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

Spin crossover of a Fe(ii) mononuclear complex induced by intermolecular factors involving... 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Dalton Transactions Royal Society of Chemistry

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

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Royal Society of Chemistry
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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.

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Dalton Transactions – Royal Society of Chemistry

Published: May 3, 2024

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