Single-Crystal X-Ray Diffraction Study of Pressure and Temperature-Induced Spin Trapping in a Bistable Iron(II) Hofmann Framework

Gemma F Turner; Fallyn Campbell; Stephen A Moggach; Simon Parsons; Andrés E Goeta; M Carmen Muñoz; José A Real

doi:10.1002/anie.201914360

Single-Crystal X-Ray Diffraction Study of Pressure and Temperature-Induced Spin Trapping in a Bistable Iron(II) Hofmann Framework

Angew Chem Int Ed Engl. 2020 Feb 17;59(8):3106-3111. doi: 10.1002/anie.201914360. Epub 2020 Jan 21.

Authors

Gemma F Turner¹, Fallyn Campbell², Stephen A Moggach¹, Simon Parsons², Andrés E Goeta³, M Carmen Muñoz⁴, José A Real⁵

Affiliations

¹ School of Molecular Sciences/Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, WA, 6009, Australia.
² EastChem School of Chemistry and Centre for Science at Extreme Conditions, The University of Edinburgh, Kings Buildings, West Mains Road, Edinburgh, EH9 3JJ, UK.
³ Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
⁴ Departamento de Física Aplicada, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valéncia, Spain.
⁵ Institut de Ciencia Molecular/ Departament de Quimica Inorganica, Universitat de València, Doctor Moliner 50, 46100 Burjassot, València, Spain.

PMID: 31782240
DOI: 10.1002/anie.201914360

Abstract

High-pressure single-crystal X-ray diffraction has been used to trap both the low-spin (LS) and high-spin (HS) states of the iron(II) Hofmann spin crossover framework, [Fe^II (pdm)(H₂ O)[Ag(CN)₂ ]₂ ⋅H₂ O, under identical experimental conditions, allowing the structural changes arising from the spin-transition to be deconvoluted from previously reported thermal effects.

Keywords: Hofmann framework; high-pressure crystallography; iron complexes; spin-crossover.

Abstract

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