Name the two regions on the IR spectra. What are the three types of IR vibration

Question

Name the two regions on the IR spectra. What are the three types of IR vibrations? For the following compound please determine the number of different hydrogen groups. p-nitrobenzoic acid _________ 1-bromobenzeno __________ p-nitrotoluene ___________ 1-butanol ______________ 2-chloro-2-methylpropane ____________ bromocyclopentane _______________ In synthesis of p-nitrobenzoic acid what was the indicator that determined the reaction could be stopped? In synthesis of p-nitrobenzoic acid what was the indicator that determined the reaction was complete? When should you discard the fractions from separatory extractions? Describe Sn1 reactions (Write mechanisms and give explanations)

Explanation / Answer

IR spectrum can be expressed as two approximate regions:

4000-1000 cm-1 known as the functional group region, and

< 1000 cm-1 known as the fingerprint region

Three types of IR vibrations are

Streching

Inplane Bending

Outplane Bending

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