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4,5-二氮杂芴-9-酮2-萘甲酰腙(HL)及其配合物PbL2的NMR研究(英文)
NMR STUDIES ON 4,5-DIAZAFLUORENE-9-ONE 2-NAPHTHOYLHYDRAZONE (HL) AND ITS COMPLEX PbL2
【摘要】 本文报道了 4 ,5 二氮杂芴 9 酮 2 萘甲酰腙 (HL)及其配合物PbL2 的合成及其1H和1H 1HCOSYNMR表征 .在PbL2 中配体以烯醇式配位 ;由于受到亚胺氮孤对电子的屏蔽 ,二氮杂芴环上的质子具有不等价性
【Abstract】 Diazafluorene9one 2naphthoylhydrazone (HL) and its complex PbL\-2 have been prepared and characterized by \{\}\+1H and \{\}\+1H\{\}\+1H COSY NMR, which suggest that the ligand coordinates to the metal ion in the enol form. The diazafluorene protons of both compounds show interesting non equivalent chemical shifts resulted from the shielding effect of the lone pair of electrons on the azomethine N atom.
【关键词】 4,5二氮杂芴-9-酮2-萘甲酰腙;
1HNMR;
1H-1HCOSY;
烯醇式;
屏蔽;
【Key words】 Diazafluorene 9 one 2naphthoylhydrazone; \{\}\+1H NMR; \{\}\+1H\{\}\+1H COSY; Enol form; Shielding effect;
【Key words】 Diazafluorene 9 one 2naphthoylhydrazone; \{\}\+1H NMR; \{\}\+1H\{\}\+1H COSY; Enol form; Shielding effect;
- 【文献出处】 波谱学杂志 ,CHINESE JOURNAL OF MAGNETIC RESONANCE , 编辑部邮箱 ,2000年04期
- 【分类号】O657.2
- 【被引频次】2
- 【下载频次】136