Encapsulation of a Cr III  Single‐Ion Magnet within an Fe II  Spin‐Crossover Supramolecular Host | Zendy

Darawsheh Mohanad | Zendy; Barrios Leoní A. | Zendy; Roubeau Olivier | Zendy; Teat Simon J. | Zendy; Aromí Guillem | Zendy

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Encapsulation of a Cr III Single‐Ion Magnet within an Fe II Spin‐Crossover Supramolecular Host

Author(s) -

Darawsheh Mohanad,

Barrios Leoní A.,

Roubeau Olivier,

Teat Simon J.,

Aromí Guillem

Publication year - 2018

Publication title -

angewandte chemie

Language(s) - English

Resource type - Journals

eISSN - 1521-3757

pISSN - 0044-8249

DOI - 10.1002/ange.201807256

Subject(s) - supramolecular chemistry , spin crossover , spintronics , ion , metastability , oxalate , molecule , chemistry , chemical physics , supramolecular assembly , magnetization , coordination complex , relaxation (psychology) , materials science , crystallography , nanotechnology , metal , ferromagnetism , inorganic chemistry , physics , condensed matter physics , magnetic field , organic chemistry , quantum mechanics , social psychology , psychology

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 [Fe 2 ] 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 Cr III center as qubit arises from the observation that metastable high spin Fe II centers from the host can be generated by irradiation with green light at low temperature.

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