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为了研究配体修饰对自旋交叉现象的影响,我们合成了两个Fe?自旋交叉的配合物犤Fe(dpq)(py)2(NCS)2犦·H2O·py和犤Fe(dpq)(py)2(NCSe)2犦·1.5H2O,(dpq=二吡嗪犤2,3-f:2’3’-h犦喹喔啉,py=吡啶)。通过对这两个配合物磁性质和穆斯堡尔谱的研究,发现和用邻啡咯啉配体合成的配合物比较,配体的修饰对自旋交叉性质以及其临界温度都有着显著影响。
In order to study the effect of ligand modification on the phenomenon of spin-crossover, we synthesized two complexes of Fe (dpq) (py) 2 (NCS) 2 犦 · H2O · py and 犤Fe (dpq) (py) 2 (NCSe) 2 · 1.5H2O, (dpq = dipyrazinone 2,3-f: 2’3’-hquinoxaline, py = pyridine). By studying the magnetic properties and the Mössbauer spectra of these two complexes, it was found that the ligand modification has a significant effect on the spin-crossing properties and its critical temperature compared to the complexes synthesized with the vicinal morpholine ligands .