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18 Nov 2019
Please help me answer this question. The second picture is for the Newman projection, it's not a separate question....... please answer this completely
For this problem, use the templates on the other side of the page. Using Newman projections, draw all of the staggered and eclipsed conformers of 2,3-dimethylpentane looking down the C2- C3 bond. Place each conformer at the correct relative energy level on a potential energy diagram, starting with the highest energy eclipsed conformation. What is the barrier to rotation around the C2-C3 bond of 2,3-dimethylpentane? (Hint Use the following values for various eclipsing interactions: H-H, 1.0 kcal/mol; CH3-CH3, 4.0 kcal/mol, CH3-H, 1.3 kcaVmol), as well as the energy of a "gauche butane" interaction, 0.8 kcaVmol.) To assess strain energies, assume that an ethyl group is similar to a methyl group, so that interactions with ethyl and other groups will have the same energy values as methyl and other groups, e.g. ethyl-hydrogen would be the same as methyl hydrogen, etc. Barrier to rotation kcal/mol
Please help me answer this question. The second picture is for the Newman projection, it's not a separate question....... please answer this completely
For this problem, use the templates on the other side of the page. Using Newman projections, draw all of the staggered and eclipsed conformers of 2,3-dimethylpentane looking down the C2- C3 bond. Place each conformer at the correct relative energy level on a potential energy diagram, starting with the highest energy eclipsed conformation. What is the barrier to rotation around the C2-C3 bond of 2,3-dimethylpentane? (Hint Use the following values for various eclipsing interactions: H-H, 1.0 kcal/mol; CH3-CH3, 4.0 kcal/mol, CH3-H, 1.3 kcaVmol), as well as the energy of a "gauche butane" interaction, 0.8 kcaVmol.) To assess strain energies, assume that an ethyl group is similar to a methyl group, so that interactions with ethyl and other groups will have the same energy values as methyl and other groups, e.g. ethyl-hydrogen would be the same as methyl hydrogen, etc. Barrier to rotation kcal/mol
Tod ThielLv2
5 Aug 2019