Temperature and Counterion Dependent Spin Crossover in a Hexaamineiron(II) Complex

Based on previous results with [Fe(tame)2]Cl2.MeOH (tame=1,1,1‐tris(aminomethyl)ethane), which exhibits temperature dependent spin crossover, we report a series of isostructural rhombohedral salts [Fe(tame)2]X2.MeOH (X=Br−, ClO4−, BF4−) and examine their temperature dependent structures. In the case...

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Bibliographic Details
Published in:European journal of inorganic chemistry 2021-10, Vol.2021 (38), p.3938-3949
Main Authors: Connolly, Blake J. P., Brosius, Victor, Mertes, Nicole, Demidova, Caroline, Bilyj, Jessica K., Riley, Mark J., Bernhardt, Paul V.
Format: Article
Language:English
Subjects:
Crossovers
Crystal lattices
Ethane
Halides
Hexaamine
Inorganic chemistry
Iron
Low temperature
Single crystals
Spin crossover
Structure elucidation
Temperature
Temperature dependence
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Summary:Based on previous results with [Fe(tame)2]Cl2.MeOH (tame=1,1,1‐tris(aminomethyl)ethane), which exhibits temperature dependent spin crossover, we report a series of isostructural rhombohedral salts [Fe(tame)2]X2.MeOH (X=Br−, ClO4−, BF4−) and examine their temperature dependent structures. In the case of [Fe(tame)2]Br2.MeOH, temperature dependent single crystal Vis‐NIR spectroscopy is reported as a complement to single crystal X‐ray diffraction results. The [Fe(tame)2]Br2.MeOH compound does show spin crossover behaviour but at very low temperatures (
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.202100560