Exploring the influence of counterions on a hysteretic spin-transition in isomorphous iron(ii) complex salts

Abstract

[FeL2]X2·2H2O (L = 2,6-bis{5-methyl-1H-pyrazol-3-yl}pyridine; X‒ = BF4‒ or ClO4‒) are readily dehydrated upon mild heating. Anhydrous [FeL2][BF4]2 exhibits an abrupt spin-transition at T½ = 205 K, with a 65 K...

Investigation of the spin crossover behaviour of a sublimable Fe(ii)-qsal complex: from the bulk to a submonolayer on graphene/SiO2

“…Even though this is not a common phenomenon, it has been observed for several SCO complexes, and in most cases, it was found to be accompanied by structural phase transitions, among other possibilities. 39–43…”

“…Even though this is not a common phenomenon, it has been observed for several SCO complexes, and in most cases, it was found to be accompanied by structural phase transitions, among other possibilities. [39][40][41][42][43] Performing the same experiment with lower temperature sweep rates (0.4 and 0.1 K min −1 ) prevents the trapping of the…”