19fnmr和31pnmr化学位移基础数据(含偶合常数)

19F NMR 和31P NMR化学位移基础数据(含偶合常数)) Table of Chemical Shift Ranges Type of Compound Chemical Shift Rang

19FNMR和31PNMR化学位移基础数据(含偶合常 数)) TableofChemicalShiftRanges TypeofCompound ChemicalShiftRange(ppm) RelativetoneatCFCl3 -F-C=O-70to-20 -CF3-+40to+80 -CF2-+80to+140 -CF-+140to+250 -ArF-+80to+170 ChemicalShiftTable Forcertaincompounds,thelistedchemicalshiftpertainstotheF showninbold.Theprimaryreferencesforthesevaluesare: 1)the1991BrukerAlmanac,and 2)CompilationofreportedF19NMRchemicalshifts,1951to mid-1967byClaude H.DunganandJohnR.VanWazer.