What’s on the Infrared Spectroscopy poster
A 7-row table: Bond · Wavenumber · Appearance.
Wavenumbers in cm⁻¹.
- O-H (carboxylic acid) — 2500–3300 — Very broad
- O-H (alcohol) — 3230–3550 — Broad
- N-H (amine) — 3300–3500 — Medium, often two peaks
- C-H — 2850–3100 — Sharp, always present
- C≡N — 2220–2260 — Sharp, distinctive
- C=O — 1680–1750 — Strong and sharp
- C=C — 1620–1680 — Weak
The fingerprint region below 1500 cm⁻¹ is unique to each compound and is used for identification by matching, not interpretation.
Questions about the Infrared Spectroscopy poster
- What’s on the Infrared Spectroscopy poster?
- A 7-row table: Bond · Wavenumber · Appearance. Wavenumbers in cm⁻¹. O-H (carboxylic acid) — 2500–3300 — Very broad; O-H (alcohol) — 3230–3550 — Broad; N-H (amine) — 3300–3500 — Medium, often two peaks; C-H — 2850–3100 — Sharp, always present; C≡N — 2220–2260 — Sharp, distinctive; C=O — 1680–1750 — Strong and sharp; C=C — 1620–1680 — Weak. The fingerprint region below 1500 cm⁻¹ is unique to each compound and is used for identification by matching, not interpretation.
- Who is the Infrared Spectroscopy poster for?
- Infrared Spectroscopy belongs to the Chemistry section rather than to a school year, because physical science is not something one grade owns. Anyone learning analytical can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Infrared Spectroscopy poster?
- IR identifies functional groups. Learn six bands and most questions are answerable. A wall chart earns its place by being glanceable from where the work is happening, so Infrared Spectroscopy belongs on the wall where that physical science work actually happens, within glancing distance, rather than filed away.
- What other posters go with Infrared Spectroscopy?
- Calibration, Indicators and Chromatography Methods sit alongside Infrared Spectroscopy in the Chemistry section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.CalibrationIndicatorsChromatography Methods
- Is the Infrared Spectroscopy poster free to download and print?
- Yes. Infrared Spectroscopy downloads as a free PDF with no account, no email and no watermark, like everything else in the Chemistry section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Infrared Spectroscopy poster print at?
- Infrared Spectroscopy is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Infrared Spectroscopy loses nothing.Printing guide
Related posters
Charts that sit alongside Infrared Spectroscopy on the same wall.
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