期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 10, 期 4, 页码 879-886出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/a908941a
关键词
-
A detailed study of the oxidative cyclodehydrogenation of two oligophenylene precursors resulting in large polycyclic aromatic hydrocarbons (PAHs) which contain up to 42 carbon atoms gave insight into the reaction course. This study confirmed that the reaction occurs exclusively in an intramolecular fashion without the formation of organic side products. X-Ray diffraction, selected area electron diffraction, and low-dose high-resolution electron microscopy were used to analyse the effect of heat treatment and sublimation on the morphology and crystal structure of large PAHs, hexabenzo[bc,ef,hi,kl,no,qr]coronene (HBC) and dibenzo[fg,ij]phenanthro[9,10,1,2,3-pqrst]pentaphene (DBPP). HBC crystallizes in the gamma-motif, as has been determined from single crystals previously. The experiments showed that small crystals exhibit some characteristic distortions of the unit cell. DBPP also crystallizes also in the gamma-motif, but due to the double-bay area in the periphery of the molecule channels with a diameter of about 4 Angstrom are formed in the crystal.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据