Cobalt(<sc>ii</sc>) coordination polymers with single-ion magnet property

Single-ion magnets (SIMs) are composed of 3d and/or 4f complexes with substantial energy barriers that inhibit spin reversal at the molecular level. The magnetic bistability of SIMs renders them promising for applications in quantum computing, high-density information storage, and molecular spintronics. Cobalt(ii) ions are particularly advantageous among transition metals due to their high magnetic anisotropy, stability, and diverse coordination geometries. By integrating coordination frameworks with SIMs, a robust foundation has been established for the design and construction of novel molecular nanomagnets. This article provides an overview of single-ion magnetism within cobalt(ii)-based coordination polymers, encompassing self-assemblies in one, two, and three dimensions. These findings underscore the potential of cobalt(ii)-based coordination frameworks as a compelling platform for advancing the field of SIMs.