Photolysis of 3-(2-Formylphenyl)-3-chlorodiazirine in an Ar Matrix at Low Temperature
作者:Norio Nakane、Tomonori Enyo、Hideo Tomioka
DOI:10.1021/jo049802t
日期:2004.5.1
Photolysis of 3-(2-formylphenyl)-3-chlorodiazirine in an Ar matrix at 13 K was monitored by IR and UV−vis spectroscopies. Characterization of the products was carried out by comparing the spectra with the theoretical IR spectra obtained by using DFT, which suggested that anti,anti-2-formylphenyl(chloro)carbenes (a,a-2), ketenes (syn- and anti-3), chlorobenzocyclobutenone (4), and chloroisobenzofurane
通过红外光谱和紫外可见光谱法监测在13 K下Ar基质中3-(2-甲酰基苯基)-3-氯二嗪的光解反应。通过将光谱与使用DFT获得的理论IR光谱进行比较来表征产物,这表明抗,抗-2-甲酰基苯基(氯)碳烯(a,a - 2),烯酮(顺式和反式- 3)形成氯苯并环丁烯酮(4)和氯异苯并呋喃(5)。这表明卡宾2与甲酰基中的氢和氧相互作用。当矩阵包含一个,使a - 2在13 K的黑暗中静置,观察到由于抗酮3导致的谱带以2为代价逐渐增加。与它的protio类似物相反,氘代的卡宾2 - d在protio类似物明显衰变的时间范围内,无论是2 - d的衰变还是3 - d的增长都几乎没有变化。这些观察是用量子力学隧穿机制来解释的。