The thermal and light induced spin transition in [FeL2](BF4)2 (L = 2,6-dipyrazol-1-yl-4-hydroxymethylpyridine).
This communication presents the crystal structures of the high spin state at 300 K, the low spin state at 30 K and the metastable high spin state after irradiation at 30 K and an estimate of the critical LIESST temperature of [FeL2](BF4)2 which is shown to undergo a spin transition at 271 K.
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Chemistry Department, Durham University, South Road, Durham, UK DH1 3LE.
Elhaïk
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Halcrow
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Howard
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