Relative thermodynamic stabilities of 1, 6-methano [10] annulene, dinorcaradiene, and the 1, 6-methano [10] annulene anion radical

GR Stevenson, SS Zigler

Index: Stevenson, Gerald R.; Zigler, Steven S. Journal of Physical Chemistry, 1983 , vol. 87, # 5 p. 895 - 898

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Citation Number: 3

Abstract

The enthalpies of reaction of both the solvated and solid salts of the potassium 1, 6-methano [lO] annulene (M10) anion radical were measured with calorimetric techniques. These measurements show that the anion radical of M10 has a surprising degree of thermodynamic stability. The heat of formation of K+ M10-.,,, from gas-phase potassium and gas-phase hydrocarbon (-61.9 kcal/mol) is about 16 kcal/mol more negative than that for ...