Electronic spectra and structure of methyl derivatives of 4-nitropyridine N-oxide

被引:0
|
作者
Wasylina, L [1 ]
Puszko, A [1 ]
机构
[1] Univ Econ, Dept Organ Chem, PL-53342 Wroclaw, Poland
来源
KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII | 2000年 / 06期
关键词
methyl-4-nitropyridine n-oxides; UV spectra; INDO calculations;
D O I
暂无
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The UV spectra of seven methyl derivatives of 4-nitropyridine N-oxide in ethanol have been examined. The electronic spectra were calculated by a modified INDO method. Transition energies, intensities and assignments were compared with UV spectra. Spectroscopic manifestations of intramolecular interaction indicate that methyl groups modify the electronic interaction between the N-oxide and NO2 groups mainly through a steric strain.
引用
收藏
页码:786 / 793
页数:8
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