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X-ray crystal structures of [NHR₃]₂[Fe₄S₄X₄] (X = PhS, R = Et or ⁿ Bu; X = Cl, R = ⁿ Bu): implications for sites of protonation in Fe-S clusters

Lookup NU author(s): Thaer Al-Rammahi, Dr Paul Waddell, Professor Richard Henderson

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Abstract

The X-ray crystal structures of [NHR3](2)[Fe4S4X4] (X = PhS, R = Et or (n) Bu; X = Cl, R = (n) Bu), reported in this paper, show NHaEuro broken vertical bar X interactions between the cation and the cubanoid cluster. Comparison of the cluster dimensions in [NHR3](2)[Fe4S4X4] with those reported earlier for [NR'(4)](2)[Fe4S4X4] (R' = Me, X = PhS; R' = Et, X = Cl) indicates that N-HaEuro broken vertical bar X interactions have a negligible effect on the dimensions of the cluster. The relevance of these structures to understanding where on [Fe4S4X4](2-) protonation labilises the cluster to substitution is discussed.

Publication metadata

Author(s): Al-Rammahi TMM, Waddell PG, Henderson RA

Publication type: Article

Publication status: Published

Journal: Transition Metal Chemistry

Year: 2016

Volume: 41

Issue: 5

Pages: 555-561

Print publication date: 01/08/2016

Online publication date: 21/04/2016

Acceptance date: 13/04/2016

ISSN (print): 0340-4285

ISSN (electronic): 1572-901X

Publisher: Springer

URL: http://dx.doi.org/10.1007/s11243-016-0052-5

DOI: 10.1007/s11243-016-0052-5

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