Organic · Spectroscopy
Organic Spectroscopy for Structure Determination
Exam-focused revision notes on Organic Spectroscopy for Structure Determination for CSIR-NET Chemical Sciences, GATE Chemistry and IIT-JAM — the core concepts, the formulas worth memorising, the traps that cost marks, and a quick-recall table.
Start with the degree of unsaturation
Before touching a spectrum, compute how many rings plus π bonds the molecular formula demands. It constrains everything that follows.
What this note covers
- 1Start with the degree of unsaturation
- 2IR — which bonds are present (key stretches)
- 31H NMR — how many, what type, who's next door
- 413C NMR — the carbon skeleton
- 5Mass spectrometry — molecular weight & fragments
- 6Common traps students miss
- 730-second recall — IR bands
- 830-second recall — 1H NMR shifts
Read the full note
The remaining 7 sections — including the worked examples, the common-traps list and the quick-recall table — are part of ChemVidya Full Access, along with 6,000+ practice questions.
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