PMR Studies of 2, 6-DI-tert-Butylphenol Hydrogen Bonding with Some Proton Acceptors in Cyclohexane

在環己烷溶媒中2,6二第三丁基酚與若干質子接受體間氰鍵聚合之質子磁共振的研究

林萬寅(Wann-Yin Lin) ； 陳振興(Jenn-Shin Chen) ； 林渭川(Wei-Chuwan Lin)

《中央研究院化學研究所集刊》 28期 (1981/03) Pp. 37-41

https://doi.org/10.6522/BICAS.1981.28.4

摘要

在若干溫度下以環己烷為溶媒溶有質子接受體與2，6－二第三丁基分之溶液中觀測羥基質子之化學差移。利用前報之反覆漸近法求得氫鍵聚合之平衡常數及氫鍵錯合物之化學差移。本項研究並用平衡常數之溫度變化求取氫鍵聚合平衡之熱力學參數之值。質子磁共振實驗顯示各種氫鍵錯合物所含羥基質子之化學差移均隨溫度變化而變化。

並列摘要

The -OH proton chemical shifts of 2, 6-di-tert-butylphenol in the solutions with eight different proton acceptors were measured in cyclohexane medium at different temperatures. The association constants and the chemical shifts of hydrogen bonded complexes were determined by the iterative method previously reported. The thermodynamic data for hydrogen bonding were also determined. The value of the -OH proton chemical shift for a given hydrogenbonded complex was found to be temperature dependent.