Spin Canting and Metamagnetism in a 3D Homometallic Molecular Material Constructed by Interpenetration of Two Kinds of Cobalt(II)-Coordination-Polymer Sheets

摘要

Molecular magnetism - such as ferromagnetic, ferrimagnetic, and antiferromagnetic long-range ordering properties at low temperatures - has been observed for many transition-metal complexes.[1] In contrast, only a few magnetically ordered complexes exhibit metamagnetic phase transitions,[1b],[c] and most of them are heterometallic[2] or homometallic compounds[3] or metal-radical materials[4] that display low dimensionality (one- or two-dimensional structures). In particular, homometallic three-dimensional metamagnets have only been documented in several azide-bridged complexes[5] and metal phosphonates[6] or metal carboxylates.