Identify the s-cis conformation of (3Z,5Z)–4,5–dimethyldeca–3,5-diene.

Q: Consider the structure (6R,7S)-6,7-dimethyl-1,2,3,4,6,7-hexahydronaphthalene of…

A:

Q: Explain the equitorial and axial orientation of the substituents in the more stable forms of the cis…

A: 1-isobutyl-2-methylcyclohexane exists in chair form and contains an isopropyl group and a methyl…

Q: What is the molecular model for cis-1,3-dichlorocyclohexane and discuss its most stable conformation…

A:

Q: The C=C double bond for a trans-cyclooctene is relatively short 1.33 A vs. 1.347 A for…

A: Double Bond of cyclic systems is generally shorter than the ordinary double bond.

Q: Predict the products for the hydrohalogenation reaction of 1-methyl-1,3-cyclohexadiene with 1…

A: The structure of 1-methyl-1,3-cyclohexadiene is as follows: The compound contains two conjugated…

Q: Describe the ground-state electron configuration of the cyclopentadienyl cation and radical.…

A:

Q: 3) Draw both chair conformations of (1S,3R)-1-chloro-3-isopropylcyclohexane. Clearly mark the most…

A:

Q: Determine the number of IR active C-H stretching modes for cyclohexane chair conformation

A: The most stable conformation of cyclohexane is chair conformation. The C-C-C bonds are very near to…

Q: How many degrees of unsaturation would be expected for compounds of this formula: C5H₂O a. 0 b. 3 c.…

A: Given here a compound with chemical formula and we are asked the degrees of unsaturation for the…

Q: E. Bromination of cyclohexenes initially results in the formation of a diaxial product which usually…

A:

Q: Create a 3D model of the most stable chair conformation of  (1R,3S)-3-chlorocyclohexan-1-ol

A: In substituted cyclohexanes, stable conformation has the maximum number of substituents on the…

Q: Bromination of 1,5-cyclooctadiene with N-bromosuccinimide (NBS) gives a mixture of two…

A: The reagent NBS (N-bromosuccinimide) is used for the allylic bromination. Here, the allylic…

Q: 3. Which stereoisomer can obtain the least amount of conformational strain, cis- or trans-1,3-…

A: In the 1,3-disubstitution pattern (whether it is dimethyl or any other 1,3-dibsubstitution), both…

Q: draw structures for all the isolated, conjugated, and cumulated dienes of molecular formula C5H8.

A:

Q: How many stereoisomers are possible for 4-methyl-1,2-cyclohexanediol?

A:

Q: How many stereoisomers exist for 1-chloro-2-methylcyclobutane?

A: Stereoisomers as defined as molecules which have same molecular formula and same molecular mass but…

Q: Identify the lowest-energy conformation of this cyclohexane derivative. 'Ңн н!н H HHH ін н ZHH н н…

A:

Q: Consider (1R, 2S, 3S)-1-bromo-2- chloro-3-fluorocyclohexane, shown below. The most stable…

A: Given: (1R, 2S, 3S)-1-bromo-2 chloro-3-fluorocyclohexane Structure:

Q: Identify the Newman projection that depicts the eclipsed conformation of 1- bromopropane. Br Br II…

A: Eclipsed conformation are those conformation in which atoms Xand Y are at closest proximity with…

Q: Assuming standard valencies (C = 4, H = 1, N = 3, 0 = 2, and X = 1), a compound with molecular…

A:

Q: 7. Compound (2E4Z,6Z,8E)-2,4,6,8-decatetraene has been cyclized to give 7,8-dimethyl- 1,3,…

A: Given is ring closure reaction.

Q: 1-Chloro-1,2-diphenylethane can undergo E2 elimination to give either cis- or…

A:

Q: Identify the s-trans conformation of (3Z,5Z)–4,5-dimethyldeca–3,5–diene.

A: E,Z nomenclature is given to  double bond in which each olefinic (double bond) has different groups.…

Q: Polymer PXX has a glass transition temperature of 49°C. Describe the molecular conformation and…

A:

Q: Describe and explain the stereochemistry of 2-bromo-1-chloropropane molecule

A: for an optically molecule, pair of enantiomers exists.

