Learning mode

Practice mode

Individual practice

Choose an analytical method and analyse one spectrum or correlation map to completion.

MS and HRMS individual practice

Within one problem, analyse the molecular ion, formula, DBE, isotopes, major fragments, neutral losses and compound class.

IR individual practice

For one spectrum, analyse major-band assignments, present and absent functional groups, and compound class.

¹H NMR individual practice

Assign every proton within one problem by integrating signal count, chemical shift, integration, multiplicity, J and spin systems.

¹³C NMR and DEPT individual practice

Integrate equivalent carbons, δC, CH₃/CH₂/CH/Cq and conventional, DEPT-90 and DEPT-135 data to assign all carbons.

2D NMR individual practice

Tabulate every cross-peak and integrate COSY, TOCSY, HSQC, HMBC and ROESY into a complete assignment.

Multinuclear NMR individual practice

Analyse ¹⁵N, ¹⁹F, ²⁹Si and ³¹P shifts, heteronuclear coupling, decoupling and integration with other spectra within one problem.

Individual practice

Spectral-analysis reference database

Search values, candidates and methods during analysis, using the database to verify evidence rather than memorise tables.

『有機化合物のスペクトルによる同定法』代替性

項目の網羅だけでなく、制約形成、仮説、検証、矛盾修正、完全帰属、情報不足の判断、付録参照という教育構造で比較した結果です。

Spectral-analysis glossary

Review concise definitions of the principal terms used in the learning pages.

Structures, stereochemistry and MS mechanisms

Build and check molecular graphs, R/S and E/Z assignments, anomers and electron flow.