The
inverse magnetocaloric effect (IMCE) in molecular solids is
explored for two antiferromagnetically coupled MnII dinuclear
complexes. Magnetic studies reveal that both of them demonstrate the
IMCE with negative magnetic entropy changes (−ΔSM = −3.5 J kg–1 K–1), which are in line with an analytic function derived
from the quantized phenomenological model proposed in this work.