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Citation:
Wang Gui-Chang, Cai Zun-Sheng, Gao Qing-Yu, Zhao Xue-Zhuang. A Polarity Modification of Benson's Group Additivity Method[J]. Acta Physico-Chimica Sinica,
;1997, 13(03): 274-277.
doi:
10.3866/PKU.WHXB19970317
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An empirical method for estimating the standard enthalpy of some polar compounds is presended in this paper, that is
△△fH°(RX/CH3X)= △fH°(RX)- △fH°(CH3X)=a+bIx
where △△fH°(RX/CH3X) represents the standard enthalpy difference between CH3-X and R-X(R=Et, i-Pr, t-Bu, etc). It is a new polarity parameter defined by us. A od result was obtained for nearly 70 polar compounds. -
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