引用本文:
冯云龙, 刘世雄. 异亚硝基乙酰丙酮及其Schiff碱混配体Co(Ⅲ)配合物的晶体结构[J]. 应用化学,
2002, 19(9): 842-846.
Citation: FENG Yun-Long, LIU Shi-Xiong. Spectral Property and Crystal Structure of Cobalt(Ⅲ) Complexes of Isonitrosoacetylacetone-N-arylimine[J]. Chinese Journal of Applied Chemistry, 2002, 19(9): 842-846.
Citation: FENG Yun-Long, LIU Shi-Xiong. Spectral Property and Crystal Structure of Cobalt(Ⅲ) Complexes of Isonitrosoacetylacetone-N-arylimine[J]. Chinese Journal of Applied Chemistry, 2002, 19(9): 842-846.
异亚硝基乙酰丙酮及其Schiff碱混配体Co(Ⅲ)配合物的晶体结构
摘要:
合成了2个异亚硝基乙酰丙酮及其Schiff碱异亚硝基乙酰丙酮-N-芳基亚胺的Co(Ⅲ)混配体配合物,CoCl(p-ClC6H4-IAI)(IAA)(IAI=异丙硝基乙酰丙酮亚胺))(p-ClC6H4NH2)(1)和CoCl(o-BrC6H4-IAI)(IAA)(o-BrC6H4NH2)(2),并测定了它们的晶体结构。配合物1晶体属单斜晶系,空间群为P21/n,晶胞参数:a=1.6111(3)nm,b=1.3456(3)nm,c=2.3953(5)nm,U=91.42(3)°,Z=8,F(000)=2400,_=10.10cm-1,R=0.0731。配合物2晶体属三斜晶系,空间群为P1,晶胞参数:a=0.9511(2)nm,b=0.9538(2)nm,c=1.5687(3)nm,T=77.45(3)°,U=86.08(3)°,V=64.71(3)°,Z=2,F(000)=672,_=40.14cm-1,R=0.0601。Schiff碱aryl-IAI-配体的肟基N原子和亚胺基N原子,IAA-配体的羰基O原子和肟基N原子,以及胺基N原子和Cl-与Co(Ⅲ)配位,Co(Ⅲ)具有畸变ClN4O八面体配位构型。由于分子间氢键的相互作用,配合物1晶体呈平行于a轴的一维无限链状结构,链与链间最短距离为0.3436(3)nm。
English
Spectral Property and Crystal Structure of Cobalt(Ⅲ) Complexes of Isonitrosoacetylacetone-N-arylimine
Abstract:
Two cobalt(Ⅲ) complexes of isonitrosoacetylacetone and its Schiff base isonitroso acetylacetone-N-arylimine, CoCl(p-ClC6H4-IAI)(IAI=isonitrosoacetylacetoneimino)(IAA)(p-ClC6H4NH2)(1) and CoCl(o-BrC6H4-IAI)(IAA)(o-BrC6H4NH2)(2), were prepared. Their spectral properties and structures were characterized by IR, Raman spectroscopy and XRD. The complex 1 crystallizes in monoclinic, with space group P21/n, a=1.6111(3) nm, b=1.3456(3) nm, c=2.3953(5) nm, U=91.42(3)°, Z=8, F(000)=2.400, _=10.10 cm-1. The final R=0.0731 for 5120 observed reflections with I≥2e(I). The complex 2 crystallizes in triclinic, with space group P1, a=0.9511(2) nm, b=0.953 8(2) nm, c=1.5687(3) nm, T=77.45(3)°, U=86.08(3)°, V=64.71(3)°, Z=2, F(000)=672, _=40.14 cm-1. The final R1 is 0.060.1 for 4207 observed reflections with I≥2σ(I). The geometry around the Co(Ⅲ) ions in both complexes has a distorted octahedral ClN4O coordination composed of imino-nitrogen and oximo-nitrogen from the Schiff base ligand aryl-IAI-, keto-oxygen and oximo-nitrogen from the ligand IAI-, amino-nitrogen from substituted aniline and chlorine anion.
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Key words:
- cobalt(Ⅲ) complex
- / isonitrosoacetylacetoneimine
- / Schiff base
- / crystal structure
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