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Additivity rule for the softness parameter in alkali halides

✍ Scribed by Jai Shanker; D.P. Agrawal; Ram Pal Singh


Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
221 KB
Volume
31
Category
Article
ISSN
0038-1098

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The role of aromatic groups in the Tobey
✍ Henry J. Shine; Paramashivappa Rangappa 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 171 KB

## Abstract The Tobey–Simon (additivity) rule for aromatic groups which was devised about 40 years ago has been found to need revision. The rule shows an aromatic group attached to a CC double bond as causing a downfield chemical shift of a __cis__‐related vinylic proton and a small upfield shift