IR Spectrum(liquid film)400010080604020% of base peak300041106200¹H NMR Spectrum(400 MHz, CDCI, solution)10121/12340120 160m/e13C NMR Spectrum(100 0 MHz CDCI, solution) DEPT CH₂ CH₂ CHproton decoupled120801 L93.620008V (cm¹)160011603.4 ppm7expansions763800Mass SpectrumC3H6Br₂280solvent7801200M** 200/202/204200 240122 ppm246 54Problem 17No significant UVabsorption above 220 nm4012308 (ppm)TMS08 (ppm)113 2 1

Answered: Image /qna-images/answer/8a78147f-aa34-47ea-82f1-df2f64933273.jpg

IR Spectrum (quid film) 4000 100 80 60 40 20 % of base peak 3000 41 80 200 ¹H NMR Spectrum (400 MHz, CDCI, solution) 2000 121/123 40 120 160 m/e 13C NMR Spectrum (100 0 MHz CDCI, solution) DEPT CH₂ CH₂ CH proton decoupled 120 3.6 V (cm¹) 1600 1 160 3.4 ppm expansions mm 763 L 800 Mass Spectrum C3H6Br₂ 280 1200 M200/202/204 200 240 —T 2.4 22 ppm solvent + 1 L 80 Problem 17 No significant UV absorption above 220 nm 40 0 123 8 (ppm) TMS

IR Spectrum (quid film) 4000 100 80 60 40 20 % of base peak 3000 41 80 200 ¹H NMR Spectrum (400 MHz, CDCI, solution) 2000 121/123 40 120 160 m/e 13C NMR Spectrum (100 0 MHz CDCI, solution) DEPT CH₂ CH₂ CH proton decoupled 120 3.6 V (cm¹) 1600 1 160 3.4 ppm expansions mm 763 L 800 Mass Spectrum C3H6Br₂ 280 1200 M200/202/204 200 240 —T 2.4 22 ppm solvent + 1 L 80 Problem 17 No significant UV absorption above 220 nm 40 0 123 8 (ppm) TMS

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter20: Molecular Mass Spectrometry

