两种杯[6]芳烃的红外光谱和拉曼光谱研究

Infrared and Raman spectroscopic investigation of two calix[6] arenes

研究了两种对 -叔丁基杯 [6]芳烃的红外和拉曼光谱。对 -叔丁基杯 [6]芳烃 的环状的分子内缔合氢键和部分甲基化的 ( 1 ,3 ,5-三甲基 ) -对 -叔丁基杯 [6]芳烃 的三中心氢键在红外光谱中有明显反映 ,杯 [6]芳烃的 pinched cone(紧锥型 )构象也得到了证明。而两种杯

The infrared and Raman spectra of two p tert butylcalix[6] arenes are reported in this paper.The circular intramolecular hydrogen bonds of calix[6] arene Ⅰ( p tert butylcalix[6] arene) and the three centered hydrogen bonds of calix[6] areneⅡ(1,3,5 trimethylated calix[6] arene) were displayed in the infrared spectra.Moreover,the optional conformation of calix[6] arenes in the solid state which was called a pinched cone was determined with IR spectroscopy.Calix[6] arene Ⅰ and Ⅱ are all calix[6] arenes,however,the Raman spectra of calix[6] arene Ⅰ were very different from those of calix[6] arene Ⅱ,because the circular hydrogen bonds of calix[6] arene Ⅰ and the three centered hydrogen bonds of calix[6] arene Ⅱ appeared to have great effect on the molecular vibration.