Q8Engineering Chemistry

In advanced analytical chemistry, the strictly categorized Infrared (IR) spectrum is physically utilized to systematically analyze molecular vibrations and identify unknown functional groups.

• Near-Infrared (NIR): Strictly spans exactly $0.78\mu \text{m}$ to $2.5\mu \text{m}$ (wavenumber $12800-4000{\text{ cm}}^{-1}$).
• Mid-Infrared (MIR): Strictly spans exactly $2.5\mu \text{m}$ to $50\mu \text{m}$ (wavenumber $4000-200{\text{ cm}}^{-1}$). This is the absolute most analytically critical region universally used for standard organic structural analysis and distinct functional group identification.
• Far-Infrared (FIR): Strictly spans exactly $50\mu \text{m}$ to $1000\mu \text{m}$ (wavenumber $200-10{\text{ cm}}^{-1}$). Often utilized for analyzing heavy metal-ligand coordinate bonds and crystal lattices.