In the Fischer projection below, what are the configurations of the two asymmetric centers? H2CH HO ČH,CH2OH 2R, 3R 2R, 3S 2S, 3R 2S, 3S cannot be determined from structure Туре: МC
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- 4- [PtCl4]? has a center of symmetry, but [NiCl4]? does not. Suggest a correct shape for each of them and draw it.A) For a molecule with three chiral carbons the possible number of stereoisomers is: 4, 8, 6 or 2 B)Which of the following has a S configuration: (Image)Is chiral center b r or s or neither?
- How can the s/r configuration be determined by Fischer Projection4. For each of the following structures:a. Identify Chiral Centersb. Identify the chiral carbon configuration as R or Sc. Identify internal symmetry centers if they existd. Identify whether the structure is chiral or achirale. Identify mesostructures from existingHow many asymmetric centers does 2,4,6 tnmethy iheptane have
- Most naturally occurring amino acids have chiral centers (the asymmetric a carbon atoms)that are named (S) by the Cahn–Ingold–Prelog convention (Section 5-3). The commonnaturally occurring form of cysteine has a chiral center that is named (R), however.(a) What is the relationship between (R)-cysteine and (S)-alanine? Do they have the oppositethree-dimensional configuration (as the names might suggest) or the same configuration?(b) (S)-Alanine is an l-amino acid (Figure 24-2). Is (R)-cysteine a d-amino acid or anl-amino acid?Specify the configurations (R or S) at ALL chiral centers in the molecules below. Please note that some molecules below may have more than 1 chiral centers, and you are responsible to find all the chiral centers.K How many chiral centers does the following molecule have?
- Mark all chiral center(s) with an asterisk.b. Determine the max number of possible stereoisomers that could be drawn from thisstructure. please explain each step.Draw three-dimensional representations of the following compounds. Which have asymmetric carbon atoms? Which have no asymmetric carbons but are chiral anyway? Use your models for parts (a) through (d) and any others that seem unclear.1,3-dichloropropadieneDraw the flying wedge reperesentation of its mirror image (II) Are I and II chiral? Yes or No?