Low-Temperature Magnets M[N(CN)2]2(pyrimidine) (M = Fe and Co) with a 3-D Network

X-Ray crystal structure analyses reveal that the title complexes have a 3-D network, in which N(CN)2− and pyrimidine contribute µ-1,5-bridged 2-D and µ-1,3-bridged 1-D structures, respectively. Magnetic measurements indicate that the Fe and Co complexes have spontaneous magnetizations below the transition temperatures of 3.2 and 1.8 K, respectively.