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Article Abstract
Two new salts of a mononuclear tripodal Fe(II) complex were prepared, using ClO and Cl. The ClO sample (1) remained HS at low temperatures, similar to the previously reported BF 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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