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They include IR, NMR, UV, and Mass Spectrometry.
It measures molecular vibrations from IR radiation absorption.
It examines spin rotational changes in nuclei.
It reports on electronic transitions and conjugation.
It identifies molecular formulas based on mass-to-charge ratios.
Energy is inversely proportional to wavelength.
Electrons are excited to higher energy levels.
IR focuses on molecular vibrations, while UV focuses on electronic transitions.
It reflects the functional groups present in the molecule.
It quantifies how strongly a substance absorbs light at a given wavelength.
Measures light absorption as a function of wavelength.
Graph of light transmitted or absorbed versus wavelength.
Qualitative determination of substances.
Determines functional groups in compounds.
Dipole moment must change during vibration.
They exhibit little to no change in dipole moment.
Vibrational changes occur, causing peaks in the spectrum.
They vibrate like springs, allowing for absorption measurement.
They lead to strong absorption bands in the spectrum.
They require only small amounts of sample for analysis.