“…[11,12] In addition to the significant changes in magnetism, modulation on spin states may also synergize with other functionalities, such as electrical conductivity, [13,14] ferroelectric property, [15,16] negative thermal expansion, [17,18] or luminescence, [19,20] portending such kind of molecules toward multi-functional materials. Moreover, magnetic changes may be also achieved in a non-spin switching manner, induced by the so-called structural phase transition (SPT), such as order/disorder rearrangement, [21,22] dynamic coordination bond breakage/formation, [23] ligand rotation, [24] or cis-trans isomerism. [25] Thereafter, the incorporation of both spin and non-spin transitions (SCO + SPT) in one molecule has provided a new promising strategy for the construction of multifunctional systems, which are useful for multi-switching and ternary memory devices.…”