Determine IR functional groups for 2,3-Diphenylquinoxaline from the following theoretical spectra:

1. Explain your answers and label the bands of all functional groups

2. Taking into account that the product (2,3-Diphenylquinoxaline) is obtained by means of the following synthesis, what possible interferences or impurities can be identified in an IR spectrum?

Transcribed Image Text:

LOD TRANSHETTANCEISI D 4000 3000 2000 m HAVENUMBERI 1500 1000 5 DO NH₂ NH₂ + p-TSA Etanol N + H₂O LOD TRANSHETTANCEISI D 4000 3000 2000 m HAVENUMBERI 1500 1000 5 DO NH₂ NH₂ + p-TSA Etanol N + H₂O

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