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Thank you for the answer, I am just wondering that if the double bonds should be considered as chiral centres in this molecule?
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- 2. Compare SANS and SAXS and NMR techniques determining polymer chain structure, which one requires dissolving the polymer in a dilute solution.Analyze the structure of the two stereoisomers and then determine whether one or both of them is (are) chiral (s). Explain your reasoning.What are the configurations of all chiral centers of the attached molecule? Please state the answer in clear words along with any pictures/reactions.
- I have already drawn helicene as an example but I am stuck on thinking of two other compounds. I know that an asymmetrically substituted carbon atom has 4 different substituents attached to the carbon. But, I am confused about finding other structures that are still chiral but do not have an asymmetrically substituted carbon atom.For the cyclohexane structures shown below, draw both chair structures for each and identify which is lower in energy (briefly explain why).Provide an example of a molecule that has 4 chirality centres, but does not have 16 stereoisomers. Why doesn’t this molecule have 2n stereoisomers? Explain.
- a) Are these molecules chiral? In a few sentences, explain your reasoning for your classification of each compound. b) Show structures that help support your written explanations about chirality. You should show a structure for each problem. You should not just reproduce the image, you should SHOW how you identified whether or not the molecule is chiral.Aminopropane is an achiral molecule, but 2-aminobutane is chiral. Explain.What type of stereochemistry, S or R, does the chiral center in this molecule have?
- To the following statement, answer true or false and explain your answer. Q)To be meso, a molecule must have at least two chiral centersProvide the isomers of Vanillin (C8H8O3) and explain how we are sure which isomer the HNMR and CNMR data attached correspond to.The molecule below belongs to a group of interesting molecules called ‘helicenes’. This compound has a specific rotation []25D of –8890! This molecule does not have a chiral center yet it is chiral. What kind of stereoisomerism is this called?