Cooperative spin transition in a mononuclear manganese(III) complex.

Authors :: Martinho PN
Gildea B
Harris MM
Lemma T
Naik AD
Müller-Bunz H
Keyes TE
Garcia Y
Morgan GG
Source :: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2012 Dec 07; Vol. 51 (50), pp. 12597-601. Date of Electronic Publication: 2012 Nov 05.
Publication Year :: 2012
Abstract: Mind the gap: A complete, cooperative spin transition for a mononuclear Mn(III) complex is reported with an 8 K hysteresis window. Raman spectra collected at a single temperature in warming and cooling modes confirm the electronic bistability within the hysteresis loop. The source of the cooperativity is a disconnection in the hydrogen-bonded 1D chains that connect adjacent cations owing to an order-disorder transition in the PF(6)(-) counterion.<br /> (Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)