¹H NMR of toluene template

Toluene C₆H₅CH₃: aromatic multiplet δ 7.1–7.3 (5H) and the benzylic CH₃ singlet δ 2.3 (3H), with integrals and assignments.

What the template shows

• Aromatic protons near δ 7.2 and a benzylic methyl singlet near δ 2.3
• ¹H NMR spectrum of toluene
• toluene, C₇H₈ · CDCl₃, 400 MHz, typical values
• δ / ppm (chemical shift; downfield ← → upfield)
• Multiplets are drawn wider than to scale so the lines can be counted; the stepped traces are the integrals (height ∝ number of H).
• why there
• Ring current deshields aromatic H (δ 6.5–8.5); the o, m, p H overlap → multiplet
• Benzylic CH₃ (δ 2.2–2.5); no H on the ring carbon next to it → singlet
• Two signals, integrals 5 : 3 (C₇H₈).
• Aromatic H appear at δ 6.5–8.5 because the ring current deshields protons on the outside of the ring.
• In toluene the ortho, meta and para H have almost the same shift, so they overlap in one multiplet (m).
• A benzylic CH₃ (on the ring) comes at δ 2.2–2.5, downfield of an ordinary alkyl CH₃ (δ 0.9).
• A monosubstituted benzene ring usually integrates for 5H; a para-disubstituted ring often shows two doublets (2H each).
• Typical literature values; compare real spectra in SDBS · every part of this figure is editable

Drawn with 7 atoms, 90 shapes – every one editable in MolDraw.

Sources

• Pavia, Lampman, Kriz & Vyvyan, Introduction to Spectroscopy, 5th ed., Cengage 2015, ch. 3 Textbook
• SDBS Spectral Database for Organic Compounds (AIST) Database