QUANTITATIVE ANALYSIS OF ZIGZAG AND ARMCHIR EDHES ON CARBON MATERIALS WITH/WITHOUT PENTAGONS USINH INFRARED SPECTROSCOPY

摘要

Infrared spectroscopy(IR)is one of analytical methods to determine edge structure of carbon materials(Figure 1).Out-of-plane sp~2C-H bending vibrations on four types of edge structures have been assigned as SOLO,DUO,TRIO,and QUATRO.1 In addition,in-plane sp~2C-H stretching vibration has been calculated to define the edge structures.However,the reported work determines the peak positions by only calculation.Our group has recently studied analyses of structurally controlled carbon materials using IR,but the accurate assignment is still necessary.In this work,the peak positions of sp~2C-H bending and stretching vibration of various edge structure were estimated by analyzing reference aromatic compounds composed of either only hexagonal rings or hexagonal and pentagonal rings using IR.