含穴醚N8O3配体的金属大环化合物的NMR研究

在溶液中，室温下对含有穴醚Ｎ８Ｏ３配体（Ｈ３Ｌ）的金属大环化合物［Ｎａ（Ｈ３Ｌ）］（ＣｌＯ４）３Ｈ２Ｏ（２）和［Ｌａ（Ｈ３Ｌ）（ＯＨ）２］（ＣｌＯ４）３（３），作了１ＨＮＭＲ谱的测定，在化合物（２）－乙腈溶液中加入过量Ｌａ（ＣｌＯ４）３后的（２＋Ｌａ）和化合物（３）还作了１３Ｃ和１Ｈ－１ＨＣＯＳＹ（氢－氢相关二维谱）、１Ｈ－１３ＣＨＭＱＣ（氢核检测的异核多量子相干相关谱）及１Ｈ－１３ＣＨＭＢＣ（氢核检测的异核多键相关谱）的ＮＭＲ谱测定，归属了所有１Ｈ，１３Ｃ的谱线。对其配位行为通过１ＨＮＭＲ试验作了简单的讨论。

NMR Studies of Metal Cryptates with N8O3 Cryptands

The 1H NMR spectra of metal cryptates with N8 O3 ligand(H3 L)(1),H3 L)](ClO4)3 H2 O(2) and (ClO4)3(3), have been determined at room temperatures in solutions. The 13C and 1H _ 1H COSY spectra as well as the 1H-13C HMQC and 1H-13C HMBC spectra of compound(2) in an acetonitrile solution with an excess of La(ClO4)3 and compound(3) have been determined too. All the 1H _ and 13C _ related spectra of the complexes were assigned. The coordination behavior of the complexes in solutions is discussed on the basis of their 1H NMR spectra.