【摘要】 研究了Ｆｅ（Ⅲ）对脂肪酸~１３ＣＮＭＲ信号的影响．结果表明．Ｆｅ（Ⅲ）对脂肪酸~１３ＣＮＭＲ信号的影响的机理是电子自旋弛豫对核自旋弛豫的影响；产生这种影响的必要条件是Ｆｅ（Ⅲ）与脂肪酸之间的缔合．该影响沿化学键传递并随距离的增加而迅速衰减．破坏Ｆｅ（Ⅲ）与脂肪酸之间的缔合．可使这种影响消失．利用该现象可帮助某些化合物~１３ＣＮＭＲ信号的归属．并可对某些分子在溶液中的状态进行研究．更多还原

【Abstract】 The influence of Fo(Ⅲ) on 13c NMR signals of aliphatic acids was studied. It is shown that the machanism of the influence is the effect of electron spin relaxation on nuclear relaxation and the necessary factor of the influencc is the complexing between Fe(Ⅲ) and the aliphatic aled. It is indicated that the influence weakens rapidly with the increase of the distance. The normal spectra can be obtained by destroying the complexing between Fe(Ⅲ) and the aliphatic acid. This phenomenon can be used to help assign the 13C NMR spectra of some compounds. Fe(Ⅲ) may be used as a probe to study the behvaior of some organic compounds in solution.更多还原