Compared with our previous compounds 2
∞[Fe(L)2] (L = 2,3-
Hbpt and 2,3-Mebpt), the improvements of thermal stabilities
for the present cases should be due to their additional phenyl
rings based on the bpt ligand, which enhance the π···π
interactions between layers. Thus, these polydentate anionic
ligands for neutral coordination polymers pave the way to
construct high-temperature SCO property with unusual high
thermal stability.