Magnetocaloric Effect and Thermal Conductivity of a 3D Coordination Polymer of [Gd(HCOO)(CO)]

A 3D coordination polymer, [Gd(HCOO)(CO)] was prepared. Its magnetocaloric effect (MCE) (32.7 J K kg at 2 K and 2 T) is significantly larger than that of commercial GdGaO (GGG) (14.6 J kg K at 2 K and 2 T), while its thermal conductivity (9.9 W m K at 3 K) is comparable to that of the commercial GGG (about 10 W m K at 3 K).