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- The degree of unsaturation, or index of hydrogen deficiency, is the number of pi bonds plus rings in a molecule. Specify the degree of unsaturation (index of hydrogen deficiency) of the following formulas: (a) C9H12 (b) C,H40| (c) C,H,N2The degree of unsaturation, or index of hydrogen deficiency, is the number of pi bonds plus rings in a molecule. Specify the degree of unsaturation (index of hydrogen deficiency) of the following formulas: (a) C24H30 (b) C15H22 (c) C,H¡Cl,N7. Assign E or Z configuration to the following molecules: (A) (B) (C) (D) (E) I = Z; II = E I=E: II = Z I= E; II = E I=Z; II = Z I= E; II is neither E nor Z OH I II C1
- (1) (ii) (iii) (iv) (v) What is the relationship between the compounds [Cl-Ag-SCN]™ and [SCN-Ag-CIJ? Name the compounds whose molecular formulae are given in Question 1(a) (i). Which of the compounds, [Cl-Ag-SCN] and [SCN-Ag-CI], is the more stable? Explain your answer. Draw the boundary surfaces of all 3d orbitals and label these orbitals according to the conventional nomenclature. Clearly draw and label the Cartesian axes. Draw the crystal field splitting diagram for a linear compound, e.g. [Cl-Ag-SCN] or [SCN-Ag-CI], aligned along the z-axis. You only need to indicate the order of the individual d orbitals as a function of the energy. Explain your answer.Assign the configuration Z or E to each double bond, where appropriate, in the following molecules. (a) (b) (c) Br Br NO2estimate whether the compound will have a large, small, or zero dipole moment.(a) CH3¬CH“N¬CH3 (b) CH3¬CH2OH (c) CBr4
- 3. According to the Hammond Postulate, what does transition state 3 (TS3) most closely resemble? First choice: Second choice: AG (a) TS2 (b) P (c) 12 (d) 11 TS2 TS1 M 11 Reaction Coordinate 12 TS3The degree of unsaturation, or index of hydrogen deficiency, is the number of pi bonds plus rings in a molecule.Specify the degree of unsaturation (index of hydrogen deficiency) of the following formulas:(a) C10H8(b) C8H10O2(c) C8H9NO2Explain [3,3] Sigmatropic Rearrangements ?
- or each of the following molecules, construct the MOS from the 2p, atomic orbitals perpendicular to the plane of the carbon atoms. (a) Cyclobutadiene HC=CH НС—СН HC=CH НС —СH (b) Allyl radical H H H H C=C •C-C, H C-H H C-H H H Indicate which, if any, of these orbitals have identical ener- gies from symmetry considerations. Show the number of electrons occupying each w MO in the ground state, and indicate whether either or both of the molecules are para- magnetic. Assume that the C atoms in the allyl radical are all sp? hybridized. Activate io to S8. Which of the following pairs of compounds is likely to absorb radiation at the longer wavelength and with greater intensity? (a) CH3CH2CO₂H or CH2=CHCO₂H (b) CH3CH=CHCH=CHCH3 or CH3C = C—C = CCH3 OCH3 (c) or CH3Which Newman projection corresponds to point A on the graph of potential energy vs. rotation about the C2-C3 bond?