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- Consider 1-bromo-2-methylpropane and draw the following. (a) The staggered conformation(s) of lowest energy (b) The staggered conformation(s) of highest energyThe following are representations of two forms of glucose. The six-membered ring is known to exist in a chair conformation in each form. Draw clear representations of the most stable conformation of each. Are they two different conformations of the same molecule, or are they stereoisomers that cannot be interconverted by rotation about single bonds? Which substituents (if any) occupy axial sites?3. For each pair, predict which conformation is more stable and explain the physical reason for the difference in stability.
- Stereoisomers share the same connectivity and differ only in the way their atoms are arranged in space. Draw the structure of a compound that is a stereoisomer of cis-1,2- dibromocyclobutane. (Note that the question asks for a different stereoisomer of the named compound and not the named compound itself.) • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • In cases where there is more than one answer, just draw one.The eclipsed conformation of CH3CH2Cl is 15 kJ/mol less stable than the staggered conformation. How much is the H,Cl eclipsing interaction worth in destabilization?Stereoisomers share the same connectivity and differ only in the way their atoms are arranged in space. Draw the structure of a compound that is a stereoisomer of cis-1,2-dimethylcyclobutane.(Note that the question asks for a different stereoisomer of the named compound and not the named compound itself.)Use the wedge/hash bond tools to indicate stereochemistry where it exists.In cases where there is more than one answer, just draw one.
- What is the potential energy of a conformation?Consider 1-bromo-2-methylpropane and draw the following. Q) The staggered conformation(s) of highest energyThe anti-conformation is the most stable n-butane conformation. If you could take a snapshot of a mole of n-butane, would a sizeable number of the molecules be in the gauche-conformation? Why or why not?
- 60 120 180 240 300 360 Angle of rotation (degrees) Which of the following statements must be true? (i) There is at least one gauche interaction in the conformation at 300 degrees. (ii) The conformation at 120 degrees can have only torsional strain. (iii) There would be equal amounts of all three staggered conformations at equilibrium. O Only statements (i) and (iii) are true. O Only statement (iii) is true. O Only statements (ii) and (iii) are true. Only statements (i) and (ii) are true. O Only statement (i) is true. Relative EnergyRank the conformations of n-butane with reference to its potential energy from the most stable to the least stable. Rank from the most stable to the least stable. To rank items as equivalent, overlap them.Consider 1-bromo-2-methylpropane and draw the following. Q) The staggered conformation(s) of lowest energy