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合成了含N,N’-双亚水杨基肼(H_2 salhn)的双核铁配合物[Fe_2(salhn)_3]·2DMF·1.5H_2O,通过X射线单品衍射进行了表征.晶体属单斜晶系,空间群为P2_1/n,a=1.434 2(3)nm,b=1.927 2(4)nm,c=1.7261(4)nm,β=94.94(3),V=4.753(2)nm~3,Z=4,Mr=999.64g·moL~(-1),Dc=1.397g·cm~(-3),μ=0.675mm~(-1),F(000)=2076,R_1=0.0534,wR_2=0.1130.标题配合物是由双核铁配合物分子内界[Fe_2(salhn)_3]、两个游离的DMF分子和H_2O分子组成.[Fe_2(salhn)_3]中每一个铁离子分别与三个四齿配体salhn的三个酚氧原子和三个肼基氮原子配位,形成了Fe(ONON)(O)(N)的变形八面体配位构型,三个配体分别桥联两个金属原子形成特定的三螺旋构型.在标题配合物中,四齿桥联配体N,N’-双亚水杨基肼以负二价阴离子形式存在.
The dinuclear iron complex [Fe_2 (salhn) _3] · 2DMF · 1.5H_2O with N, N’-bis salicylidene hydrazide was synthesized and characterized by X-ray single crystal diffraction. The crystal space group is P2_1 / n, a = 1.434 2 (3) nm, b = 1.927 2 (4) nm, c = 1.7261 (4) nm, β = 94.94 = 3, Z = 4, Mr = 999.64g · moL -1, Dc = 1.397g · cm -3, μ = 0.675mm -1, F000 = 2076, R_1 = 0.0534, wR_2 = 0.1130. The title complex is composed of the iron core of dinuclear iron complex [Fe_2 (salhn) _3], two free DMF molecules and H_2O. [Fe_2 (salhn) _3] Coordination with the three phenolic oxygen atoms and three hydrazino nitrogen atoms of the three tetradentate ligands, salhn, resulted in the deformed octahedral coordination structure of Fe (ONON) (O) (N) Bridging two metal atoms to form a specific triple helical configuration.In the title complex, the tetradentate bridging ligand N, N’-bis-salicylidene hydrazine exists as a negative dianion.