiral channels and weak binding sites allowing for low-energy separation of enantiomers, without any strong binding/recognition sites. Click for more info
Our study of the nanoscale properties of a family of 2D FeII Hoffmann-like coordination polymers was just published as an article in Chemistry of Materials. This collaboration between from FuniMat and SMolMat research groups of the ICMol, and scientist from the DELTA synchrotron of TU Dortmund. We report the fabrication of ultrathin films of (thickness < 30 nm) of this family of 2D FeII Hoffmann-like coordination polymers, and the subsequent study of their electronic and structural properties at the nanoscale. This type of study is unprecedented in spin crossover coordination polymers and contributes to the perspective integration of these materials into the field of electronics. You can read the full text here
Víctors study on the nanostructuration of spin crossover coordination polymers has just been published in Chemical Science. A collaborative endeavor with contributions from FuniMat, RTMM and SMolMat groups of the ICMol, together with Unité Mixte de Physique CNRS/Thales and DEIMOS beamline of the Soleil synchrotron. Below a critical thickness, the completeness of the spin transition is sharply affected due to an equally dramatic film microstructure transition from fully coalesced layer into segregated nanocrystalline particles. This careful examination of the spin crossover properties of films at the nanoscale provides relevant information for scientists working towards the integration of this switchable materials into nanometric electronic and spintronic devices. For more details take a look at the full text here
On a recently published joint work, Jose, Neyvis and Belén used a novel method to induce the translocation of an enzyme into the pores of a MOF. Their procedure is based in a partial denaturation of the enzyme followed by its refolding into the polar cavities offered by the host. Thanks to a combination of experimental and theoretical work, we managed to demonstrate that the enzyme adopts a different conformation inside the MOF, granting it enhanced activity, stability and recyclability. The work is now available in Chemical Science