Q: H H. hydrogen peroxide H Br Br CI 1,2-dibromo-1,2-dichloroethane boric acid, planar conformation

A: Molecules can be classified as polar or non polar depending upon the electronegativities of the…

Q: Given that the change in free energy between axial and equatorial chlorine is 0.52 kcal.mol-1 , what…

A:

Q: 17. In the space provided below please draw (cis)1,3-dimethylcyclohexane in the most unstable chair…

A: Concept:  1) most unstable conformation meaning that the molecule will have higher energy & this…

Q: Draw the structure consistent with each description. a.(2E,4E)-octa-2,4-diene in the s-trans…

A:

Q: Determine the symmetry of the IR active C-H stretching modes for cyclohexane chair conformation

A:

Q: :Regarding 1,3-butadiene When substituted by two phenyl groups the cis- conformation wavelengths…

A: Given molecule is: 1,3-butadiene. How the substitution on 1,3-butadiene effect its absorption in…

Q: 2, 3-Di-tert-butyl-1, 3-butadiene exists nearly exclusively in one conformation. What is the…

A: The given compound is 2,3-di-tertbutadiene. Since, it is an alkene it should have at least two…

Q: Arrange the following compounds in the increasing order of reactivity towards Conc.HNO3 & Conc.H2SO4…

A: Reaction of these organic compounds with HNO3 and H2SO4 is electrophilic substitution reaction.…

Q: NaSH DMSO CI

A:

Q: What is the energy difference between the staggered and eclipsed conformations of…

A: A staggered and the eclipsed conformations of alkane are conformational extremes for that molecule.…

Q: What is the degree of unsaturation for a molecule with the molecular formula C15H12N2

A: Degree of unsaturation: It indicates the number of ∏-bond and number of rings that are present in a…

Q: Give the most stable conformation for (1S, 2S)-1-methoxy-2-chlorocyclohexane.

A: R/S nomenclature is based on C.I.P. rule.  1 to 2 to 3 clockwise rotation = R if 4th group is…

Q: The diaxial conformation of cis- 1,3-dimethylcyclohexane is approximately 23 kl/mol (5.4 kcal/mol)…

A: We have been asked to draw the chair conformation and show the unstability of diaxial conformation.

Q: Consider the radical halogenation of pentane. What are the possible mono-halogenated products? Label…

A: Free radical proceeds reaction with saturated organic molecules by abstracting an atom from carbon.…

Q: Calculating the Number of Degrees of Unsaturation in a Hydrocarbon Calculate the number of degrees…

A: Degree of unsaturation is also known as Double bond equivalentDOU makes it easier for the one to…

Q: E. Bromination of cyclohexenes initially results in the formation of a diaxial product which usually…

A: Substituted cyclohexene can be draw as below

Q: Which compoundshave zero dipole moments?  cyclohexene or 1,2-dichlorocyclohexene

A: The structure of cyclohexene and 1,2-dichlorocyclohexene is shown below.

Q: Br2 HO. CH3NO2 Br

A:

Q: Determine whether the (LUMO+1)<-HOMO transition in benzene is electric-dipole allowed or forbidden.…

A: Benzene is a non polar molecule  It is also symmetric in which all the bond dipoles cancel out each…

Q: How many stereoisomers are possible for 2,4-heptadiene?

A: Total number of stereocenters in a 2,4-heptadiene molecule = 2 Total number of possible…

Q: Draw a structural formula for 2-cyclopenten-1-ol. • Show stereochemistry only if given in the name.…

A: The structural formula for 2-cyclopenten-1-ol is:

Q: Show that the [4 + 4] cycloaddition of two butadiene molecules to give cycloocta1,5-diene is…

A:

Q: Which of the following Newman projections represents (2R,3R)-dibromobutane?

A:

Q: Compound (2E,4Z,6Z,8E)-2,4,6,8-decatetraene has been cyclized to give 7,8-dimethyl- 1,3,5-…

A:

Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.