Issue 47, 2020

Solid state mononuclear divalent nickel spin crossover complexes

Abstract

Spin crossover complexes containing 3d4–3d7 transition metal ions with tunable electronic configurations in appropriate ligand field environments have been extensively investigated. In contrast, the development of 3d8 divalent nickel complexes displaying such a spin crossover behavior is far behind. The increasing number of X-ray single crystal structures along with magnetic evidence and thermodynamic equilibrium indicate that bistable divalent nickel complexes are gradually recognized to be a formal member of the “spin crossover family”. Unfortunately, the rarity of nickel spin crossover complexes is occasionally mentioned. This Perspective article highlights examples of mononuclear 3d8 nickel spin crossover complexes in dynamic rearrangements with characterized solid state structures from the viewpoint of types of ligands utilized.

Graphical abstract: Solid state mononuclear divalent nickel spin crossover complexes

Article information

Article type
Perspective
Submitted
04 Nhl 2020
Accepted
28 Nhl 2020
First published
30 Nhl 2020

Dalton Trans., 2020,49, 17106-17114

Solid state mononuclear divalent nickel spin crossover complexes

O. A. Qamar, C. Cong and H. Ma, Dalton Trans., 2020, 49, 17106 DOI: 10.1039/D0DT03421E

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