The 'H NMR, 13C NMR and mass spectra of an unknown compound provide the following information: Proton NMR signals: Triplet at 1.3 ppm, ratio = 3 Multiplet at 1.9 ppm, ratio = 2 Triplet at 2.8 ppm, ratio = 2 Doublet at 7.1, ratio 2 Doublet at 7.4, ratio = 2 Carbon NMR signals: 7 separate signals indicating the presence of 9 carbon atoms· Mass spectrum: M+ = 198; M+2 = 200; ratio 1:1 What is this unknown.compound? 2-Bromo-1-methyl-benzene Propylbenzene 2,4,6-Trichloro-ethyl-benzene O 4-Bromo-propyl-benzene O 1-Amino-4-bromo-benzene
The 'H NMR, 13C NMR and mass spectra of an unknown compound provide the following information: Proton NMR signals: Triplet at 1.3 ppm, ratio = 3 Multiplet at 1.9 ppm, ratio = 2 Triplet at 2.8 ppm, ratio = 2 Doublet at 7.1, ratio 2 Doublet at 7.4, ratio = 2 Carbon NMR signals: 7 separate signals indicating the presence of 9 carbon atoms· Mass spectrum: M+ = 198; M+2 = 200; ratio 1:1 What is this unknown.compound? 2-Bromo-1-methyl-benzene Propylbenzene 2,4,6-Trichloro-ethyl-benzene O 4-Bromo-propyl-benzene O 1-Amino-4-bromo-benzene
Chapter13: Structure Determination: Nuclear Magnetic Resonance Spectroscopy
Section13.SE: Something Extra
Problem 59GP: The mass spectrum and 13C NMR spectrum of a hydrocarbon are shown. Propose a structure for this...
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![The 'H NMR, 13C NMR and mass spectra of an unknown compound provide the following information:
Proton NMR signals:
Triplet at 1.3 ppm, ratio = 3
Multiplet at 1.9 ppm, ratio = 2
Triplet at 2.8 ppm, ratio = 2
Doublet at 7.1, ratio = 2
Doublet at 7.4, ratio = 2
Carbon NMR signals:
7 separate signals indicating the presence of 9 carbon atoms·
Mass spectrum:
M+ = 198; M+2 = 200; ratio 1:1
What is this unknown.compound?
2-Bromo-1-methyl-benzene
Propylbenzene
O 2,4,6-Trichloro-ethyl-benzene
O 4-Bromo-propyl-benzene
O 1-Amino-4-bromo-benzene](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcf8e7eb5-45a4-4b93-9451-0e8a8ddcea3b%2F845dd5ea-69bc-4a2a-9b9e-6afbaf7124d0%2Fzgu2yqa_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The 'H NMR, 13C NMR and mass spectra of an unknown compound provide the following information:
Proton NMR signals:
Triplet at 1.3 ppm, ratio = 3
Multiplet at 1.9 ppm, ratio = 2
Triplet at 2.8 ppm, ratio = 2
Doublet at 7.1, ratio = 2
Doublet at 7.4, ratio = 2
Carbon NMR signals:
7 separate signals indicating the presence of 9 carbon atoms·
Mass spectrum:
M+ = 198; M+2 = 200; ratio 1:1
What is this unknown.compound?
2-Bromo-1-methyl-benzene
Propylbenzene
O 2,4,6-Trichloro-ethyl-benzene
O 4-Bromo-propyl-benzene
O 1-Amino-4-bromo-benzene
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