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17 Nov 2019
If two signals in an NMR spectrum differ by 2.00 ppm in a 500-MHz spectrometer, how do they differ in a 100-MHz spectrometer? Show your work for credit. How many^1H NMR signals would you expect from each of the following compounds: 1-bromobutane CH_2=CHBr (CH_3)_2C=CH_2 2, 2, 3, 3-Tetrabromobutane The^-H NMR signal for a compound appears at 2000 Hz when recorded on a 200-MHz NMR spectrometer. What is the chemical shift for this proton? What would be the chemical shift in (a) ppm and (b) Hz. if the spectrum were recorded on a 500-MHz instrument?
If two signals in an NMR spectrum differ by 2.00 ppm in a 500-MHz spectrometer, how do they differ in a 100-MHz spectrometer? Show your work for credit. How many^1H NMR signals would you expect from each of the following compounds: 1-bromobutane CH_2=CHBr (CH_3)_2C=CH_2 2, 2, 3, 3-Tetrabromobutane The^-H NMR signal for a compound appears at 2000 Hz when recorded on a 200-MHz NMR spectrometer. What is the chemical shift for this proton? What would be the chemical shift in (a) ppm and (b) Hz. if the spectrum were recorded on a 500-MHz instrument?
Lelia LubowitzLv2
9 Jan 2019