For 10 points, name this form of spectroscopy in which the vibrational modes of molecules are probed using light with a wavelength just larger than that of visible light.
In this technique, neodymium-doped yttrium aluminum garnet lasers can be used to produce picosecond "pump" and "probe" pulses. Metal carbonyl complexes undergo a peak shift in this technique due to pi backbonding. The selection rule for this technique requires that the molecule to be analyzed undergo a change in dipole moment, making this technique complementary to (*) Raman spectroscopy. The molecular motions involved in this technique can be modeled as a simple harmonic oscillator. Hydroxyl groups have a characteristic broad peak in this technique around 3300 to 3600 inverse centimeters. For 10 points, name this form of spectroscopy in which the vibrational modes of molecules are probed using light with a wavelength just larger than that of visible light.
In this technique, neodymium-doped yttrium aluminum garnet lasers can be used to produce picosecond "pump" and "probe" pulses.
infrared spectroscopy or IR