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WAChemistryQuick questions

Unit 4: Organic Chemistry and Chemical Synthesis

Quick questions on Infrared spectroscopy: WACE Year 12 Chemistry

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What are diagnostic absorption bands?
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The bands you must recognise (values are approximate ranges from the data table) include:
What is the fingerprint region?
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The region below about 1500 cm1^{-1} is the fingerprint region, a complex pattern unique to each compound. It is too complex to assign band by band, but it can confirm identity by matching against a reference spectrum of a known compound.

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