Chemische Berichte

Thermische Stabilität von 9, 9′??Bixanthen und 9, 9′, 10, 10′??Tetrahydro??10, 10, 10′, 10′??tetramethyl??9, 9′??bianthracen Stabilisierungsenergie planarer …

C Herberg, HD Beckhaus, C Rüchardt

文献索引：Herberg, Clemens; Beckhaus, Hans-Dieter; Ruechardt, Christoph Chemische Berichte, 1994 , vol. 127, # 10 p. 2065 - 2072

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被引用次数: 8

摘要

The thermal cleavage of the central CC bonds in the title ASDiss, as expected. The radical stabilisation enthalpies RSE compounds was investigated. The activation parameters obtained from these data (RSE:? a= 17.9 k 1.3;? b= 15.6 t were obtained from kinetics and the equilibrium enthalpies 1.4 kcal/mol) correspond closely to twice the RSE of a-phenyand entropies from the temperature dependence of the equi-lethyl radicals (8.0 k 1.5 kcal/mol) ...