Jiong-Peng Zhao, Song-De Han, Xue Jiang, Sui-Jun Liu, Ran Zhao, Ze Chang and Xian-He Bu
Chem. Commun., 2015,51, 8288-8291
DOI:
10.1039/C5CC00915D,
Communication
Metal formate frameworks [A][CrMn(HCOO)6] (A = CH3NH2CH3+ for 1 and CH3NH3+ for 2) with a large MCE were obtained, directed by the heterometallic strategy in which very weak magnetic interactions were achieved. A switch from antiferromagnetism to ferromagnetism occurs when replacing the CH3NH2CH3+ cation with CH3NH3+. The magnetic entropy change (−ΔSm) reached 48.20 J kg−1 K−1 for 2, which is the largest among the known polymeric 3d complexes.
