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Lagos State Polytechnic, Ikorodu, Lagos State, 2019/2020 HND FORM AND PART-TIME - Ikorodu
Tuesday, 2 July 2019
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City:
Ikorodu, Lagos
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Lagos State Polytechnic, Ikorodu, Lagos State, 2019/2020 HND FORM AND PART-TIME FORM IS OUT CALL 08032802176 ND POST-UTME FORM is also on sale Call the Admin Office for Registration...
Theory
Sample of an IR spec. reading; this one is from bromomethane (CH3Br), showing peaks around 3000, 1300, and 1000 cm−1 (on the horizontal axis).
Infrared spectroscopy exploits the fact that molecules absorb frequencies that are characteristic of their structure. These absorptions occur at resonant frequencies, i.e. the frequency of the absorbed radiation matches the vibrational frequency. The energies are affected by the shape of the molecular potential energy surfaces, the masses of the atoms, and the associated vibronic coupling.
Theory
Sample of an IR spec. reading; this one is from bromomethane (CH3Br), showing peaks around 3000, 1300, and 1000 cm−1 (on the horizontal axis).
Infrared spectroscopy exploits the fact that molecules absorb frequencies that are characteristic of their structure. These absorptions occur at resonant frequencies, i.e. the frequency of the absorbed radiation matches the vibrational frequency. The energies are affected by the shape of the molecular potential energy surfaces, the masses of the atoms, and the associated vibronic coupling.
