6533b82efe1ef96bd1293d54
RESEARCH PRODUCT
Spin Crossover Metal-Organic Frameworks with Inserted Photoactive Guests: On the Quest to Control the Spin State by Photoisomerization
Francisco Javier Valverde-muñozJán MoncoľAzzedine BousseksouIvan ŠAlitrošGábor MolnárLionel SalmonBarbora BrachňakováSébastien BonhommeauJán PavlikLucie Routaboulsubject
Materials scienceSpin statesPhotoisomerization02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences0104 chemical sciencesInorganic ChemistryThermogravimetryCrystallographychemistry.chemical_compoundsymbols.namesakeAcetylenechemistrySpin crossoversymbols[CHIM.CRIS]Chemical Sciences/CristallographyMoleculeMetal-organic framework[CHIM.COOR]Chemical Sciences/Coordination chemistry0210 nano-technologyRaman spectroscopydescription
International audience; Three Hofmann-like metal-organic frameworks {Fe(bpac)[Pt(CN)4]}•G (bpac=1,2-bis(4-pyridyl)acetylene) were synthesized with photoisomerizable guest molecules (G = trans-azobenzene, trans-stilbene or cis-stilbene) and were characterized by elemental analysis, thermogravimetry and powder X-ray diffraction. The insertion of guest molecules and their conformation were inferred from Raman and FTIR spectra and from single-crystal X-ray diffraction and confronted with computational simulation. The magnetic and photomagnetic behaviors of the framework are significantly altered by the different guest molecules and different conformations. On the other hand, photoisomerization of the guest molecules becomes strongly hindered by the framework.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-06-09 |