Explain why [1,3] sigmatropic migrations of hydrogen cannot occur under thermal conditions, but [1,3] sigmatropic migrations of carbon can.

Q: 1 chkro 2 bulene What wil be me afact of the "alyke" cnuke band an SN1 rcactiity?

A: SN1 reactions are nucleophilic substitution reactions in which first step is generation of…

Q: Draw the structure of 1-methoxy-1,3-butadiene, construct the diagram energy for molecular orbitals,…

A: In 1-methoxy-1,3-butadiene, C1 is bonded to methoxy group and double bonded to C2. C3 is also double…

Q: The dipole moment of bromobenzene is 5.17 × 10−30 C m and its polarizability volume is approximately…

A:

Q: Identify the bond order and magnetic effect for N2+

A:

Q: 2. a) Determine the crystal field stabilization energy for octahedral d (10Dq:25,000 cm-1 and P (the…

A: Dear Subscriber! You have posted multiple questions. As per our policy we have solved only first one…

Q: (i) Determine the IR and Raman active modes of vibrations for both the cis and trans isomers of…

A:

Q: Among TiCl4, VCl3 and FeCl2- which one will be drawn more strongly into a magnetic field and why?

A: Given :     Among TiCl4, VCl3 and FeCl2- which one will be drawn more strongly into a magnetic…

Q: 4. (a) Give the expansions and explain the following terms used in retrosynthetic descriptions using…

A:

Q: For each of the following molecules and ions, identify if it has a centre of inversion (i) and/or an…

A: It is a type of symmetry in Inorganic molecules. Center of inversion means all other atoms can…

Q: The DFT-calculated bond distance measures 0.7462 Å for H, and 1.1377 Å for He,. If the atomic radii…

A: The molecular orbital configuration of H2 is σ1s2 and the molecular orbital configuration of He2+…

Q: A ligand is bound to a protein with a spring-like square-law energy e(x), where x is the distance…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Why is spin-pairing so common a features of bond formation (in the context of valence-bond theory)?

A: Spin pairing  is two elctrons with opposite spins usually occupying the same orbital.  A bond is…

Q: Explain in detail what are dienes and how many types of dienes are there and the difference between…

A: The name of hydrocarbon ends with suffix "ene" termes as alkenes. Alkenes are hydrocarbons having…

Q: с. Find the most probable r of the RDF (in Å) for 3do orbital of the H-atom.

A: A hydrogen atom is an atom of chemical element Hydrogen. The electrically neutral atom contains a…

Q: What is the index of hydrogen deficiency for the following molecule? S. S. NH2 H2N O 1 O 2 O 3

A:

Q: The coordinates of the atoms of an ethanoic acid dimer are set out in more detail as shown. Consider…

A: Ethanoic acid contains -OH group. This alcoholic group makes hydrogen bonding with the another…

Q: What is the change in potential energy if the distanceseparating the electron and proton is…

A: The energy stored in an object is defined as potential energy.

Q: Calculate the Kuhn monomer length b and number of Kuhn monomers N of a freely rotating chain…

A: The Kuhn length is conceptual concept which is given by Hans Kuhn. In this a real polymer chain is…

Q: CoH12 (1) + 902 (g) 6CO:(g) + 6H;O() For CeH12(0), AH; =- 151.9 kJ/mol. AH; (CO,,g)=-393.5kJ / mol…

A: When ∆Hof values are given, we can calculate  ∆Hrxn using the formula below: ∆Hrxn = ∑(∆Hof of all…

Q: 1. Treat the XY molecule as consisting of nonoverlapping spher- ical X* and Y ions separated by 3.12…

A: Given: Separation between ions X+ and Y- (r) = 3.12 Å = (3.12 x 10-10 m) Ionization energy of X =…

Q: The tetrachloroplatinate anion has Dah symmetry. Use sketches to show that the Pt dxy orbital has…

A:

Q: suggest with a valid reason whether [CoBr6]4- will undergo Jahn-Teller distortion

A:

Q: Determine the produc of the rxn (CH,),CuLi H+ 2. a. b. с. d. Но но

A:

Q: Calculate f(E), the probability predicted by the Fermi–Dirac distribution, for the case where the…

A:

Q: 4. Find out the comrect order of increasing wavelongth in UV-vis spectroscopy for the molecules and…

A: in UV-vis spectroscopy, more the conjugation of alkene, energy gap decreases between HOMO and LUMO.…

Q: 4. Using the x , y, and z coordinates for each atom in N2O4, which is planar and has a…

A: Fach atom can move in three dimensions If all atoms move the same amount on the same direction the…

Q: Discuss the origins of the local, neighbouring group, and solvent contributions to the shielding…

A: The Shielding constant can be determined by the sum of the three contributions which is given as…

Q: 6) Give a representation of the lowest occupied л MO of 1,3-butadiene in its ground state.

