引用本文:
鲁桂, 姚克敏, 沈联芳. Ln(Ⅲ)-Co(Ⅱ)与双水杨醛缩乙二胺Schiff碱异核配合物的合成与波谱性质[J]. 应用化学,
1998, 15(5): 1-5.
Citation: Lu Gui, Yao Kemin, Shen Lianfang. Synthesis and Magnetic Resonance Spectra of Heteronuclear Ln(Ⅲ)-Co(Ⅱ) Complexes with Bis-salicylaldehyde Ethylenediamine Schiff Base[J]. Chinese Journal of Applied Chemistry, 1998, 15(5): 1-5.
Citation: Lu Gui, Yao Kemin, Shen Lianfang. Synthesis and Magnetic Resonance Spectra of Heteronuclear Ln(Ⅲ)-Co(Ⅱ) Complexes with Bis-salicylaldehyde Ethylenediamine Schiff Base[J]. Chinese Journal of Applied Chemistry, 1998, 15(5): 1-5.
Ln(Ⅲ)-Co(Ⅱ)与双水杨醛缩乙二胺Schiff碱异核配合物的合成与波谱性质
English
Synthesis and Magnetic Resonance Spectra of Heteronuclear Ln(Ⅲ)-Co(Ⅱ) Complexes with Bis-salicylaldehyde Ethylenediamine Schiff Base
Abstract:
A series of heteronuclear Ln(Ⅲ)-Co(Ⅱ) and Co(Ⅱ) complexes with bis-salicylaldehyde ethylenediamine(SALEN) have been synthesized. They were characterized as LnCo(SALEN)2(NO3)5 ° 2H2O(Ln=La,Nd,Sm,Gd,Yb,Y) and Co(SALEN)(NO3)2 ° 3H2O respectively. The differences between their compositions, structures and coordinations have been investigated by UV, IR, especially by 1H NMR and EPR spectra. The EPR spectra of the GdCo(SALEN)2(NO3)5 ° 2H2O complex in powder and various solvents at different temperatures and the "U" spectral feature, crystal-field strength and local symmetry around Gd3+ have been discussed.
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Key words:
- heteronuclear lanthanide complexes
- / Schiff base
- / NMR
- / EPR
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