173.2 (OH) 43.6 (2H) 25.8 (1H) 22.4 (2C, 3H@) 22.2 (2H) 10.5 (3H) 65.8 (2H) 200 180 160 140 120 100 80 60 40 20 ppm 9 2.19 (2H, d, J = 6.6 Hz) 2.11 (1H, 9 lines, J = 6.6 Hz) 1.65 (2H, sextet, J = 6.7 Hz) 0.95 (3H, d, J = 6.6 Hz) 0.94 (6H, d, J = 6.7 Hz) 4.03 (2H, t, J = 6.7 Hz) 00 17 6 S ppm 17 4 3 2 1 Relative Intensity 100 80-> 60 40 40 20 plenty o 25 50 50 2964 85 weak parent peak at 144 57,60,61 103 M 75 m/z 100 1737 125 1000 180

173.2 (OH) 43.6 (2H) 25.8 (1H) 22.4 (2C, 3H@) 22.2 (2H) 10.5 (3H) 65.8 (2H) 200 180 160 140 120 100 80 60 40 20 ppm 9 2.19 (2H, d, J = 6.6 Hz) 2.11 (1H, 9 lines, J = 6.6 Hz) 1.65 (2H, sextet, J = 6.7 Hz) 0.95 (3H, d, J = 6.6 Hz) 0.94 (6H, d, J = 6.7 Hz) 4.03 (2H, t, J = 6.7 Hz) 00 17 6 S ppm 17 4 3 2 1 Relative Intensity 100 80-> 60 40 40 20 plenty o 25 50 50 2964 85 weak parent peak at 144 57,60,61 103 M 75 m/z 100 1737 125 1000 180

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter20: Dienes, Conjugated Systems, And Pericyclic Reactions

Section20.3: Uv-visible Spectroscopy

Problem 20.5P

See similar textbooks

Similar questions

Transmittance (%) 100% 75% 50% 25% 0% 4000 3500 3000 OH 2500 2000 Spectrum 3B 1750 حسيمة 1500 Wavenumber (cm-¹) 1250 .OH 1000 OH 750 500
1
Draw the structure of the important peaks in the spectrum of C9H8O m/z - relative intensity 132 - 100.0 131 - 95 115 - 30. 114 - 20 104 - 30 103 - 42 79 - 33 78 - 32 77 - 57 53 - 50 51 - 26
Potassium dichromate and potassium permanganate have overlapping absorptionspectra in 1M H2SO4 . K2Cr2O7 has an absorption maxima at 440 nm, and KMnO 4 has a band at 545nm (the maximum is actually at 525 nm, but the longer wavelength is generally used whereinterference from K2C2O7 is less). A mixture is analyzed by measuring the absorbance at these twowavelengths with the following results: A 440 =0.405, A 545 =0.712 in a 1-cm cell. The absorbances ofpure solutions of K2Cr2O7 (1x10 -3 M) and KMnO 4 (2.00x10 -4 M) in 1 M H 2 SO 4 , using the same cell gavethe following results: A Cr,440 = 0.374, A Cr,545 = 0.009, A Mn,440 =0.019, A Mn,545 = 0.475. Calculate theconcentrations of dichromate and permanganate in the sample solution.
0.8 0.6 0.4 0.2 0.0 3000 2000 1000 Wavenumber (cm-1) ОН NH2 `NH2 A В C Transmitance
Label and identify peaks on both spectra
Intensity (a.u.) 4000 3352 cm¹ 3500 3000 UNKNOWN B 1710 cm¹ 2000 1668 cm¹ 2500 Wavenumber (cm¹¹) 1500 1101 cm 1000 500
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.
Give clear handwritten answer........
Interpret Peaks of this IR
Chemistry 58 un 5 5 498 998 ¥ a ल OOGL 0OSZ 3000 3500 Navenumbers (cm-1) Please annotate this IR and label ALL peaks
2 infrared spectra are on the back of this page. a. Draw an arrow to the O-H peak and label it. b. Draw an arrow to the C=O peak and label it.