(c) Is a gauche interaction an example of steric strain or torsional strain?
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(c) Is a gauche interaction an example of steric strain or
torsional strain?
For each of...
pt iso 5. (a) For each of the molecules below, draw a Newman projection of the...
pt iso 5. (a) For each of the molecules below, draw a Newman projection of the conformation shown. Label any gauche interactions (i) (ii) OH B (b) Draw the Newman projections of the most and least stable conformationns of 3- methylpentane, viewed along the C-C, bond. Label any gauche interactions. example of steric strain or torsional strain? (c) Is a gauche interaction an-
pt iso 5. (a) For each of the molecules below, draw a Newman projection of the conformation...
6. Build the cyclobutane ring and study the angle strain and torsional strain. Draw the structures to explain thes...
6. Build the cyclobutane ring and study the angle strain and torsional strain. Draw the structures to explain these factors. 7. The conformation of cyclobutane is slightly folded. Folding gives partial relief from the eclipsing of bonds, as shown in the Newman projection. Compare this actual structure with the hypothetical planar structure. Draw the relevant structures. 8. trans-1,2-Dimethylcyclobutane is more stable than cis-1,2-dimethylcyclobutane, but cis-1,3- dimethylcyclobutane is more stable than trans-1,3-dimethylcyclobutane. Use the molecular models to find the reasons for...
1. Draw the Neman Projection of the following Promane descriptions Newman projection for most stable Newman...
1. Draw the Neman Projection of the following Promane descriptions Newman projection for most stable Newman projection for least stable conformation conformation 2. Draw the Newman projections for butane looking down the C2-C3 bond through a full 360 degree rotation. Start with the anti-staggered Newman projection then draw and label each Newman projection (staggered, eclipsed, gauche, anti-staggered, fully-eclipsed) for every 60 degrees of rotation Newman projection for most stable Newman projection for second-most stable conformation Conformation Newman projection for least...
OCH3 3. Indicate the electrophilic or nucleophilic centers for the following compounds: a) b) d) 4. Answer the foll...
OCH3 3. Indicate the electrophilic or nucleophilic centers for the following compounds: a) b) d) 4. Answer the following questions regarding 2,3-dimethylbutane: a) draw any staggered Newman projection of this compound looking down the C2-C3 bond. b) draw the highest energy conformation (as a Newman projection). Label each example of steric and/or torsional strain. c) draw the lowest energy conformation. Identify any sources of steric or torsional strain if present. m md iminetahm 5 Draw tra possiblechair conformatex For Jbrom-s-7ethiTmethychayo...
How can I tell if there is Bond Angle strain, Steric Strain, or Torsional strain just...
How can I tell if there is Bond Angle
strain, Steric Strain, or Torsional strain just by looking at the
conformations?
(2 points) 7. List all of the types of strain in the following (2 points) 8. List all of the types of strain in the following conformation. Do not rotate any bonds. Use BAS, TS and/or SS. conformation. Do not rotate any bonds. Use BAS, TS and/or SS. If If no strain is present, write "NO Strain" no strain...
6. Conformational Analysis: Newman Projections (25 points) Consider the rotation around the C3-C4 bond of (3R...
6. Conformational Analysis: Newman Projections (25 points) Consider the rotation around the C3-C4 bond of (3R 4R)-3,4-dibromohexane. C3-C4 bond. B Draw all three eclipsed Newman projections. In no particular order. Calculate the total strain associated with each conformation using the table below, enter on the provided line, and identify the least stable conformation (Circle it) Briefly explain your assignment of the least stable conformation - including which specific types of steric strain are involved. Short phrases are great complete sentences...
3. (a) A bond-line (dash/wedge) structure for butane is shown below. Using the Newman projection templates...
3. (a) A bond-line (dash/wedge) structure for butane is shown below. Using the Newman projection templates provided, draw the overall lowest energy (most stable) and overall highest energy (least stable) conformation possible in Newman projection form sighting down the bond indicated. Provide a brie explanation to justify the conformer shown for cach case. (2pts each correct Newman, 2pts for valid explanation) sight down CG- bond Lowest Energy (most stable) Highest Energy (least stable) Explain: (b) For the bond-line structure below...
9.78 The two lowest energy conformations of pentane are the anti-anti and the anti-gauche forms, in...
9.78 The two lowest energy conformations of pentane are the anti-anti and the anti-gauche forms, in terms of arrangements around the two central C─C bonds. A recent study analyzed the conformations of 3-heptyne as an “elongated” analogue of pentane, where a carbon-carbon triple bond is “inserted” between C2 and C3 of pentane.[15] Interestingly, the researchers found that in each of the two most stable conformations of 3-heptyne, C1 and C6 are nearly eclipsed (looking down the alkyne group). In one...
A) this corresponds to an anti conformation in general, gauche conformations possess the lowest post it...
