ORGANIC CHEMISTRY SPECTROSCOPY EXAM -17 SOLVED

ORGANIC CHEMISTRY SPECTROSCOPY EXAM #17 SOLVED

Nuclear Magnetic Resonance (NMR) - correct answer determines the carbon-hydrogen
framework/connectivity

Mass Spectrometry (MS) - correct answer determines size and formula of a molecule

Infrared Spectroscopy (IR) - correct answer determines the presence of certain
functional groups & bonds

Ultraviolet Spectroscopy (UV-vis) - correct answer determines if a pi conjugated system
is present

Functional group region - correct answer 1500-4000 cm-1

Fingerprint region - correct answer 1500 cm-1

IR
O-H bonds - correct answer 3600-3200 cm-1

IR
N-H bonds - correct answer 3500-3200 cm-1

IR
Sp3 C-H bonds - correct answer 3000-2800 cm-1

IR
Sp2 C-H bonds - correct answer 3150-3000 cm-1

IR
Sp C-H bonds - correct answer 3300 cm-1

IR
C=-C (triple bond) - correct answer 2250 cm-1

IR
C=-N (triple bond) - correct answer 2250 cm-1

IR
C=O (double bond) - correct answer 1700 cm-1

IR
C=C (double bond) - correct answer 1650 cm-1

IR
Phenyl ring - correct answer 1600 cm-1, 1500 cm-1