Spin Crossover in Fe(II) Complexes with N4S2 Coordination

Alejandra Arroyave, Anders Lennartson, Alina Dragulescu-Andrasi, Kasper Pedersen, Stergios Piligkos, Sebastian Stoian, Samuel Greer, Chongin Pak, Oleksandr Hietsoi, Hoa Phan, Stephen Hill, Christine McKenzie, Michael Shatruk

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Abstrakt

A systematic study of a series of Fe(II) complexes with the tetradentate N2S2-binding ligand and NCX− coligands (X = S, Se, BH3) conclusively demonstrates the occurrence of temperature-driven spin crossover (SCO), which is rarely observed for the Fe(II) ion in the N4S2 coordination environment. The SCO is confirmed by crystallography, magnetic measurements, and Mössbauer spectroscopy. The last two methods also reveal a light-induced excited spin state trapping (LIESST) effect at low temperatures.
OriginalsprogEngelsk
TidsskriftInorganic Chemistry
Vol/bind55
Udgave nummer12
Sider (fra-til)5904-5913
ISSN0020-1669
DOI
StatusUdgivet - 2016

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