A) this corresponds to an anti conformation in general, gauche conformations possess the lowest post it is stabilized by intramolecular hydrogen bonding D) it is a staggered conformation. E) it has the highest energy of all the possibilities sible minimum e gy Section 2 Give the IUPAC name corresponding to the followin onding to the following structure: ection formula for the most stable conformation of the C2-C3 2) Draw the Newman projection formula for the most stable bond in 3-methylpentane.
3. 1) Draw the Newman projection of the following compound, looking down the indicated bond. (2) Label this Newman...
3. 1) Draw the Newman projection of the following compound, looking down the indicated bond. (2) Label this Newman projections as a staggered or eclijpsed conformation. (3) Rotate this Newman projection to draw the Newman projection of the most stable conformation of this compound. (3) Label this Newman projections as a staggered or eclipsed conformation. (4) Re-draw this most stable conformation in a wedge-dash form as the original compound below is shown). a. он в н b. Cl
3. 1)...
pt iso 5. (a) For each of the molecules below, draw a Newman projection of the conformation shown. Label any gauche interactions (i) (ii) OH B (b) Draw the Newman projections of the most and least stable conformationns of 3- methylpentane, viewed along the C-C, bond. Label any gauche interactions. example of steric strain or torsional strain? (c) Is a gauche interaction an-
pt iso 5. (a) For each of the molecules below, draw a Newman projection of the conformation...
6. Build the cyclobutane ring and study the angle strain and torsional strain. Draw the structures to explain these factors. 7. The conformation of cyclobutane is slightly folded. Folding gives partial relief from the eclipsing of bonds, as shown in the Newman projection. Compare this actual structure with the hypothetical planar structure. Draw the relevant structures. 8. trans-1,2-Dimethylcyclobutane is more stable than cis-1,2-dimethylcyclobutane, but cis-1,3- dimethylcyclobutane is more stable than trans-1,3-dimethylcyclobutane. Use the molecular models to find the reasons for...
1. Draw the Neman Projection of the following Promane descriptions Newman projection for most stable Newman projection for least stable conformation conformation 2. Draw the Newman projections for butane looking down the C2-C3 bond through a full 360 degree rotation. Start with the anti-staggered Newman projection then draw and label each Newman projection (staggered, eclipsed, gauche, anti-staggered, fully-eclipsed) for every 60 degrees of rotation Newman projection for most stable Newman projection for second-most stable conformation Conformation Newman projection for least...
OCH3 3. Indicate the electrophilic or nucleophilic centers for the following compounds: a) b) d) 4. Answer the following questions regarding 2,3-dimethylbutane: a) draw any staggered Newman projection of this compound looking down the C2-C3 bond. b) draw the highest energy conformation (as a Newman projection). Label each example of steric and/or torsional strain. c) draw the lowest energy conformation. Identify any sources of steric or torsional strain if present. m md iminetahm 5 Draw tra possiblechair conformatex For Jbrom-s-7ethiTmethychayo...
How can I tell if there is Bond Angle
strain, Steric Strain, or Torsional strain just by looking at the
conformations?
(2 points) 7. List all of the types of strain in the following (2 points) 8. List all of the types of strain in the following conformation. Do not rotate any bonds. Use BAS, TS and/or SS. conformation. Do not rotate any bonds. Use BAS, TS and/or SS. If If no strain is present, write "NO Strain" no strain...
6. Conformational Analysis: Newman Projections (25 points) Consider the rotation around the C3-C4 bond of (3R 4R)-3,4-dibromohexane. C3-C4 bond. B Draw all three eclipsed Newman projections. In no particular order. Calculate the total strain associated with each conformation using the table below, enter on the provided line, and identify the least stable conformation (Circle it) Briefly explain your assignment of the least stable conformation - including which specific types of steric strain are involved. Short phrases are great complete sentences...
3. (a) A bond-line (dash/wedge) structure for butane is shown below. Using the Newman projection templates provided, draw the overall lowest energy (most stable) and overall highest energy (least stable) conformation possible in Newman projection form sighting down the bond indicated. Provide a brie explanation to justify the conformer shown for cach case. (2pts each correct Newman, 2pts for valid explanation) sight down CG- bond Lowest Energy (most stable) Highest Energy (least stable) Explain: (b) For the bond-line structure below...
A) this corresponds to an anti conformation in general, gauche conformations possess the lowest post it is stabilized by intramolecular hydrogen bonding D) it is a staggered conformation. E) it has the highest energy of all the possibilities sible minimum e gy Section 2 Give the IUPAC name corresponding to the followin onding to the following structure: ection formula for the most stable conformation of the C2-C3 2) Draw the Newman projection formula for the most stable bond in 3-methylpentane.
3. 1) Draw the Newman projection of the following compound, looking down the indicated bond. (2) Label this Newman projections as a staggered or eclijpsed conformation. (3) Rotate this Newman projection to draw the Newman projection of the most stable conformation of this compound. (3) Label this Newman projections as a staggered or eclipsed conformation. (4) Re-draw this most stable conformation in a wedge-dash form as the original compound below is shown). a. он в н b. Cl
3. 1)...
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