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EPR Equilibration Measurement of the C–H Bond Enthalpy in the Methylene Groups of 1,3,5-Trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (Irganox)

✍ Scribed by Sara Noemí Mendiara; Marta E. J. Coronel


Book ID
106220638
Publisher
Springer Vienna
Year
2009
Tongue
English
Weight
273 KB
Volume
38
Category
Article
ISSN
0937-9347

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## Abstract 1,2,3,4‐tetrachloro‐5,6,7,8‐tetrafluoro‐9‐methyltriptycene was studied in NMR spectra at low temperatures where the methyl group dynamics is frozen. Values of ^5^__J__(^19^F,^1^H), ^1^__J__(^13^C,^1^H), and ^2^__J__(^1^H,^1^H) for the individual methyl protons were measured. They are in