Problem # 4 Determine the structure of the compound with the spectra provided and molecular formula C9H1003. 3500 180 160 1H (exchanges) ये 3000 40 ठे 2H triplet 120 1H triplet 2-2545 -2637 941 2000 1500 2500 100 80 2H doublet ठे 1718 2H triplet 1433 2H triplet रे 1000 13 ठे
Analyzing Infrared Spectra
The electromagnetic radiation or frequency is classified into radio-waves, micro-waves, infrared, visible, ultraviolet, X-rays and gamma rays. The infrared spectra emission refers to the portion between the visible and the microwave areas of electromagnetic spectrum. This spectral area is usually divided into three parts, near infrared (14,290 – 4000 cm-1), mid infrared (4000 – 400 cm-1), and far infrared (700 – 200 cm-1), respectively. The number set is the number of the wave (cm-1).
IR Spectrum Of Cyclohexanone
It is the analysis of the structure of cyclohexaone using IR data interpretation.
IR Spectrum Of Anisole
Interpretation of anisole using IR spectrum obtained from IR analysis.
IR Spectroscopy
Infrared (IR) or vibrational spectroscopy is a method used for analyzing the particle's vibratory transformations. This is one of the very popular spectroscopic approaches employed by inorganic as well as organic laboratories because it is helpful in evaluating and distinguishing the frameworks of the molecules. The infra-red spectroscopy process or procedure is carried out using a tool called an infrared spectrometer to obtain an infrared spectral (or spectrophotometer).
Data from the given spectra:
Molecular formula: C9H10O3
IR Spectra:
Broad band from 2500-3050 cm-1
Strong absorption at 1718 cm-1
Finger print region absorption at 1433cm-1 and 1235 cm-1
13C NMR Spectra:
7 13C signals around ~ 176ppm, 158ppm, 130ppm, 120ppm, 115ppm, 64ppm and 35ppm
1H NMR Spectra:
1 H exchanges around 12ppm
2 H triplet ~7.3ppm
1 H triplet ~6.95ppm
2 H doublet ~6.90ppm
2 H triplet ~4.2ppm
2 H triplet ~2.7ppm
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