Later in 2022, cyanide-based 2D and 3D frameworks were also investigated, and they showed much more improved changes in the dielectric profile between the LS and HS states . This is due to the framework structure, all the metal centers are connected, thus, any change affects the whole lattice strongly. Coupling dielectricity with SCO can lead to new bistable systems having multifunctional behavior and can be widely used in designing molecule-based devices. Specially the simultaneous switching of low spin/low-permittivity and high spin/high-permittivity can be of high interest in making sensors, and memory devices as they can be manipulated by various external stimuli . The ligands used for making systems that show both dielectric and SCO behavior are given in schemes 3 and 4.