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Spectroscopic study of phthalic anhydride and its thia, selena, and tellura analogues

โœ Scribed by A. Bigotto; V. Galasso; G. Pellizer; G. Distefano; G.C. Pappalardo; J. Bergman; L. Engman


Book ID
103907166
Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
882 KB
Volume
38
Category
Article
ISSN
1386-1425

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170 NMR data for sterically hindered phthalic anhydrides and phthalides showed unusual deshielding effects which were correlated with in-plane bond angle distortions (X-ray results and MM2 calculations); indicative of van der Waals repulsions. Table I. 170 NMR Data (21 ppm) for For both lb and lc, t