河北医科大学药学院2018 Karplus Equation ）中=175 (CH3)3C- 3。=35HzJ=4.0H2 3,=12.0H2 cis-4-tert-butyl-1-chlorocyclohexane trans-4-tert-butyl-1-chlorocyclohexane 407 C1 H3Y Figure 1.Three-and two-bond homo-and heteronuclear coupling constants 408 天然药物化学教研室史清文教授 4 河北医科大学药学院2018 天然药物化学教研室史清文教授 4 Karplus Equation 407 Figure 1. Three- and two-bond homo- and heteronuclear coupling constants. 408