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Assessment of substituent effects for ortho-nitrobenzenes and 2,4-dinitrobenzenes by IR and 17O NMR spectroscopy

✍ Scribed by Alexander Perjéssy; Danuta Rasala; Ryszard Gawinecki; David W. Boykin


Book ID
103213190
Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
511 KB
Volume
382
Category
Article
ISSN
0022-2860

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17O NMR spectroscopy of 4-substituted py
✍ D. W. Boykin; A. L. Baumstark; P. Balakrishnan 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 309 KB

## Abstract The ^17^O chemical shifts for 4‐substituted pyridine __N__‐oxides at natural abundance were measured in acetonitrile at 50°C. Electron withdrawing groups caused deshielding and electron donating groups caused shielding of the ^17^O resonance. The data are correlated with ^17^O chemical