Crown ethers analogues and their complexes with NaSCN:: Stoichiometry and stability constants determined by 13C NMR spectroscopy

被引：3

作者：

Alstanei, AM

Bendic, C

Carles, M

Aycard, JP

机构：

[1] Univ Aix Marseille 1, Lab Spect & Mol Dynam, UMR 6633, F-13397 Marseille 20, France

[2] Univ Bucharest, Fac Chem, Dept Phys Chem, Bucharest, Romania

来源：

JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY | 2000年 / 37卷 / 1-4期

关键词：

crown ethers analogues; 12-crown-4; 15-crown-5; Na+ ion; complex stability; C-13; NMR; X-ray diffraction;

D O I：

10.1023/A:1008150826404

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

C-13 NMR spectroscopy was used to study the complexation reaction between sodium ion and 12-crown-4, 15-crown-5, methylurazolyl-12-crown-4 and methylurazolyl-15-crown-5 in CD3OD solutions. The type of complexes, the stability constants and the relative chemical shifts have been established by fitting experimental titration curves with theoretical functions of the observed chemical shifts. The single-crystal X-ray diffraction measurements for a new crystalline complex confirmed the stoichiometry of the complex.

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收藏

页码：423 / 440

页数：18

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