A:

Q: Why [Co(CN)6]3- is likely to show a Jahn-Teller distortion.

A:

Q: How many hyperfine peaks would be expected from delocalization of the odd electron in dibenzene…

A: Hyperfine splitting is observed due to coupling of the unpaired electron with nuclei's present in…

Q: Benzene is usually modeled as a particle on a ring, however we can assume that the six π electrons…

A: Benzene has six π electrons which are delocalized within a square plate of side a. Benzene like…

Q: Provide brief definitions of fluorescence and phosphorescence, with aid of a Jablonski diagram.

A: Photochemistry via branch of chemistry that deals with study of interaction of radiations with…

Q: For the LMCT bands of [Co (NH3)5Br]2+, would you expect solvatochromism, i.e., dependence of the…

A: LMCT (Ligand to metal charge transfer) occurs when the ligand coordinated to the central metal ion…

Q: Tungsten hexacarbonyl (W(CO)6) is reacted with (EtC≡N) and the product is W(CO)3(N≡CEt)3. However,…

A: determination of irreducible representations.

Q: Eu2 and Yb?* are relatively stable due to the preferential stability for half- filled and…

A: The electronic configuration of Eu2+ is [Xe]4f7 (Half filled f-orbital) The electronic configuration…

Q: Provide brief definitions of fluorescence and phosphorescence, with aid of a Jablonski diagram

A:

Q: Give relation between delta S and orientaion of molecule.

A: The relation between delta S and orientation of the molecule has to be given,

Q: Which has a lower characteristic stretching Frequency, the C=O bond or band C-O bond.

A: We are to discuss which bond C=O or C—O has lower streching frequency.

Q: Describe the lowest excited state of an insulating solid and briefly comment on its relevance to…

A: The lowest excited state of an insulating solid

Q: Under which conditions (Δ, hϒ) 1,5- and 1,3- sigmatropic shifts takes place and why? Elaborate with…

A:

Q: /hich of the 4 vibrational modes of carbon dioxide are IR active? Explain! b) c) d)

A: IR spectroscopy in mainly used for the identification of the functional group present in the…

Q: Ethanoic acid vapour contains a proportion of planar. hydrogen-bonded dimers . The apparent dipole…

A: The attractive forces found between two dipole which are permanent are dipole forces. The attraction…

Q: 2. The molecule buta-1,3-diene is an easily isolatable gas with a normal boiling point just below…

A:

Q: State the Franck Condon Principle and, with the aid of diagrams, explain how electronic transitions…

A: In spectroscopy and quantum chemistry, the Franck-Condon principle is a rule that describes how…

Q: 7. (a) Use Woodward-Feiser rules to calculate of compound (I) and (!I): the 2max (I) (II)

A: These rules provide a theoritical basis to calculate wavelength of transition in UV visible…

Q: Calculate the resultant of two dipole moments of magnitude 2.5 D and 0.50 D that make an angle of…

A: μnet  = μ1+μ2 +2μ1μ2cosθ  μnet  = 2.5+0.50 +2x 2.5 x 0.50 cos120°  μnet  = 2.5+0.50 +2x 2.5 x 0.50 x…

Q: the total number of vibration for HNF2 3A' + 3A " O2A' + 4A " 11 A' +4A " 11 4A' + A " 4A "+2A 11 11

A: The molecule is given as HNF2. It belongs to Cs point group. The N-F bond of HNF2 is responsible for…

Q: assign E/Z configurations

A: Z configuration

Q: On the template shown below, represent pictorially one possible quartet microstate for a free ion…

A: Microstate means possible electronic configuration. Quartet microstate means the possible electronic…

Repulsive and Total Interactions Between Molecules

Intermolecular forces are the repulsive or attractive interaction between the molecules. Due to the coulomb’s law, there will be a coulomb force that exists between two or more charged species. If the charge of both molecules is positive or negative, then that will lead to repulsive forces. When they have opposite charges, then the force is attractive.