On January 1, 2021, Wetick Optometrists leased diagnostic equipment from Southern Corp., which had purchased the...
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: d. If there are still any questionable assignments, propose additional NMR experiments which would solve those questions and briefly explain specifically what correlations you...
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 this NMR & IR S23 CDC13 QE-300 240 UN (43 MIL.) 10.02s, 1H), 7.716.J-2 Hz. ) 2.0 11.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 4.0 3.5 3.0 2.5 20 15 100.5 0.0 -0.5 -1.0 -1.5 -2. 5.5 5.0 4.5 fl (ppm)
Fill out the tables below of the starting material and pure product by using the given NMR spectrums. Identify if the pure isomer of methyl nitrobenzoate as ortho, meta, or para. Complete the table below using your proton NMR spectrum of your starting material. Be sure to include all peaks. Note: The table is expandable. Use the structure below for the letter assignments in your table. Splitting Integration Assignment Peak (ppm) Other Notes -7.95 -7.92 0627 -787 785 7.30 751...
3. Based on the integration of the peaks, what is the relative number of protons which make up each signal? 4. Identify any common splitting patterns. (ie. Isopropyl, ethyl, etc) UN (43 MIL.) 10.02s, 1H), 7.716.J-2 Hz. ) 2.0 11.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 4.0 3.5 3.0 2.5 20 15 100.5 0.0 -0.5 -1.0 -1.5 -2. 5.5 5.0 4.5 fl (ppm)
7. What kind of carbons correspond to these chemical shifts? 8. Based on this analysis, the unknown might contain the following substructure: UN (43 MIL.) 10.02s, 1H), 7.716.J-2 Hz. ) 2.0 11.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 4.0 3.5 3.0 2.5 20 15 100.5 0.0 -0.5 -1.0 -1.5 -2. 5.5 5.0 4.5 fl (ppm)
5. Based on this analysis, the compound might be or contain the following substructure: 6. How many different types of carbons appear to be present? What are the chemical shifts for these carbons? UN (43 MIL.) 10.02s, 1H), 7.716.J-2 Hz. ) 2.0 11.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 4.0 3.5 3.0 2.5 20 15 100.5 0.0 -0.5 -1.0 -1.5 -2. 5.5 5.0 4.5 fl (ppm)
1. How many different types of protons appear to be present? What are the chemical shifts for these protons? What does this indicate (if anything) about the electronic environment of the protons? 2. What are the multiplicities for each peak? UN (43 MIL.) 10.02s, 1H), 7.716.J-2 Hz. ) 2.0 11.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 4.0 3.5 3.0 2.5 20 15 100.5 0.0 -0.5 -1.0 -1.5 -2. 5.5 5.0 4.5 fl (ppm)
1. [12 pts) Estimate the area of the region between the x-axis and graph of the function /(x) = x2 - 4x + 5 from I=Ito = 4: (a) By using the lower sums , with 6 subintervals of equal length. Include a sketch of the corresponding rectangles used in the estimate, 6.01 0.5 0.0 L 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 (b) By using the upper sums S, with 6 subintervals of...
Q.1 Chloroform (1) and n-heptane (2) forms a 2 phase systems for which the following plot is givern: 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 6.0 5.5 5.0 4.5 4.0 3.5 2.5- 2.0- 1.5 1.0 0.5 0.0 0.0 0.2 0.4 0.6 0.8 1.0 (a) Use Van Laar equation to calculate y?, y2 and P for x1-02. Given P1 at-44.51 kPa; P2 at-65.54kPa (b) Do the activity coefficients show positive or negative deviation from activity...