FTIR Spectroscopy

What is infrared light?

• a visible light

• an instrument to analyze compound

• a part of the electromagnetic spectrum

• a source of X-ray

Choose the correct facts about infrared

• IR wavelength is longer than X-ray

• IR wavelength is shorter than ultraviolet

• IR is used in microwave oven

• IR is used in TV remote

FTIR stands for

This molecular vibration is knows as__________________

• wagging

• symmetrical stretching

• bending

• assymetrical stretching

This molecular vibration is known as ___________

• Bending

• Wagging

• Rocking

• Twisting

when IR is applied, the molecule will ______________ the energy.

Choose the advantages of FTIR

• fast data collection

• quality spectrum

• high accuracy

• high precision

Solid sample can be prepared for IR spectroscopy analysis by using:

• KBr pellet

• ATR

• Nujol mull

• dissolve in inert solvent

What is the wavenumber range for O-H stretching?

• 2100-2260 cm-1

• 3200-3400 cm-1

• 1650-1800 cm-1

• 2850-3100 cm-1

Identify the funtional group for the peak with arrow.

• C=C

• O-H

• C=O

• CH2