Task 2. Determine the absorption bands of caffeine(Which of the peaks gives auxochrome and which chromophore?/ What parts of the molecule are the bands associated with). Specify chromophores and auxochromes in the molecule((mark in the picture with different colors) 35000 30000 25000 20000 15000 10000 5000 200 A/ nm 250 300 Fig. 1.2-16 UV spectrum in ethanol Fig. 1.2-16 UV spectrum in ethanol CH3 H3C N' CH3 e/(cm2 mmol")
Task 2. Determine the absorption bands of caffeine(Which of the peaks gives auxochrome and which chromophore?/ What parts of the molecule are the bands associated with). Specify chromophores and auxochromes in the molecule((mark in the picture with different colors) 35000 30000 25000 20000 15000 10000 5000 200 A/ nm 250 300 Fig. 1.2-16 UV spectrum in ethanol Fig. 1.2-16 UV spectrum in ethanol CH3 H3C N' CH3 e/(cm2 mmol")
Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
ChapterL2: Mass Spectrometry
Section: Chapter Questions
Problem 24CTQ
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if the peak at about 212nm is redshifted at higher caffeine concentrations...is that mean an increase in conjugation due to the presence of more auxochromes? Or what is the correct explanation for that
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