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Which molecule matches this mass spectrum
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- 13 C,H120 MICRONS 9 10 13 14 15 16 100 70 60 20 1000 800 600 400 1400 WAVENUMBERSS (CM) 4000 3600 3200 2800 2400 2000 1800 1600 1200 10 % TRANSMITTANCETransmittance (%) 100% 75% 50% 25% 0% 4000 3500 3000 OH 2500 2000 Spectrum 3B 1750 حسيمة 1500 Wavenumber (cm-¹) 1250 .OH 1000 OH 750 500Spectrum 28 100% 75%- 50%- 25% 0% 3500 2500 1750 1250 750 4000 3000 2000 1500 1000 50 Wavenumber (cm) NH2 Transmittance (%)
- Attach the spectra for A and B compounds here and identify the functional groups by completing the table for A and B respectively. S of them! Group Group Frequency Intensity (cm-¹) A Frequency Intensity (cm-¹) B 1. Acohol 2. Aromatic ring 3. c = c stretching vibration 4 CH bend 5. Amine.QUESTION 5 The IR, 'H NMR and 1°C NMR spectra of compound P are shown below. The molecular formula for compound P is CsH;NO2. Identify three (3) important absorption peaks on the IR spectrum and indicate the bond and wavenumber associated with each peak. Elucidate the structure of compound P and assign each peak in the 'H and 13C NMR spectra. (Hint: The compound consists of more than one functional group). а. b.AE = - 2 IS XIOM क np = 2, 7=6sa ->5116*3, En
- Transmittance (%) Transmittance (%) 100 50 4000 100 4000 3000 2000 1500 Wavenumber(cm¹) 1500 Wavenumber(cm¹) 1000 1000 500Each of the molecules shown below generates three different HNMR signals. Using the chemical shift differences, the relative peak intensities, and the splitting pattern of these signals, match each molecule to one of the HNMR spectra given below. HO, (a) (b) (c) Spectrum I 3 2 PPM▼ ▼ Part A In the rotational spectrum of H³5Cl (I= 2.65 x 10-47 kg m²), the transition corresponding to the J = 4 to J = 5 transition is the most intense. At what temperature was the spectrum obtained? Express the temperature in kelvins to three significant figures. ΠΫΠΙ ΑΣΦ T = Submit Part B J= Request Answer At 1000. K, which rotational transition of H³5 Cl would you expect to demonstrate the greatest intensity? Express your answer as an integer. V—| ΑΣΦ Submit Request Answer K ?
- • O-H in alcohols and phenols, N-H 3200-3600 • O-H in acids 2400-3600 • C-H vinyl or aromatic 3000-3100 • C-H alkyl 2800-3000 • C=C and C=N 2100-2260 • C=O 1670-1750 • Alkene C=C 1620-1680 • Aromatic ring C=C 1600, 1500, 1450 (2 or 3 bands) Which compound in this list corresponds with the IR spectrum shown? OH HO. ČH3 CH3 ASPECTRA FOR HOMEWORK 11, CHE 230 002 This page is not to be submitted to Gradescope. Use these spectra as you answer questions on the Homework 11 document. Spectra for Problem 1 100 %T 80 60 40 20 Relative Intensity 4000 100- 80 8 60- 40- 20- 0 20 2H 2H 3000 m/z 50.0 75.0 76.0 155.0 157.0 183.0 185.0 212.0 214.0 100.0 97.5 11.8 11.7 1686 cm 40 60 80 2000 rel, intensity 11.9 16.9 17.6 28.8 27.8 Wavenumber[cm-1] 100 120 m/z 1500 7.90 7.85 7.80 7.75 7.70 7.65 7.60 7.55 1588 cm² 20 20 ₂ مسلسل..............للمسلسل ppm 140 160 180 200 220 2H 1000 3.12 3.00 2.95 2.90 3H 500 400 A. Propose a molecular formula for this compound B. Propuse. a structure selected 1.25 1.20 1.15 201Q3/ Put the following information in an appropriate mathematical form: 1- Population of a rotational-oscillational energy level for a specific electronic state. 2- The peak value of the Lorentzian curve. 3- The mean thermal velocity for the atoms in the gas state. 4 The ratio between the probabilities of the electric and magnetic transition. 5- The relation between the energy density and the distribution of spectral energy density.