[Influence of substituents on IR spectrum of aromatic amines in different solvents].
The 21 aromatic amines in different solvents are studied by FTIR, and the influence of substituents on the vibrational absorption, symmetric stretching frequency(nu s) and anti-symmetric stretching frequency(nu as) is investigated. The substituent of methyl has different electrical effects in organic solvent with various polarities. The electric effects of methoxy in ortho-position differ from that in meso-position. The functional groups of chloro- and nitro-cause the nu as and nu s of amino group a hyposochromic shift, while substituent of-NH2 makes the nu as and nu s of amino group a bathochromic shift.
Xie
M
M
Analytical and Testing Center, Beijing Normal University, 100875 Beijing.
Liu
Y
Y
Deng
Z
Z
D000588:Amines / Q000737:chemistry*; D001554:Benzene / Q000737:chemistry*; D012997:Solvents; D013055:Spectrophotometry, Infrared
D000588:Amines; D012997:Solvents; D001554:Benzene