American Chemical Society
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Tristability Arising from Singlet−Triplet and Quartet Spin States for Dimeric CoIISalen

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journal contribution
posted on 2009-06-01, 00:00 authored by Kil Sik Min, Jordan Arthur, William W. Shum, Muktha Bharathy, Hans-Conrad zur Loye, Joel S. Miller
The magnetic behavior of N,N′-ethylenebis(salicylideniminato)cobalt(II) (CoIISalen, 1) has been reinvestigated and reveals spin-crossover behavior above 295 K. It has a singlet ground state and a triplet excited state at 30 K (21 cm−1; 60 cal/mol) above the ground state, and at a higher temperature spin crossover to the quartet, a second excited state occurs.