Hexahelicene seems a poor candidate for optical activity because all its carbon atomsare sp2hybrids and presumably flat. Nevertheless, hexahelicene has been synthesized and separated into enantiomers. Its optical rotation is enormous: [a]D = 3700°.Explain why hexahelicene is optically active, and speculate as to why the rotation isso large

Q: H₂N O atom 1 CH3 atom 2 02 isoxazole ring Assuming the heterocyclic ring above to be planar: Give…

A: For the given structure, we have to calculate the number of electrons contributed to the pi system…

Q: Identify the stereochemistry of this molecule.

A: Here stereochemistry of the given molecule can be known by CIP rule

Q: tereocenters, give the number of stereoisomers for each, and draw and fully name tereoisomers in…

A: Isomers are molecules where two or more compounds have the same chemical formula but different…

Q: Assign the configuration to each asymmetric carbon as R or S. NO2 (b) NO2 (c) (d) OCH3 (a) Br

A: (a)

Q: F H pan ncate enantiomers, diastereomers of one another, or identical molecules. ÇH. CH CH, CH, and…

A:

Q: Which of the following compounds is optically active? Explain your answer. (C4) Cl,C=CH(CH,)…

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Q: Two disubstituted cyclohexane molecules are depicted. Classify the pair as the same compound,…

A: Molecules with the same chemical formula but different arrangements in space are called isomers.…

Q: Draw examples of the following: (a) A meso compound with the formula C8H18 (b) A meso compound with…

A:

Q: Give the IUPAC name

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Q: Many naturally occurring substances contain several carbon–carbon double bonds: some isolated, some…

A: Many naturally occurring substances contain several carbon-carbon double bonds: some isolated, some…

Q: How many degrees of unsaturation does each of the following drugs contain? a.zolpidem (sleep aid…

A: The degree of unsaturation is calculated as shown below where nc, nN, nH, nX are the number of atoms…

Q: Draw all possible constitutional isomers and stereoisomers for acompound of molecular formula C6H12…

A: Since the compound is having a cyclobutane ring and two methyl groups as substituents. Hence the…

Q: NH2 NCH2 CH2 The stereochemistry around this chiral carbon is: O cannot be determined. Rand S OR OS

A:

Q: Are they identical, constitutional isomer, enantiomer, diastereomer, meso compound or conformer?

A: Isomerism is the phenomenon in which more than one compound has the same chemical formula but a…

Q: Name the following compounds: (b) CH₂CH₂CHSH CH3 CH₂CHSCH₂CH₂ (e) CH3 SH CH3 CH₂CCH₂CHCH₂CHCH₂ CH₂…

A: "To get remaining sub-parts solved please repost the complete question and mention the sub-parts to…

Q: Ignoring the possibility of stereoisomers, what is the IUPAC name of the following substance? CH₂CH

A:

Q: 5.) How many stereogenic centers are present in the following compound derived from citrus oils? А.…

A: The answer is given as follows

Q: (c) Draw the enantiomer of the following molecules: -NH L CH3 CH3

A: A question based on stereochemistry of organic compounds. An organic compound is given in three…

Q: Draw the lowest molecular weight chiral compound that contains only C, H, and O and fits each…

A: Draw the lowest molecular weight chiral compound that contains only C, H, and O and fits each…

Q: Draw Newman projections for staggered and eclipsed conformations formed by rotation about C2 – C3…

A: a).In the following image Structure 1`,  3   and 5 are staggred conformations. Structure 2,   4  are…

Q: Which of the following compounds is chiral.

A: To solve this problem first we have to know about the chiral compound .  A compound is said to…

Q: OH ОН В For the following molecule B Give the number of stereoisomerism elements:

A:

Q: Describe the conformation of rings A, B, C, and D in cholestanol.

A: A) A-B rings ; B) B-C rings ;

Q: how many resonace can this compound form？please draw other resonace and show the arrow

A:

Q: 5) if compound B is treated Na BH4 in CH₂OH, it will react selectivley w/ one of the two carbonyl…

A: NaBH4 is selective reducing agent for carbonyl group of either aldehyde or ketone. Ketone undergo…

Q: Is the methyl group at the junction of rings C and D axial or equatorial to ring C?

A: A chair conformation is a way of showing a cyclohexane ring and its substituents. All bond angles…

Q: Calculate the number of degrees of unsaturation for each molecular formula, and propose two possible…

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Q: Which pair of structures are constitutional isomers? (a) A and B (b) A and C (c) C and D (d) all are…

A: Note: According to our guidelines we are supposed to answer only one question.  Kindly repost other…

Q: How many degrees of unsaturation for C9H15NO2?

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Q: Which is the enantiomer of this molecule? NH₂ (A) (C) O A B NH₂ R NH₂ I (B) (D) ď NH₂ H₂N- H

A: A pair of substances which are non-super imposable mirror images are called enantiomers.A pair of…

Q: (a) Assign the configuration (R or S) of each chirality center (labeled A to C) in coibacin B. (b)…

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Q: Pseudophedrine is a naturally occurring biologically active molecule with two stereogenic centers,…

A: The RS nomenclature is an important nomenclature system for denoting the configuration of the chiral…

Q: How many degrees of unsaturation does in the following drugs contain? mefloquine (antimalarial…

A:

Q: Pyrethrin II and pyrethrosin are two natural products isolated from plants of the chrysanthemum…

A: The structure of Pyrethrosin is as follows:

Q: Identify the stereochemical configuration of this cyclic compound. CI R S C

A: Given compound is :

Q: 5.) How many stereogenic centers are present in the following compound derived from citrus oils? A.…

A: A stereogenic center is an sp3 hybridized carbon atom that is bonded to four different groups of…

Q: 5. Please draw out the confirmation of alicyclic compounds for molecular formula C6H12

A: The different conformations for an alicyclic compound having molecular formula = C6H12 can be drawn…

Q: 11 In the six following sets, which pairs of structural for- mulas represent constitutional isomers?…

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Q: 3) Which of the following molecules are enantiomers он OH OH "NH2 'NH2 H2N' ČI (a) (b) (c) CI CI H2N…

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Q: 1,2-ethanediol

A:

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.