Q2/A) Identify the characteristic signals the you would expect in the diagnostic region of an IR spectrum of the following compounds. Explain? 1-methyl salicylate, methyl benzoate 2-aniline. benzamide
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- Complete the table with the identified IR peaks and the interpretation of them. And based on the IR spectrum, what is the most likely identity of the analgesic sample? (Aspirin, Acetaminophen, Ibuprofen) Frequency of Important Peaks (cm-1) Functional Group InterpretationI. Look at the MS/MS for paracetamol (a drug), explain the peaks seen at 134 and 110, and draw the structure for the 110 peak. Paracetamòl N-(4-hydroxyphenyliacetamide ESI+, MS/MSs Kky pan_03_c80720211368 1-38 RT: 0.00024 AV 35 N: 107ES T TMSES F ms 12.00g24 00 0 00-10.0g 100g 110.0 CH но 70 (M.H]* 162.0 16 1340 130 100Q3/A) How many signals 'H NMR be expected in the following molecules ? ( 1) 5-methyl-3-hexanone 2) acetone 3) 4-methylacetophenone 4)1-propanol 5) cinammic acid 6 (14 Mould)
- Given the CNMR and IR spectrum determine which of the compound listed is the unknown compound from which the data was taken. And provide an explanation as to why it fits for the CNMR and IR spectrum. ethyl methanoate, acetone, diethylamine sec-butylamine isobutyraldehyde methanol hexane isobutylamine butylamine ethyl acetate ethanol methyl propionate 2-butanone isopropanol tert-butyl alcohol tert-butyl formate methyl acrylate isopropyl acetate methyl isobutyrate 3-methylbutanal isopropyl methyl ketone 1-propanol allyl alcohol heptane sec-butanol (2-butanol) methanoic acid pentanal dipropylamine toluene 3-pentanol butyl alcohol Solubility Results: Water: Soluble Chloroform: Immiscible 5% NaOH: Immiscible 5% HCl: Immiscible 5% NaHCO3: Immiscible DMSO: MiscibleQ2/A) Identify the characteristic signals the you would expect in the diagnostic region of an IR spectrum of the following compounds. Explain? 1-methyl salicylate, methyl benzoate 2- aniline. benzamide B) Rank each of the bonds identified in order of increasing wave number, explain? NH₂ 第三个个 HAssign the peaks in the spectrum to the functional groups in n-butyl acetate. Microns (µm) 2.5 3.0 3.5 4.0 5.0 6.0 8 10 15 20 100 a 2787 cm-1 1083 cm-1 2965 cm- 1742 cm 1246 cm-1 4000 3500 3000 2500 2000 1500 1000 500 Wavenumber (cm1) C=O peak =| С-Н рeak C-O peak Submit Transmittance (%)
- 5. Tyrosine is an important amino acid in Biochemistry. Assign the peaks in the 'H-NMR to the hydrogens in the structure of tyrosine by placing a, b, c, and d in the appropriate corresponding boxes. The hydrogen atoms attached to O and N atoms do not need to be labeled on this spectrum. с 11 10 16 00 a H. H- H H -*|| NH₂ Tyrosine d -H ppmhow many cross peaks would we see in HSQC spectrum of cyclohexanone ?Label base peak and molecular ion peak C4H10O
- Draw the structure of the compound whose data is shown below, then select all functional groups in the correct structure. Compound 8, C;H;NO2 90 80- 70- 60 50 40 30 20 10 어 4000 600 3500 3000 2500 2000 1800 1600 1400 1200 1000 800 2:H 3 H: 2 H 10 ***The 3.4 ppm signal has only 1 peak.Most common amines (RNH2) exhibit pKa values between 35 and 45. R represents the rest of the compound (generally carbon and hydrogen atoms). However, when R is a cyano group, the pKa is found to be drastically lower: H H Incorrect. 人 R N H PK = 35-45 N N H PK = = 17 (a) Explain why the presence of the cyano group so drastically impacts the pKa. ○ When R is a cyano group, the acidic proton is on an sp-hybridized atom. ○ When R is a cyano group, the conjugate base is destabilized by resonance. ○ When R is a cyano group, the conjugate base is destabilized by inductive effects. ● When R is a cyano group, the conjugate base is stabilized by resonance.don't use handwriting 1. MORONS 20 The IR spectrum above indicates the presence of which of the following bond types or functional groups in the molecule? Select two. 100 90 70 40 4000 3000 Wavenumber (em') 2000 1000 The IR spectrum above indicates the presence of which of the following bond types or functional groups in the molecule? Select two. select two for each picture alcohol alkyne aldehyde or ketone carbonyl primary amine secondary amine carboxylić acid nitrile sp2 C-H