A Family of Dinuclear Iron(II) SCO Compounds Based on a 1,3,4-Thiadiazole Bridging Ligand

作者：Herold Christian F; Carrella Luca M; Rentschler Eva^*

来源：European Journal of Inorganic Chemistry, 2015, 2015(22): 3632-3636.

DOI：10.1002/ejic.201500483

• Spin crossover
• Iron
• 1
• 3
• 4-Thiadiazoles
• Bridging ligands
• Magnetic properties

A new family of dinuclear iron(II) spin-crossover (SCO) compounds with the formula [Fe-2(-L)(2)]X-4, with three different counteranions [X = BF4- (1), ClO4- (2) and F3CSO3- (3)], was prepared and characterized by single-crystal X-ray diffraction, variable-temperature magnetic susceptibility and Mossbauer measurements. These are the first dinuclear iron(II) SCO complexes with a 1,3,4-thiadiazole bridging ligand L {with L = 2,5-bis[(2-pyridylmethyl)amino]methyl-1,3,4-thiadiazole}. The magnetic measurements reveal a gradual and incomplete SCO of the three compounds around room temperature, starting from a diamagnetic [LS-LS] state. The diamagnetic ground state is in agreement with the single-crystal X-ray diffraction and Mossbauer data.

• 出版日期2015-8