Vibrational, NMR, photoelectron spectra and conformational analysis of seven-membered heterocycles

The article covered are the general principles of conformational analysis of 7-membered 1,3-dihetero-2-phosphepines and -silepines with one planar unit by means of spectral methods. The quantitative description of all possible conformers is given. Spectral criteria (the most informative bands in vib...

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Bibliographic Details
Published in:Journal of molecular structure 1990, Vol.218, p.21-26
Main Authors: Arshinova, R.P., Shakirov, I.Ch, Shagidullin, R.R., Egorova, L.V., Kadyrov, R.
Format: Article
Language:English
Subjects:
Atomic and molecular physics
Exact sciences and technology
Molecular properties and interactions with photons
Physics
Properties of molecules and molecular ions
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Summary:The article covered are the general principles of conformational analysis of 7-membered 1,3-dihetero-2-phosphepines and -silepines with one planar unit by means of spectral methods. The quantitative description of all possible conformers is given. Spectral criteria (the most informative bands in vibrational spectra, the shift difference and vicinal couplings in NMR spectra) for structural investigations are derived and on their basis the conformational condition is established depending on the nature of planar units and heteroatoms.
ISSN:0022-2860
1872-8014
DOI:10.1016/0022-2860(90)80238-F