Author, as appears in the article.: Qi, Xinghui; Pillet, Sebastien; de Graaf, Coen; Magott, Michal; Bendeif, El-Eulmi; Guionneau, Philippe; Rouzieres, Mathieu; Marvaud, Valerie; Stefanczyk, Olaf; Pinkowicz, Dawid; Mathoniere, Corine;
Department: Química Física i Inorgànica
URV's Author/s: De Graaf, Cornelis
Keywords: X-ray diffraction Transition Temperature State Photomagnetism Photochemistry Molybdenum Magnetization Magnetic properties Ligand-field photolysis Hydrazine Cyanides Coordination Complexes x-ray diffraction molybdenum magnetic properties cyanides
Abstract: The photoinduced properties of the octacoordinated complex K4MoIV(CN)(0) center dot 2 H2O were studied by theoretical calculations, crystallography, and optical and magnetic measurements. The crystal structure recorded at 10 K after blue light irradiation reveals an heptacoordinated Mo(CN)(7) species originating from the light-induced cleavage of one Mo-CN bond, concomitant with the photoinduced formation of a paramagnetic signal. When this complex is heated to 70 K, it returns to its original diamagnetic ground state, demonstrating full reversibility. The photomagnetic properties show a partial conversion into a triplet state possessing significant magnetic anisotropy, which is in agreement with theoretical studies. Inspired by these results, we isolated the new compound [K(crypt-222)](3)[Mo-IV(CN)(7)] center dot 3 CH3CN using a photochemical pathway, confirming that photodissociation leads to a stable heptacyanomolybdate(IV) species in solution.
Thematic Areas: Química Medicina ii Medicina i Materiais Interdisciplinar General medicine General chemistry Farmacia Engenharias ii Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Chemistry, multidisciplinary Chemistry (miscellaneous) Chemistry (all) Chemistry Catalysis Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 14337851
Author's mail: coen.degraaf@urv.cat
Author identifier: 0000-0001-8114-6658
Record's date: 2023-02-22
Papper version: info:eu-repo/semantics/acceptedVersion
Papper original source: Angewandte Chemie (International Ed. Print). 59 (8): 3117-3121
APA: Qi, Xinghui; Pillet, Sebastien; de Graaf, Coen; Magott, Michal; Bendeif, El-Eulmi; Guionneau, Philippe; Rouzieres, Mathieu; Marvaud, Valerie; Stefancz (2020). Photoinduced Mo-CN Bond Breakage in Octacyanomolybdate Leading to Spin Triplet Trapping. Angewandte Chemie (International Ed. Print), 59(8), 3117-3121. DOI: 10.1002/anie.201914527
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili
Journal publication year: 2020
Publication Type: Journal Publications
Repositori URV