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A Note on Internal Rotation about the C-C Bond in 1, 1, 2-Trisubstituted Ethanes of the Type XCH_2CHX_2

XCH_2-CHX_2型1,1,2-三取代乙烷分子碳-碳單鍵內轉研究附記

摘要


本文提供用以決定XCH_2CHX_2型乙烷取代物AB_2 NMR譜林位偶合常數有關的Karplus方程式中特性常數A值之新方法以替代前著中舊方法。該新方法能夠提供更接近於依液體試料-紅外析收光譜法所求出之△"E"值。

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並列摘要


A novel method of determining the value of characteristic constant A in the refined Karplus equation for the vicinal coupling constant in AB_2 spectra of XCH_2CHX_2 was proposed to substitute the method introduced in the previous paper. The present method could yield a fairly closed value of AE to that obtained by the liquid IR methods.

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