Branching mechanism of photoswitching in an Fe (II) polypyridyl complex explained by full singlet-triplet-quintet dynamics

T Rozgonyi, G Vankó, M Pápai - Communications Chemistry, 2023 - nature.com
It has long been known that irradiation with visible light converts Fe (II) polypyridines from
their low-spin (singlet) to high-spin (quintet) state, yet mechanistic interpretation of the …

Ultrafast Spin Crossover Photochemical Mechanism in [FeII(2,2′-bipyridine)3]2+] Revealed by Quantum Dynamics

M Alías-Rodríguez, S Bhattacharyya… - The Journal of …, 2023 - ACS Publications
Photoexcitation of [FeII (2, 2′-bipyridine) 3] 2+ induces a subpicosecond spin crossover
transformation from a low-spin singlet to a high-spin quintet state. The mechanism involves …

Modifications of Tanabe-Sugano d6 Diagram Induced by Radical Ligand Field: Ab Initio Inspection of a Fe(II)-Verdazyl Molecular Complex

P Roseiro, S Yalouz, DJR Brook, N Ben Amor… - Inorganic …, 2023 - ACS Publications
Quantum entanglement between the spin states of a metal center and radical ligands is
suggested in an iron (II)[Fe (dipyvd) 2] 2+ compound (dipyvd= 1-isopropyl-3, 5-dipyridil-6 …

Substituent effect on the spin transition of Mixed-Valence Cyanide-Bridged {FeIII2FeII} complexes

J Huang, YR Lei, YJ Gao, PD Mao, YS Meng… - Inorganic Chemistry …, 2024 - Elsevier
We synthesized three isostructural mixed-valence {Fe III 2 Fe II} trinuclear complexes {[(Tp 4-
Me) Fe III (CN) 3] 2 Fe II (1-(4-R-phenyl)-1H-imidazole)}· Sol (1: R= Br, Sol= 10· H 2 O; 2: R …

Control of iron (II)‐tris (2, 2'‐bipyridine) light‐induced excited‐state trap** via external electromagnetic fields

M Alías-Rodríguez, M Huix-Rotllant - ChemPhysChem, 2024 - Wiley Online Library
Light‐induced excited spin‐state trap** reactions in iron pyridinic complexes allow the
iron's low‐to‐high spin transition in a sub‐picosecond timescale. Employing a recently …

The role of open-shell environments on the spectroscopy of complex spin architectures: wavefunction-based studies

P Roseiro - 2023 - theses.hal.science
This thesis studies the influence of the environment in complex spin architectures. It focuses
on open-shell environments in the fields of Organic and Inorganic Chemistry. It starts off by …

Ultrafast spin crossover photochemical mechanism in [Fe (2, 2'− bipyridine) 3] 2+ revealed by quantum dynamics

S Bhattacharyya, M Alias-Rodriguez, M Huix-Rotllant - 2022 - chemrxiv.org
The photoinduced spin crossover reaction of [FeII (2, 2'-bipyridine) 3] 2+ is a light-induced
transformation of the initial singlet low-spin configuration (1A1) in a quintet high-spin state …