please help if you can! Thank you! Instructions: This problem set is due to your lecture...
provide structures for the spectral data provided
Pages 1-5: provide the 5 structures for the spectral data provided. For full credit, you must be sure to assign/label all the NMR peaks and assign the major IR bands including those readily identifiable in the fingerprint region (use the IR spectral tables handed out in class). If you do not label anything on the spectra, you will lose most of the points for this problem set. Hint for the problems listed without...
DIRECTIONS: You must complete the entire assignment. 1. Given the 'H NMR spectrum below and a molecular formula of CH, 0, provide a structure. Note you must assign all of the signals in the spectrum below to receive full credit. IR: 1600-1650 cm (multiple peaks) (5 pts.) 3H, 3H,t 2H, d 2H, d 2H,9 PPM 2. Given the 'H NMR spectrum below and a molecular formula of C.H.O. provide a structure. Note you must assign all of the signals in...
NMR Help please!
Based on the molecular formula and the UN/DBE you calculated, check all the functional group that could be present in compound B? Examine the IR spectrum provided for Compound B. The peaks below 1500 cannot be used to make any structural assignments because they are i fingerprint region. There are the two important peaks in this IR spectrum, What is each peak most likely due to? Earlier, using the molecular formula and the UN/BE, you came up...
Need help with spectroscopy
Please label all peaks, in the IR (except fingerprint region)
and NMR spectra
Draw the structure/ compound that would produce these
spectra
1. A compound with molecular formulacsH7NO) displays the following IR, and 13C NMR spectra. Propose a structure for this compound. Assign all the peaks you can SDBS: National Institute of Advanced Industrial Science and Technology 25 2. lo 112 200 18O 160 140 120 100 80 60 40 20 o CDS-00-254
Uknown IR:
Uknown NMR:
For each problem, you must: 1) Calculate the degree of unsaturation. 2) Assign the principal IR absorption bands above 1500 cm 3) Draw the structure of the compound Label the protons on your structure with letters and assign them to peaks on the NMR spectrum (see the example below). OH 1H 3H 2H 2H 0.5 4.0 3.0 1.0 PPM
Please help me figure out this structure. If you can, could you
include the justifications for the structure, with how each spectra
supports it. Will leave many likes.
1. Use the 'H NMR, "C NMR, mass spectrometry and IR data of a compound to determine its structure. IR Spectrum Mass Spectrometry Data relative m und TH NMR Data 13C NMR Data There are two unresolved lines between 130 and 131 ppm. 0 TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT 166 140 120 1000 100 80 0...
For problems 7-12 answer the questions on the Mass Spectroscopy
problem set worksheet..
Problem | Bond stretch- Molecular | Halogen/nitrogen IR frequency Ion Peak present? Explain Structure of Compound Structure of MS fragments at... m/= = 91 M = 91 3400cm m/z= 76/78 m/z = 58 m/s = 86 m/z = 58 1740 cm m/:=152/154 m/z= 107/109 m/t = 91 Compound 9 is a high-beiling liquid (boiling point 2010C) that reacts with alkoxide to yield an ether. The Man, IR,...
Spectroscopy Problems For each problem, you must: 1) Calculate the degree of unsaturation. 2) Assign the principal IR absorption bands above 1500 cm-1 3) Draw the structure of the compound 4) Label the protons on your structure with letters and assign them to peaks on the NMR spectrum (see the example below). зн 6н СНsBro: Ін+2H PPM 20 180 160 140 120 100 PPM
6. Given the spectral data below, provide a structure. Note you must assign all of the signals in the spectrum below to receive full credit. Also assign any key signals in the IR and C NMR spectra that assisted you in deriving your answer. MS: M+ = 164 (no significant M+2 signal) (6 pts.) 3HS 2H. d 2Hd 2Hg 8 7 6 5 4 3 2 1 0 PPM 180 160 140 120 100 PPM 80 60 40 20 0...
6. Given the spectral data below, provide a structure. Note you must assign all of the signals in the spectrum below to receive full credit. Also assign any key signals in the IR and C NMR spectra that assisted you in deriving your answer. MS: M+ 164 (no significant M+2 signal) (6 pts.) 3H, s зн, 2H, d 2H, d 2H, q 8 6 5 PPM 140 120 100 180 160 80 PPM 60 40 0.8 0.6 0.4 3000 2000...