Molecule W O A. (2R,4R)-2-chloro-4-luorohexane O B. (2R,4S)-2-chloro-4-fluorohexane OC (25,4R)-2-chloro-4-fluorohexane O D. (2S,4S)-2-chloro-4-fluorohexane
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- Construct a model of CH2BrCl using MolView and answer the following: 1. Can it be superimposed on its mirror image? (Y/N) 2. Does CH2BrCl contain a plane of symmetry? (Y/N) 3. Is CH2BrCl chiral? (Y/N)Part A. Using ChemDraw to Build Molecules. 1.) Draw t-butylcyclohexane C3 On ChemDraw, draw t-butylcyclohexane (see above). On Structure tab →Measurement > Generate all bond length (all bond angles, or dihedral angles). Locate the atoms desired. Note placing mouse on the bond also generates distances.Table shows up on the left side listing all the measured distances, angles and dihedral angles. a.) Measure the bond distance (with correct units): C1-C2 b.) Measure the bond angle (with correct units): C1-C2-C3 c.) Measure a dihedral angle, draw the molecule with the dihedral angle: d.) Define dihedral angle:v Question Completion Status: QUESTION 20 How many stereogenic centers are present in following compound? CH3 H¿C H3C. CH3 ČH3 ČH3 04 05 Click Save and Submit to save and submit. Cick Saue All Answers to save all answers. Type here to search CO CO
- Shown are two stereo representations of lactic acid. Compare the two structures shown. Determine whether they represent identical molecules or mirror images. identical COOH COOH H" OH CH3 H3C HO Determine the absolute configuration of the two structures. Left: S✔ Right: S An error has been detected in your answer. Check for typos, miscalculations etc. before submitting your answer. HHO CH3 a. Label with asterisks (*) all of the stereocentres in the molecule shown above. b. How many stereoisomers are possible? c. Draw the structures of one pair of enantiomers for the above molecule. (Hint: You should draw two structures using wedge and dashed wedge bonds.)Fönt Paragraph Styles 1. Use the lettered molecules below to answer the following questions: CI, H HO H OH H CI HO HO, B D CI ClH H, H CI CI H3CO H E F G A) Identify 1. A pair of enantiomers A 2. A pair of diastereomers D 3. A pair of meso compounds C 4. A pair of identical compounds E and E Differentiate between achiral and meso. Achiral compounds have no chiral centers whereas meso compounds have multiple chiral centers.
- Which of the following represents a meso compound? a 6 C 1. 2. H CH, Br Br Br H ** *6 CH, H₂C 3) 3. H,C. H Br H 1) Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. Br H₂C 2) Br CH,pt. 4: Molecular Models: Stereoisomers me: 4. Using the model of 2-bromobutane representing the R enantiomer from 4., switch any two groups on the chiral carbon. Compare this to your S enantiomer from 4. a. Are they the same or different? b. Are they the same or enantiomers? C. Now switch any pair of groups around the chiral carbon of the "switched" model again! Compare the "double-switched" model with the other unmodified S molecule from 4. Are they enantiomers or are they identical? С. Shown below is the Fisher projection of (R)-2-bromo-(S)-3-chlorobutane. ne mirror image of this stereoisomer and assign the RIS configurations of iral carbons for both isomers. е ll erDetermine the R/S configuration of each chiral center in the molecules shown below. (Do not include lone pairs as an attachment when identifying the chiral centers.)
- I. Indicate the correct correlation between the following pairs of molecules. Write the appropriate letter in the box. S = Same Compound, E = Enantiomers, D = Diastereomers, and C = Constitutional Isomers. Br and 1. HBr Br 2. and Br and 3. and 4. 2Circle all the Chiral carbons in this compound and assign the absolute configuration as R ors. 0 On the Chair template provided draw ( (15,35)-1-bromo-3-methylcyclohexane. € This page left intentionally blank for scratch work.II. Indicate the correct correlation between the following pairs of molecules. Write the appropriate letter in the box. S = Same Compound, E = Enantiomers, D = Diastereomers, and C = Constitutional Isomers. (? Br CI CI Br 7. and 8. 9. and and Br "Br CI CH3 CI CH3 HBr and CH H- Br and 11. 10. Br Br -H CH,CH3 CH,CH3