Effect of Solvents on UV/V Spectra of Benzophenone

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The discussion centers on the effects of solvents on the UV/V spectra of compounds, particularly benzophenone. It highlights that solvents can influence the spectra by potentially introducing additional peaks due to their own absorption characteristics at specific wavelengths. The conversation mentions solvent broadening, which increases the bandwidth of spectral peaks, and discusses the concepts of bathochromic and hypsochromic shifts, which refer to the movement of absorption peaks to longer or shorter wavelengths, respectively. The importance of consulting resources like "Instrumental Analysis" by Skoog for a deeper understanding of these phenomena is also noted.
~christina~
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Ah this is a question because I'm new to UV/V spec.
What would a solvent do to a spectra of a compound when it is analyzed?

Such as a polar/non nonpolar solvent on benzophenone?

solvents such as:
Nonpolar :Ethanol, Cyclohexane, n-Hexane
Polar: Methylene chloride

I looked online but couldn't find a simple description of things that would occur.

I do think that the solvents could produce additional peaks on the spectra due to it absorbing/reflecting at certain wavelengths but other than that I'm not sure.

Thanks a lot :smile:
 
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I remember something along the lines of solvent broadening - increasing the bandwidth of the peaks - , along with something with do with shifts , or perhaps reflection ... Instrumental Analysis by Skoog should help , I'm going read upon this topic and answer your question when I have time.
 
GCT said:
I remember something along the lines of solvent broadening - increasing the bandwidth of the peaks - , along with something with do with shifts , or perhaps reflection ... Instrumental Analysis by Skoog should help , I'm going read upon this topic and answer your question when I have time.

Ah okay then.
Thank you GCT :smile:
 
Search terms: "Bathochromic Shift" and Hypsochromic Shift"
 
Thank you both.
 
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