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- For each of the following reactions, check in the box which of these A or B components represents "highest occupied molecular orbital" (HOMO) and "lowest unoccupied molecular orbital" (LUMO). Once assigned, determine their type of orbitals.Compare the IR carbonyl stretching frequencies of the following compounds to that of acetone. Compare the table as follows: (a) State whether the carbonyl stretching frequency is higher, lower, or about the same as acetone (b) State the dominant effect responsible for the change in frequency relative to acetone (i.e., resonance, inductive, mass change, none) (c) Rank the compounds with numbers 1 through 4 in order of carbonyl stretching frequency from highest to lowest (1 = highest; 4 = lowest) H3C CH3 HN acetone v = 1715 cm-1 |(i) higher/lower/same v than acetone (ii) indicate the dominant effect (iii) rank the compounds from highest (1) to lowest (4) in stretching vWhat bond(s) do alkenes and aromatic rings have in common? Can their peaks be differentiated? If so, briefly explain how. If not, explain why not. spectroscopy
- match the given molecules with their corresponding IR spectraAttempt to rank the following compounds in order of decreasing carbonyl stretching frequency. In other * Please esplein whyPredict whether the compound is aromatic , anti-aromatic from a list of cyclic molecules given below and explain why? Also circle all the basic nitrogen’s?
- What is the order of infra red stretching frequencies of the given compounds?(in increasing order)Looking at the NMR, how can you determine the compound is cyclohexane carboxaldehyde? Distinguish all the ppm (be detailed)Proton Hc is the most and the most (, with a chemical shift of approximately. The carboxylic acid proton,, will be the most | and the furthest . The chemical shift of is approximately 11 ppm. Protons on benzene rings usually have a chemical shift of. Electron withdrawing groups cause because the electron density around the nucleus is resulting in a ( chemical shift. На H. H2N. HO H Н. H, deshielded shielded upfield downfield 2.5 ppm 1.0 ppm 7-9 ppm На Не НЬ shielding deshielding decreased increased smaller larger