Part A: Draw the structure of cis-1-ethyl-2-methylcyclohexane. Part B: Using chair conformations, draw two conformational isomers, and determine which is more stable.
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Q: 11
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A: If you didn't get the point , you can ask! I can explain it further.
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Q: Question 28
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- The energy difference between a tert-butyl group going from equatorial to axial in a cyclohexane is 18.3 kJ/mol. When two of the carbon atoms are replaced with oxygen atoms (molecule B) the energy difference between the two chair conformations drops to 5.9 kJ/mol. Explain this difference. (Hint: Consider what makes putting groups axial unfavorable).1. a. Draw and name the five cycloalkane structures of formula C5H10. Can any of these structures give rise to geometric (cis-trans) isomerism? If so, show the cis and trans stereoisomers. b. Draw and name the eight cycloalkane structures of formula C6H12 that do not show geometric isomerism. c. Draw and name the four cycloalkanes of formula C6H12 that do have cis-trans isomers. 2. Each of the following descriptions applies to more than one alkane. In each case, draw and name two structures that match the description. (a) an isopropylheptane (b) a diethyldecane (c) a cis-diethylcyclohexane (d) a trans-dihalocyclopentane (e) a (2,3-dimethylpentyl)cycloalkane (f) a bicyclononane 3. 2. refer to the photo attached and answer the ff.3-33, 3-345. Draw the most stable conformation of 1,4-dichlorobutane using wedges and dashes to represent bonding coming out of the paper and going behind the paper, respectively. This should look like a zigzag. You can use a skeleton for the carbon backbone if you like.
- Consider 1,2-dimethylcyclohexane.Q: Draw structures for the cis and trans isomers using a hexagon for the sixmembered ring.4. Draw both geometric isomers of 1-fluoro-2-methylbut-1-ene using skeletal formula. Clearly label the E and Z isomers. [2. Draw all of the stereoisomers of dichlorocyclopentane. Use dashed lines and wedges (Hint: you should have 7 different/unique structures)
- Draw the structure of 2,3-dimethyl-1-butene. • Show stereochemistry only if given in the name. • You do not have to explicitly draw H atoms.Construct the chair structures with the molecular models for trans-1-ethyl-3-methylcyclohexane. Find the energy of each conformer, the equilibrium constant Keq, and the percentage of each conformer at 25oC. Indicate which conformer is more stable.A student drew a noncyclic compound that has the molecular formula C7H14.This molecular formula is representative of an alkane, alkene, alkyne or aromatic and would be classified as saturated or unsaturated ?
