How to Calculate the Wavenumber in Raman Spectroscopy for Ethene?

In summary, Raman spectroscopy is a scientific technique that uses laser light to measure the vibrational and rotational modes of molecules in a sample. It works by measuring the inelastic scattering of light and has several advantages such as non-destructive nature, minimal sample preparation, and real-time results. It has various applications in fields like pharmaceuticals, forensics, and materials science. While it can be used for quantitative analysis, it is not as accurate or precise as other analytical techniques.
  • #1
baldywaldy
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Homework Statement


The Raman spectrum of ethene, obtained using 488.0nm radiation from a laser, shows an intense line at 540.0nm. Calculate the wavenumber for this vibration


I know that you get stokes, anti-stokes and rayleigh scattering. Not sure how to calculate the wavenumber though . I know its not as simple as taking the reciprical of the wavelength though


thanks
 
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  • #2
Try to Wiki Raman spectroscopy. Pretty simple IMO but not as simple as just asking for the answer, eh?
 

Related to How to Calculate the Wavenumber in Raman Spectroscopy for Ethene?

1. What is Raman spectroscopy?

Raman spectroscopy is a scientific technique used to study the vibrational and rotational modes of molecules. It involves shining a laser onto a sample and measuring the scattered light, which can provide information about the chemical composition and structure of the sample.

2. How does Raman spectroscopy work?

Raman spectroscopy works by measuring the inelastic scattering of light when it interacts with the chemical bonds in a sample. The energy of the scattered light is shifted due to the vibrations and rotations of the molecules, providing a unique spectral fingerprint for each molecule.

3. What are the advantages of using Raman spectroscopy?

Raman spectroscopy has several advantages, including its non-destructive nature, ability to analyze samples in a variety of states (solid, liquid, gas), and its sensitivity to both organic and inorganic compounds. It also requires minimal sample preparation and can provide real-time results.

4. What are some common applications of Raman spectroscopy?

Raman spectroscopy has a wide range of applications in various fields, including pharmaceuticals, forensics, environmental analysis, materials science, and art conservation. It can be used for identification and characterization of unknown compounds, monitoring chemical reactions, and studying molecular structures.

5. Can Raman spectroscopy help with quantitative analysis?

Yes, Raman spectroscopy can be used for quantitative analysis by measuring the intensity of the scattered light and comparing it to a calibration curve. However, it is generally not as accurate or precise as other analytical techniques like mass spectrometry or chromatography.

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