What's structures corresponds to these? 0 H2 CH,Cl 10 ppm 5.0 0 Hz 150 100 3.0...
V. Draw the structures of Compound 23A (6 pts), Compound 23B (6 pts) and clearly indicate your assignments of all proton resonances using the lower case letter associated with the signal (6 pts). Calculate the Unsaturation Index of each compound (2 pts) (20 points total) 1.24 3.0 1.26 2.5 e = 1.25 ppm doublet, 6H 2.0 a = 10.0 ppm 1.5 Compound 23a: C10H420 singlet, 1H 10.00 7.83 7.85 7.09 7.07 1.0 Unsat. Index = (2C+2-H-X+N)/2 = X=number of halogens...
V. Draw the structures of Compound 23A (6 pts), Compound 23B (6 pts) and clearly indicate your assignments of all proton resonances using the lower case letter associated with the signal (6 pts). Calculate the Unsaturation Index of each compound (2 pts) (20 points total) 1.24 3.0 1.26 2.5 e = 1.25 ppm doublet, 6H 2.0 a = 10.0 ppm 1.5 Compound 23a: C10H420 singlet, 1H 10.00 7.83 7.85 7.09 7.07 1.0 Unsat. Index = (2C+2-H-X+N)/2 = X=number of halogens...
What is the structure of this compound? MASS SPECTRUM 100 Relative Intensities m/z 103-100% m/z 197-190 m/z 198-less than 1% 80 60 40 20 197 0.0t l.1 0.0 40 80 120 160 200 m/z H NMR spectrum, CDCls, 600 MHz 3.75 3.703 3.60 34 3.3 Chemical Shft (ppm) 3.65 3.55 Chemical Shft (ppm) 70 4.65 4.60 Chemical Shift (ppm) 1.26 1.24 122 120 1.18 1.16 Chemical Shift (ppm) 4.8 4.6 4.4.2 4.0 3.8 3.6 34 3.2 3.0 2.826 24 22...
A variety of spectra for an organic compound with molecular formula C10H16O are presented below. The experimental accurate mass using (+) APCI source is 153.1280 u. The 1H, 13C, COSY, HSQC and HMBC NMR spectra are given in the following slides. Propose a structure for this unknown and answer or address the following questions or requirements: a. Using the most abundant isotopes of C, H and O, what are the errors in ppm and milli-Daltons for the experimental accurate mass?...
Analyze the proton and carbon NMR for 4-cyclohexane PROTON_02 4632-4-cyclohexane 7.5 7.0 6.5 6.0 5.5 5.0 4.5 a 4.0 fi (ppm) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 CARBON_01 4632-4-cyclohexane WAWANAN www 230 220 210 200 190 180 170160 150 140 130 120 110 f1 (ppm) 100 90 80 70 60 50 40 30 20 10 0 -10
H2 Ha a) Given that the 'H NMR spectrum was acquired at 300 MHz, convert the ppm values for the alkenyl region to Hz and provide the cis proton coupling constant to 1 decimal place. CEC Ha OH b) Please provide the chemical shift values for i) Both alkyne carbons i) The aromatic carbon bearing the substituent ii)H iv) H v) H vi) H H NMR spectrum as 25 1C NMR spectrum 9911 1C NMR spectrum 90 60 10 170...
18. Draw the structures of Compound 18a. and 18b. (18 pts), clearly indicate your assignments of all proton resonances (8 pts). Calculate the Unsaturation Index of each compound (4 pts) (30 points total) 30 Unsat. Index = (2C+2-H-X+NY2 = 200 25 e = 2.00 ppm, 4.90 f = 1.27 ppm, 20 720 Compound 18a: C,H,O, singlet, 2H triplet, 3H 127 15 d = 2.66 ppm, a = 7.21 ppm, b = 7.18 ppm, doublet, 2H doublet, 2H C = 4.90...
Draw the structure with the mass spectrum and NMR. 151) (Mass of molecular ion: 100e-1N-7213 80 60 2 40- 20- 0 100 150 125 75 25 50 m/z Molecular Weight: 151.1195 Elemental Analysis: C, 55.63; H, 3.33; N, 9.27; O, 31.76 170 160 150 140 130 120 110 100 80 70 30 20 10 10 .5 9.0 8.5 8.0 7.5 70 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 25 2.0 1.5 10 0.5 0.0 0.5 1.0 -15 2.0 2.5...
label the spectrum OTBS Meo Yome Me H NMR spectrum (CDC13, 400 MHz) 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 f1 (ppm) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -0.5 18C NMR spectrum (CDCI, 100 MHz) 210 200 190 180 170 160 150 140 130 120 110 100 fi (ppm) 90 80 70 60 50 40 30 20 10 -10
Which of the following structures corresponds to the mass spectrum shown below? 100 - Relative Intensity مسلسل السنه 0 mmanlifunnhhemmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm 25 50 75 100 125 150 m/z What chemical shift (in ppm, in a 'H NMR spectrum) might you expect for the H atom, shown in red, in the molecule below? 1.0, 2.2, t 2.3, 4 1.4.4 3.2, d Submit Answer Tries 0/1 What chemical shift (in ppm, in a 'H NMR spectrum) might you expect for the H atom,...