[Ni(OXPN) Ni(phen)_2 ](Cl O_4)_2 · 2H_2O的合成和性质

Synthesis and Properties of μ-Oxamido Binuclear Ni(II)-Ni(II) Complex

合成了新的双核配合物 [Ni(OXPN) Ni(phen) 2 ](Cl O4) 2 · 2 H2 O[OXPN=N,N′-双 - (3-氨丙基 )草酰胺 ],并进行了表征 .测定了对应单晶 [Ni(OXPN) Ni(phen) 2 ](Cl O4) 2 · 2 H2 O· CH3OH的结构及变温磁化率 (4～ 30 0 K) ,表明该配合物属 P1 空间群 ,a=0 .96 6 5 (4) nm,b=1.32 71(7) nm,c=1.716 3(5 ) nm,α=90 .42 (3)°,β=94.12 (3)°,γ=110 .6 4(4)°,V=2 .0 5 35 5 nm3.两个镍原子配位环境分别为平面四边形和畸变八面体构型 .以草酰二胺桥联的 Ni- Ni核间相距 0 .5 2 6 2 nm.磁化率测定表明两个镍原子间没有磁交换作用 。

A new binuclear complex, [Ni (OXPN)Ni (phen) 2](ClO 4) 2·2H 2O,was synthesized [OXPN=N,N′ bis(3 aminopropy1) oxamido].The crystal stucture of [Ni(OXPN)Ni(phen) 2](ClO 4) 2·2H 2O·CH 3OH was determined. The crystal data are as follows:triclinic, space group 1, a =0.9665(4)nm, b =1.3271(7)nm, c =1.7163(5)nm, α =90.42(3)°, β =94.12(3)°, γ =110.64(4)°.The nickel atoms are in a square planar and distorted octahedral suroundings respectively. The Ni Ni distance is 0.5262nm. The complex is characterized with variable temperature maganetic susceptibility (4～300K) and the data indicate that no magnetic spin exchange occurs between the two nickel ions of the complex.