GAS-PHASE-LIKE BEHAVIOR IN SOLUTION CHEMISTRY

被引:20
作者
ABBOUD, JLM
NOTARIO, R
BERTHELOT, M
CLARAMUNT, RM
CABILDO, P
ELGUERO, J
ELGHOMARI, MJ
BOUAB, W
MOKHLISSE, R
GUIHENEUF, G
机构
[1] Univ Nacl Educ Distancia, INST QUIM MED, E-28040 MADRID, SPAIN
[2] Univ Nacl Educ Distancia, DEPT QUIM ORGAN, E-28040 MADRID, SPAIN
[3] UNIV CADI AYYAD, FAC SCI, DEPT CHIM, MARRAKECH, MOROCCO
[4] UNIV NANTES, FAC SCI, SPECTROCHIM LAB, F-44072 NANTES, FRANCE
关键词
D O I
10.1021/ja00020a006
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Using data from this work and from the literature, the standard free-energy changes for reactions i and ii, DELTA-G(H+)(g) and DELTA-G-degrees-I2(soln), are compared: B(g) + H+(g) reversible BH+(g) (i); B(soln) + I2(soln) reversible B...I2(soln) (ii). B's are S(sp3) and N(sp2 and sp3) n-donor bases (all compounds for which data sets are extensive and reliable), spanning a range of DELTA-G(H+)(g) of ca. 65 kcal.mol-1. Within families, DELTA-G(H+)(g) and DELTA-G-degrees-I2(soln) are linearly related. Thus, a pattern of reactivity similar to that prevailing in the gas phase can be found in acid-base reactions in solution, provided charge dispersal through hydrogen bonding to the solvent is minimized.
引用
收藏
页码:7489 / 7493
页数:5
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