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前文报导在分子中含有苯基呋喃环结构的一些戊二烯酮的合成。初步试验表明这类化合物可能成为具有新特点的光引发剂而用于感光树脂体系。因此,就其电子光谱与分子结构的关系作进一步的考查应是有实际意义的。Р.К.Магдеева等曾研究过在4—位有给电子基,而在4′—位或3′—位有硝基的双苯亚甲基丙酮(Dibezalacetones,缩写为DBA,即1,5一二苯基—1,4一戊二烯一3一酮类)的电子光谱。认为这些化合物电子光谱的四个谱带是由分子中顺极化的AK体系和逆极化的BK体系的叠加造成。而取代基的电子效应等对偶极结构的影响使谱带变化呈现出某些规律性。
The foregoing reports on the synthesis of some of the pentoprenones that contain phenylfuran ring structures in the molecule. Preliminary experiments show that these compounds may become a new feature of the photoinitiator for the photosensitive resin system. Therefore, further examination of the relationship between its electronic spectrum and molecular structure should be of practical significance. Р.К.Магдеева et al have studied in the 4-position to give the electron-based, and in the 4’-position or 3’-position with nitrobenzene dibenzylidene acetone (Dibezalacetones, abbreviated DBA, 1,5 Diphenyl-1,4-pentadiene-3-ketones). The four bands of the electron spectra of these compounds are believed to result from the superposition of the cis-polarized AK system and the reversed-polarized BK system. The effects of substituents such as the electronic effect on the dipole structure of the band showed some regularities.