Issue 34, 2024

Spin crossover of a Fe(ii) mononuclear complex induced by intermolecular factors involving chloride and solvent ordering

Abstract

Two new salts of a mononuclear tripodal Fe(II) complex were prepared, using ClO4 and Cl. The ClO4 sample (1) remained HS at low temperatures, similar to the previously reported BF4 analogue. Crystallising with the Cl anion (2) led to a markedly different crystal packing arrangement, and engendered SCO activity. This has been correlated to the lower crystal packing density in 2 and the coordination complex conformational differences arising due to the packing motifs of 1 and 2. Further, solvent ordering effects have been proposed to facilitate spin transition behaviour in 2.

Graphical abstract: Spin crossover of a Fe(ii) mononuclear complex induced by intermolecular factors involving chloride and solvent ordering

Supplementary files

Article information

Article type
Paper
Submitted
08 Mar 2024
Accepted
30 Apr 2024
First published
03 May 2024

Dalton Trans., 2024,53, 14144-14152

Spin crossover of a Fe(II) mononuclear complex induced by intermolecular factors involving chloride and solvent ordering

K. Zhang, M. J. Wallis, A. R. Craze, S. Hayami, H. Min, D. J. Fanna, M. M. Bhadbhade, R. Tian, C. E. Marjo, L. F. Lindoy and F. Li, Dalton Trans., 2024, 53, 14144 DOI: 10.1039/D4DT00706A

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