4. A compound has two carbons each with the same set of four different substituents, but does not rotate plain polarized light. The configuration of the compound is:
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- Drawn are four isomeric dimethylcyclopropanes. Which compounds have a plane of symmetry?Determine the configuration for every chiral center in the following compound:Alanine, an amino acid found in proteins is chiral. Draw the two enantiomers of alanine (R and S) using the standard convention of solid wedged and dashed lines:
- What are the points need to keep in mind, When trying to distinguish between chiral and achiral compounds ?Consider the structure of the molecule below The absolute configuration (R/S) of the chiral carbon with chlorine is The enantiomer of this structure is (draw it to the right): Draw a constitutional isomer of the molecule (draw it to the right):Draw a pair of cis/trans stereoisomers with a molecular formula of C7H14. Label the cis compound and the trans compound
- Draw 5 Chair Conformations of Cyclohexane with right side pointing up and 5 with the left side pointing up.a) draw the newman projectjon between C3-C4 bond for all of the structures over 360 degrees of rotation. start with highest energy of conformation b) starting at 0 degrees draw a qualitative torsional energy plot as a function of degree of rotationHow many total s bonds are there in Aflatoxin B1? How many p bonds are there in Aflatoxin B1? Label each chiral carbon in Aflatoxin B1. How many total stereoisomers exist for Aflatoxin B1?
- (a) Using Newman projections, draw all staggered and eclipsed conformations that result from rotation around the bond highlighted in red in each molecule; (b) draw a graph of energy versus dihedral angle for rotation around this bond.Which of the following conformers has the highest energy (the least stable)?Justify your choice3. Which of the following does not show conformational isomerism and Explain the reason for each? A. Ethane B. Ethene C. Ethyne D. Methane. 5. Why conformational isomers generally can not be separated from one another at room temperature?