摘要
用ＵＶ、ＩＲ研究了酸度对水杨醛缩异烟肼酮式烯醇式互变及其配位性能的影响．研究表明：固态物以酮式为主要存在形式且存在分子内氢键，溶解后，酮式与烯醇式的比例依溶液酸度而异，当ＨＣｌ浓度＞７１１６×１０－３ｍｏｌ／Ｌ时，以共轭体系较小的酮式存在，当ＮａＯＨ浓度＞４１４×１０－３ｍｏｌ／Ｌ时则以共轭体系较大的烯醇式存在．通过对其Ｃｕ（Ⅱ）配合物的合成与表征，证明当ＨＣｌ浓度＜００５ｍｏｌ／Ｌ时可合成１∶１型配合物，仅当ＨＣｌ浓度≥００５ｍｏｌ／Ｌ时。
The acidity effects on the keto or enol form and the coordinating capability of Nisonicotinanidosalicylaldimine were studied by infrared spectra and ultravioletvisible spectrum. It showed that in soild state the keto form was the maim form and in solution a mixed state of keto and enol form was existed. When cHCl>7116×10-3 mol·L-1 in solution, the keto form was the only form. When cNaOH≥414×10-3 mol·L-1 the enol form was the only form. The preparation and characterization of Cu(Ⅱ) complexes indicated that when cHCl<005 mol·L-1 the ML was obtained and When cHCl≥005 mol·L-1the ML2 was obtained.
出处
《湖北大学学报（自然科学版）》
CAS
1997年第4期376-378,共3页
Journal of Hubei University：Natural Science
关键词
水杨醛缩异烟肼
酮式-烯醇式
配位性能
酸度
Nisonicotinamidosalicylaldimine
Keto form enol form
Coordinating capability
