THE STUDY BY THE METHODS OF INFRARED SPECTROSCOPY OF THE STRETCHING AND TWISTING VIBRATIONS OF CHEMICAL BONDS IN FUNCTIONAL GROUPS OF ORGANIC COMPAUNDS CONTAINED IN GRAINS OF MAIZE INBRED LINESстатья
Аннотация:The infrared spectroscopy was applied on kernels of the following maize inbred
lines with significant traits: ZPPL 186, ZPPL 225 and M1-3-3 Sdms, with the aim
to determine structural properties of organic compounds and their unstable state.
The set hypothesis was that it was necessary to observe the existence of numerous
and different spectral bands, not studied so far, occurring in various patterns (bands
of low intensity, single or grouped) and to explain the nature and the dynamics of
their formation. Such spectral bands were observed in the wave number range of
400—2925 cm—1 and are caused by the different types of vibration movements
(valence and deformation vibrations) of organic compounds: alkenes, aromatic
compounds, alcohols, ethers, carboxylic acids, esters, amines, amides, alkanes,
nitro compounds, ketones, aldehydes, alkynes, nitriles and phenols. In this way, it
is possible to establish not only the structure of organic compounds of kernels of
observed maize inbred lines, but also it is possible to point out to their unstable,
conformational and functional properties. The importance of intensity, shape and
kinetics of spectral bands expressing unstable processes in biological systems and
bioactive organic molecules, has been studied and emphasised for the first time.