The image presents two sets of chemical structures labeled as "a" and "b," each with two molecular diagrams.### Set a:- **Diagrams:** - Two cyclohexane chair conformations with substituents labeled with hydrogen (H) and methyl groups (CH₃).- **Options:** - Identical (Starred) - Enantiomers - Diastereoisomers - Structural isomers### Set b:- **Diagrams:** - Two cyclohexane chair conformations with substituents labeled with hydrogen (H), methyl (CH₃), and ethyl (Et) groups.- **Options:** - Identical (Starred) - Enantiomers - Diastereoisomers - Structural isomersThese sets appear to assess the relationship between the given molecular structures, requiring identification of the correct isomeric relationship, with "Identical" marked as the correct answer for both sets.

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Answered: H CH3 CH3 H3C- H3C- CH3 a. CH3…

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter12: Chirality

Section: Chapter Questions

Problem 6E

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Hello, I was reading an answer from the book Organic Chemistry by Brown et al. The question is 2.51 "Draw alternative chair conformations for each substituted cyclohexane and state which chair is more stable." There are then 4 cyclohexanes (labeled a-d). For the "a" cyclohexane, the substituents are arranged as a combination of axial and equatorial in both chair conformations. However, for the "b," "c," and "d," cyclohexanes one chair has only equatorial substituents, and the other chair has only axial substituents. Why is the "a" chair conformation different? https://www.bartleby.com/solution-answer/chapter-2-problem-251p-organic-chemistry-8th-edition/9781305580350/draw-alternative-chair-conformations-for-each-substituted-cyclohexane-and-state-which-chair-is-more/4532cd91-c341-11e9-8385-02ee952b546e
For the following two pairs of molecules, (1) Draw out the chair conformation for each molecule, flip the ring if it is possible. (2) Compare both molecules to circle out which one is more stable. (3) Identify their relationship as: constitutional isomer, conformational isomer, stereoisomer or identical. (4) Find all the chiral center on each molecule and label them. VS. ****
Review Topics] References) Indicate whether the pair of structures shown represent stereoisomers, constitutional isomers, different conformations of the same compound, or the same conformation of a compound viewed from a different perspective. Note that cis, trans isomers are an example of stereoisomers. H3C. H3C -Br Br OCH3 H3C- H3C. LOCH3 Retry Entire Group 9 more group attempts remaining Submit Answer >
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4. Isomers and Stereocenters ( (a) Assign each set of molecules as constitutional isomers, conformational isomers, enantiomers, diastereomers, or identical. Please write the full name for the type. Molecules Type (b) H₂Ca HgC.. CH3 OCH₂ CH3 af OCH, SP H₂C**** H₂C H₂C NGOCH, H.C_OCKS OCH₂ CH₂ H₁C HC H*** CI H H CI Br H3C CH₂ Br (d) E) (0) For each of the following molecules, write the number of stereocenters and circle the center of any stereocenters. (i) (ii) H₂C (онт (eg 5) (b) -CH3 Isegna CH3 on mots eno H₂C CH3
Consider the graph below, which plot of the relative energies of the various conformations of butane, viewed through C2-C3 bond. The conformations corresponding to 180° is: ... |- F F- 0° 60° 120° 180° 240° 300° 360° Angle of rotation (A) eclipsed, less stable than the conformation at 0° (B eclipsed, more stable than the conformation at 0° C staggered and gauche (D) staggered and anti Retative onergy
1号 ****** 4. Draw both chair conformations of 15, 35-dibromo-5R-methylcyclohexane. Indicate which conformation is lowest in energy. Hint: Draw it with cyclohexane flat first Thinning *********
How do you account for the difference in energies between the two staggered conformations of 1,2-dichloroethane? How about for the two eclipsed conformations? Draw all four conformations and, on your drawing, indicate sources of strain – torsional, steric (gauche), steric eclipsed.
O OWLV2 | Online teaching and learning resource fro. C Indicate Whether The Pair Of Structurės Shown Re. G different coniormations Paraphrasing .ewriting Tool Car note Pirate Ship BLACKBOARD [Review Topics] [References) Indicate whether the pair of structures shown represent stereoisomers, constitutional isomers, different conformations of the same compound, or the same conformation of a compound viewed from a different perspective. Note that cis, trans isomers are an example of stereoisomers. CI CI H H. H. ČH3 CH3 different conformations e CH3 CH3 CH3 H. req CH3 same conformation Retry Entire Group 7 more group attempts remaining Submit Answer Previous Next Save and Exi étv 15 MacBook Air 80 888 DII DD F3 EZ F9 F10 F11 F12 # 2$ % & * ( + 4 5 6 7 8. 9. { } E Y U %3D G H J K L + || .. .-
4. - Determine the structural relationship between the compounds in each of the pairs that follow. They may be unrelated, identical (the same compound), constitutional isomers, diastereoisomers, enantiomers? - Identify the optically active (chiral) compounds and any meso compounds. - Assign a configuration (R or S) to all stereocenters. - Name all compounds so that the name reflects the structure unambiguously. a) b) c) d) e) f) H- HO- CHO H3C -NH₂ H- -H H- CH2OH H CH3 CH3 H Ph H CH3 H H CI Ph H H CI CH3 CH₂OH -OH -NH₂ CI H H CI & t OH CHO H3C H OH O-CH3 oma O-CH3 H3C OH
2)- Determine the total number of conformers of the tetra-substituted cyclohexane structure given below (L.e, Draw the chair conformers of A that are, 6-levels of stability from the most stable of A, the sixth most staat conformer ofA, 9-levels that is unstable from the most unstable of A, and 5-levels of insta from the most unstable of A and the conformers of A that is representative of B. Note, only a total of six structures should be written on your paper. Also, include hydrogen atoms wherever are substituents on all of your chair conformers. Note, a table listing is a requirement for this problerm Answer (Total # of Conformers of A): 6-Levels of stability from the most stable of A: The sixth most stable conformer of A: 9-Levels that is unstable from the most unstable of A 5-levels of instability from the most unstable of A 스 Conformers of A that is representative of B:
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H CH3 CH3 H3C- H3C- CH3 a. CH3 Identical Enantiomers Diastereoisomers Structural isomers Coupants Et ade CH3 H Et H. CH3 Et ČH3 H3C TH. b. Et A Identical Enantiomers Diastereoisomers Structural isomers