Crystallographic studies on sterically affected chemical species
✍ Scribed by T. M. Krygowski; R. Anulewicz; T. Daniluk; T. Drapała
- Book ID
- 105169404
- Publisher
- Springer
- Year
- 1990
- Tongue
- English
- Weight
- 608 KB
- Volume
- 1
- Category
- Article
- ISSN
- 1040-0400
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## Abstract A series of the monocyclic organophosphorus compounds ([o‐OC(CH~3~)~2~C~6~H~4~]PPh(CH~2~ Ph)X) bearing a halogen (__X__ = F, Cl, and Br) or a tetrafluoroborate (__X__ = BF~4~) were synthesized. The solid‐state structures of the bromide, the tetrafluoroborate, and an analogous fluoride (
## Abstract ^13^C NMR of diastereoisomeric pairs of 2,3‐diaryl‐2‐methylbutyronitriles revealed a difference in the chemical shift of the carbon atoms between the diastereoisomers and the observed shifts were greatly influenced by the presence of an __ortho__ substituent in the 3‐phenyl ring.