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Stereospecificity of13C shielding constants in the13C NMR spectra of 3-substituted propynal oximes

✍ Scribed by A. V. Afonin; M. M. Demina; T. V. Kon’kova; A. V. Mareev; D. E. Simonenko; I. A. Ushakov; A. S. Medvedeva

Book ID
111464523
Publisher
SP MAIK Nauka/Interperiodica
Year
2007
Tongue
English
Weight
48 KB
Volume
43
Category
Article
ISSN
1070-4280

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Comparative analysis of 13C shielding co
Comparative analysis of 13C shielding constants stereospecificity in the silicon and germanium derivatives of acetylenic aldehyde and ketone oximes based on the 13C NMR spectroscopy and GIAO calculations
✍ Andrei V. Afonin; Dmitry V. Pavlov; Alexander V. Mareev; Dmitry E. Simonenko; Ig 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 100 KB

## Abstract In the acetylenic aldehyde oximes with substituents containing silicon and germanium, the ^13^C NMR signal of the C‐2 carbon of triple bond is shifted by 3.5 ppm to lower frequency and that of the C‐3 carbon is moved by 7 ppm to higher frequency on going from E to Z isomer. A greater lo