Ferromagnetic interactions in copper(II) and nickel(II) coordination polymers containing nitronyl nitroxide radical and terephthalate |
| |
| Authors: | Licun Li Daizheng Liao Shiping Yan |
| |
| Affiliation: | a Department of Chemistry, Nankai University, Tianjin 300071, PR China
b State Key Laboratory of Structural chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, PR China |
| |
| Abstract: | Two new complexes [Cu(NITmPy)2(tp)] 1 and [Ni(NITmPy)2(tp)(H2O)2] 2 (NITmPy=2-(3′-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide and tp=terephthalato dianion) were synthesized and structurally and magnetically characterized. The structure of 1 is a neutral infinite chain where Cu(NITmPy)2 units are linked by terephthalate ligands. In complex 2, the 1-D chains of Ni(NITmPy)2 (H2O)2 units connected by tp develop into 2-D network via hydrogen bond interactions. The magnetic properties of 1 and 2 have been investigated in the temperature range 2-300 K. Both complexes exhibit ferromagnetic coupling and antiferromagnetic interactions dominate at low temperature. The magnetic behavior is discussed based on their structures. |
| |
| Keywords: | Nitronyl nitroxide Copper complexes Nickel complexes Terephthalate Crystal structures Magnetic properties |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
