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Infrared Spectroscopy

IR spectroscopy measures direct absorption of infrared photons by vibrational transitions, giving a functional-group fingerprint. It is the complementary technique to Raman, sensitive to polar bonds and strongly absorbed by water, where Raman is sensitive to polarizable bonds and largely water-transparent.

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Demerzel Video

Infrared Spectroscopy

IR spectroscopy measures direct absorption of infrared photons by vibrational transitions, giving a functional-group fingerprint. It is the complementary technique to Raman, sensitive to polar bonds …