【摘要】 本文用络合平衡及快交换的方法定量描述了磷酸三乙酯（TEP）、四氢呋喃（THF）、二氧六环（DO）和乙腈（AN）水溶液中化学位移随浓度变化的曲线。发现体系中未配位水的¹H化学位移与其浓度的关系为:H₂O δ₀=1.07+3.71e^{k（0.018-1）/[H₂O]}_OK值与溶剂的供电性和分子量有关。溶剂破坏水结构的能力取决于它的供电性。更多还原

【Abstract】 In simulating the chemical shift-concentration curves of organic solvents in the binary mixtures of water with tetrahydrofuran, dioxane, acetonitrile and triethyl phosphate, the formation constants of 1:1 and 1:2 complexes were evaluated. With the constants thus obtained, the 1H chemical shifts of water were calculated which fit well to those observed, when the 1H chemical shift of un-combined water is expressed by: H2oδ0= 1.07 + 3.7lek(0.018-1/[H2O]),where k is a constant characterizing the basicity and molecular weight of the solvent. The degree of structural break of water by organic solvents depends on their basicities.更多还原