Thermal stability of 2, 2, 6, 6-tetramethylpiperidine-1-oxyl (TEMPO) and related N-alkoxyamines

…, WB van Scheppingen, P Mulder

Index: Ciriano, Maria Victoria; Korth, Hans-Gert; Van Scheppingen, Wibo B.; Mulder, Peter Journal of the American Chemical Society, 1999 , vol. 121, # 27 p. 6375 - 6381

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Citation Number: 97

Abstract

The carbon-oxygen bond dissociation enthalpies, BDE (CO), in several N-alkoxyamine derivatives based on 2, 2, 6, 6-tetramethylpiperidine-1-oxyl (TEMPO) have been determined in the liquid phase by photoacoustic calorimetry. The BDE (CO) and the BDE (CH) in the corresponding hydrocarbons follow a linear correlation: BDE (CO)= 1.04 BDE (CH)-62.1 kcal mol-1. When an electronegative element adjacent to the CO bond is present, as in ...