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通过取代的邻羟基二苯甲酮肟在不同浓度水平的羟基伸缩振动v_(OH)的现象来鉴别和证实其顺式或反式异构体.反式的邻羟基二苯甲酮肟类随着溶液的稀释,肟羟基被游离出来在3580cm~(-1)产生吸收,而酚羟基与肟基上的氮原子形成稳定的共轭六元环,表现为与v_(OH)重叠的多重峰.顺式的邻羟基二苯甲酮肟类随着溶液的稀释,酚羟基被游离出来在3580cm产生吸收,而肟基形成分子间二聚缔合体,表现为3200cm~(-1)附近较强的宽吸收峰.红外光谱说明反式邻羟基二苯甲酮肟类的铜络合物结构可能为二分子的螯合剂互成反式与一个铜离子结合成为一个稳定的络合物.
The cis- or trans-isomers were identified and confirmed by substituting o-hydroxybenzophenone oxime at different concentrations of hydroxyl stretching vibration v_ (OH). The trans o-hydroxybenzophenone oximes With the dilution of the solution, the oxime hydroxyl groups are liberated to produce absorption at 3580cm -1, while the phenolic hydroxyl group and the nitrogen atom on the oxime group form a stable conjugated six-membered ring, which shows multiple peaks overlapping with v_ (OH) With the solution of cis - o - hydroxybenzophenone oxime class, the phenolic hydroxyl group is liberated at 3580cm to produce absorption, while the oxime group forms an intermolecular dimeric association, showing strong around 3200cm -1 Of the absorption peak of the infrared spectrum of trans-hydroxybenzophenone oxime class copper complex may be two molecules of chelator inter-acting trans and a copper ion combined into a stable complex.