HOMO-LUMO Interaction between Diene and Dienophile with an Electron-Withdrawing Group
Recently, the carbon-centered organic system with C-H hydrogen bonds is being examined and reported with particular focus on its chemical shifts. These properties are traditionally associated with the red shifted hydrogen bond due to the weak interaction of C-H hydrogen bonds. In a few cases, however, the strengthening of the C-H bond is characterized by the blue shift. In this study, organic-inorganic hybrid silica and fluorinated amorphous carbon films have been deposited on a p-type Si (100) substrate by inductively coupled plasma chemical vapor deposition. The reason for the chemical shift in the low dielectric constant materials with C-H hydrogen bonds was researched on, and the effect of the meso-structure of the films by the inverse electron demand Diels-Alder reaction of the C=C and C=O double bond was also studied.
Kwang Hwa Chung, Yong Hyeon Shin, Sue-Nie Park, Hyun Sook Cho, Soon-Ae Yoo, Byung Joo Min, Hyo-Suk Lim and Kyung Hwa Yoo
T. Oh et al., "HOMO-LUMO Interaction between Diene and Dienophile with an Electron-Withdrawing Group ", Key Engineering Materials, Vols. 277-279, pp. 983-989, 2005