In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Insight into polyacrylonitrile molecular structure from calculated vibrational frequencies and infrared intensities of model oligomers, published in 1994-11-01, which mentions a compound: 4553-62-2, mainly applied to polyacrylonitrile mol vibration model oligomer; IR intensity polyacrylonitrile mol vibration, SDS of cas: 4553-62-2.
RHF/3-21G vibrational frequencies and intensities are calculated for acrylonitrile dimers (S-2-methylglutaronitrile) and pentamers differing by their conformation and/or configuration to comprehend the influence of these 2 structural characteristics on the IR spectra of polyacrylonitrile chains. The isotactic pentamer tends to adopt a (TG)3 helix while for the syndiotactic configuration, 2 conformations of similar total energy are obtained. On the basis of these structures, it is found that the calculated IR spectra follow the reported exptl. trends. Of particular interest is the theor. verification of the exptl. observation made by M. Minagawa et al. (1988) that the intensity ratio between bands at 1230 and 1250 cm-1 depends on the stereochem. structure of polyacrylonitrile and provides a measure of their isotacticity percentage.
This literature about this compound(4553-62-2)SDS of cas: 4553-62-2has given us a lot of inspiration, and I hope that the research on this compound(2-Methylglutaronitrile) can be further advanced. Maybe we can get more compounds in a similar way.
Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com