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以反式-3-[N,N-二(2-吡啶甲基)氨甲基]-2-羟基-5-甲基苯甲醛肟(H2L)为配体,合成了一个新颖的线性三核铜(Ⅱ)配合物[Cu3L2(py)](Cl O4)2·2THF(1)(py=吡啶,THF=四氢呋喃),对其进行了红外、紫外、热重和单晶结构表征。配合物1属于单斜晶系,空间群为C2/c,a=2.969 0(7)nm,b=1.302 8(3)nm,c=2.057 4(9)nm,β=132.435(2)°,V=5.873(3)nm3,Z=4,R1=0.047 9。单晶结构表明,这是一个混合桥(-N-O-和μ2-O-)连的线性五配位三核铜(Ⅱ)配合物:每个铜均由3个氮原子和2个氧原子配位,中间的铜为扭曲的三角双锥构型,而两侧的铜为扭曲的四方锥构型。变温磁化率显示1的铜离子间存在中等的反铁磁性(J=-33.3(5)cm-1)。
A novel linear trinuclear system was synthesized by using trans-3- [N, N-bis (2-picolyl) aminomethyl] -2-hydroxy-5-methylbenzaldehyde oxime The Cu (Ⅱ) complexes [Cu3L2 (py)] (ClO4) 2.2THF (1) (py = pyridine and THF = tetrahydrofuran) were characterized by IR, UV, TG and single crystal structures. Complex 1 belongs to the monoclinic system with space group C2 / c, a = 2.969 0 (7) nm, b = 1.302 8 (3) nm, c = 2.057 4 , V = 5.873 (3) nm3, Z = 4, R1 = 0.047 9. The single crystal structure shows that this is a linear five-coordinated trinuclear copper (II) complex with mixed bridges (-NO- and μ2-0-): each copper is composed of three nitrogen atoms and two oxygen atoms Bit, the middle of the copper for the twisted triangular double cone configuration, and the copper on both sides of the twisted quadrilateral pyramid configuration. The temperature dependence of magnetic susceptibility shows that there is a moderate antiferromagnetism (1) between copper ions (J = -33.3 (5) cm-1).