A heterometallic strategy to achieve a large magnetocaloric effect in polymeric 3d complexes.
作者信息
Zhao Jiong-Peng, Han Song-De, Jiang Xue, Liu Sui-Jun, Zhao Ran, Chang Ze, Bu Xian-He
机构信息
TKL of Metal- and Molecule-Based Material Chemistry, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, P. R. China.
出版信息
Chem Commun (Camb). 2015 May 14;51(39):8288-91. doi: 10.1039/c5cc00915d.
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.
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