APFIVE Spectroscopic Evidence of Solute-Solvent Interactions
A researcher is using spectroscopy to study the dissolution of a compound in different solvents. Which of the following observations would provide evidence that the compound’s electronic structure is altered by solvent-solute interactions?
A
Solvatochromic shift in UV-visible absorption maxima
B
Constant peak positions in IR spectrum regardless of solvent
C
Identical fluorescence lifetimes in all solvents
D
Unchanged rotational constants in different solvents
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