Section: Chapter Questions

Problem 20.11QAP

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MS: m/z=148 (M,100%),149 (11%) IR (liquid film): 3077‐2835 (multitude of weak peaks) 1640(m),1611(m),1511(s),1301(m),1247(s),1176(s),1038(s),922(m),914(m) and 810(m)cm^-1 There are no absorptions in the 3100-‐4000cm^-1 region of the spectrum. (m=medium absorption, s=strong absorption). Choose (circle) the best structure for estragole (W) from the four possible structures (1-4)shown below. Explain briefly how you eliminated each of the incorrect structures for W.
Complete the following answer using the data provided here: Molecular formula: C4H8O2 Important IR data (cm-1): 3280 (broad); 2980-2730 (many); 1690; 1254 All 1H NMR data (ppm, splitting, integration): 11.0 ppm (s), 1; 2.57 ppm (m), 1; 1.07 ppm (d), 6 1. Sketch out a 1H NMR spectrum showing peak locations and peak splitting on a ppm scale for the data provided above. Include the data labels above in your spectrum, but do not show integration lines. 2. draw the most proper line bond structure for the data given above
For each set of spectral data, propose an acceptable structure that is consistent with the data 1.. MS: M+ m/z=92 (M:M+2=3:1), IR: 2960, 2870 cm^-1, 13C NMR: 67.29 (C), 34.46 (CH3) ppm 2.. MS:M+ m/z=70, IR: 3070, 2960, 2870, 1666 cm^-1, 13C NMR: 138.92 (t), 114.26 (d), 35.96 (t), 22.17 (t), 13.59 (q) ppm 3.. MS: M+ m/z= 72, IR: 2960, 2870 cm^-1, 13C NMR: 31.68 (t), 29.80 (d), 22.20 (q), 11.69 (q) ppm
plese don't handwritten solution... What MS resolving power is needed to fully resolve the C8H8NO2 and C7H6N2O2 ions (at the base peaks)?
For each set of spectral data, propose an acceptable structure that is consistent with that data 1.. MS: M+ m/z= 84, IR: 2960, 2870, 1734 cm^-1, 13C NMR: 220.16 (C), 38.30 (CH2), 23.24 (CH2) ppm 2. MS:M+ m/z= 138, (M:M+2=1:1), IR: ~3010(broad), 1715 cm^-1, 13C NMR: 173.61(s), 25.21(t) ppm 3. MS:M+ m/z=88, IR: 2960, 2870, 1736cm^-1, 13C NMR: 170.95 (C), 60.34 (CH2), 20.98 (CH3), 14.23 (CH3) ppm 4. MS: M+ m/z=73, IR: 3410, 2960, 2870, 1668 cm^-1, 13C NMR: 171.27 (C), 26.26 (CH3), 22.87 (CH3) ppm
Spectrophotometric of a Cobalt Chloride Solution Analysis 1. explain in detail the results of this experiment Table 1 Absorption Spectrum of Cobalt Chloride Using a Spectrophotometer Wavelength Absorbance 400 410 420 430 440 450 460 370 480 490 500 510 520 530 540 550 560 570 580 590 600 610 620 630 640 650 660 670 680 690 700 0.036 0.044 0.063 0.095 0.147 0.215 0.284 0.329 0.362 0.402 0.450 0.479 0.464 0.398 0.314 0.216 0.142 0.087 0.054 0.041 0.036 0.036 0.034 0.028 0.030 0.023 0.023 0.023 0.014 0.014 0.011 Test Tube Number Cobalt Chloride Concentration (mol/mL) Absorbance at 510 nm 1 0.000 0.000 2 0.009 0.042 3 0.018 0.92 4 0.027 0.139 5 6 0.036 0.045 0.190 0.236 7 (Unknown) 0.151 Results
Please help me analyze this 1H and 13C Acetylferrocene NMR data. I am not sure how to read the peaks and what information they give.
I have problems understanding the results of this experiment, could you help me by explaining the results? Spectrophotometric of a Cobalt Chloride Solution Analysis Table 1 Absorption Spectrum of Cobalt Chloride Using a Spectrophotometer Wavelength Absorbance 400 410 420 430 440 450 460 370 480 490 500 510 520 530 540 550 560 570 580 590 600 610 620 630 640 650 660 670 680 690 700 0.036 0.044 0.063 0.095 0.147 0.215 0.284 0.329 0.362 0.402 0.450 0.479 0.464 0.398 0.314 0.216 0.142 0.087 0.054 0.041 0.036 0.036 0.034 0.028 0.030 0.023 0.023 0.023 0.014 0.014 0.011 ]
interpret NMR spectra and report NMR data stating, in this order: nucleus (1H or 13C), solvent, machine frequency, peaks in order from high to low chemical shift including multiplicity, coupling constants and integration
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Spectrophotometric of a Cobalt Chloride Solution Analysis 1. explain the results of the experiment Table 1 Absorption Spectrum of Cobalt Chloride Using a Spectrophotometer Wavelength Absorbance 400 410 420 430 440 450 460 370 480 490 500 510 520 530 540 550 560 570 580 590 600 610 620 630 640 650 660 670 680 690 700 0.036 0.044 0.063 0.095 0.147 0.215 0.284 0.329 0.362 0.402 0.450 0.479 0.464 0.398 0.314 0.216 0.142 0.087 0.054 0.041 0.036 0.036 0.034 0.028 0.030 0.023 0.023 0.023 0.014 0.014 0.011 Test Tube Number Cobalt Chloride Concentration (mol/mL) Absorbance at 510 nm 1 0.000 0.000 2 0.009 0.042 3 0.018 0.92 4 0.027 0.139 5 6 0.036 0.045 0.190 0.236 7 (Unknown) 0.151
The NMR spectra for compound 1 were acquired in a 7.5 mg / 0.6 mL solution ofCDCl3 and are found in the accompanying file. The 1H are also listedbelow. Identify the name of compound 1 and Provide a full analysis of the NMR spectra for compound 1 with table showing peak name and assignment 1H NMR (400 MHz, CDCl3) δ 7.73 (d, J = 9.5 Hz, 1H), 7.56 (ddd, J = 8.5, 7.5, 1.6 Hz, 1H),7.51 (dd, J = 7.5, 1.6 Hz, 1H), 7.36 (d, J = 8.5 Hz, 1H), 7.30 (dd, J = 8.5, 7.5 Hz, 1H), 6.45(d, J = 9.5 Hz, 1H).