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Directed Assembly of Elastin-like Proteins into defined Supramolecular Structures and Cargo Encapsulation In Vitro
Published on: April 8, 2020
Encapsulation of a CrIII Single-Ion Magnet within an FeII Spin-Crossover Supramolecular Host
Mohanad Darawsheh1, Leoní A Barrios1,2, Olivier Roubeau3
1Departament de Química Inorgánica i Orgánica, Universitat de Barcelona, Diagonal 645, 08038, Barcelona, Spain.
Abstract:
Single functional molecules are regarded as future components of nanoscale spintronic devices. Supramolecular coordination chemistry provides unlimited resources to implement multiple functions to individual molecules. A novel coordination [Fe2 ] helicate exhibiting spin-crossover is demonstrated to be ideally suited to encapsulate a [Cr(ox)3 ]3- complex anion (ox=oxalate), unveiling for the first-time single ion slow relaxation of the magnetization for this metal. A possibility of tuning the dynamics of this relaxation as well as the performance of the CrIII center as qubit arises from the observation that metastable high spin FeII centers from the host can be generated by irradiation with green light at low temperature.
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