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- Draw the molecular orbital diagram of a linear C-H (i.e. one carbon atom bonded to one hydrogen atom). Draw out the MOs for orbitals containing electrons. 1. Would you expect C-H to behave as a carbocation, carbanion, or radical? 2. Would removal of one electron from C-H to generate C-H+ increase or decrease the bond length between carbon and hydrogen?What are all of the types of orbital overlaps that occur in the above structure. p-p overlap sp²-sp overlap s-sp² overlap sp²-sp² overlap s-sp overlap sp-sp overlap s-s overlap ---------- In cumulene, what are the C=C=C and H−C−H ideal bond angles, respectively?Enter the C=C=C bond angle followed by the H−C−H bond angle separated by a comma (no spaces, no º symbol required).The pentadienyl radical, H2C“CH¬CH“CH¬CH2#, has its unpaired electron delocalized over three carbon atoms.(a) Use resonance forms to show which three carbon atoms bear the unpaired electron.(b) How many MOs are there in the molecular orbital picture of the pentadienyl radical?(c) How many nodes are there in the lowest-energy MO of the pentadienyl system? How many in the highest-energy MO?(d) Draw the MOs of the pentadienyl system in order of increasing energy. (continued)762 CHAPTER 15 Conjugated Systems, Orbital Symmetry, and Ultraviolet Spectroscopy(e) Show how many electrons are in each MO for the pentadienyl radical (ground state).(f) Show how your molecular orbital picture agrees with the resonance picture showing delocalization of the unpairedelectron onto three carbon atoms.(g) Remove the highest-energy electron from the pentadienyl radical to give the pentadienyl cation. Which carbon atomsshare the positive charge? Does this picture agree with the resonance picture?(h) Add an…
- The pentadienyl radical, H2C“CH¬CH“CH¬CH2#, has its unpaired electron delocalized over three carbon atoms.(a) Use resonance forms to show which three carbon atoms bear the unpaired electron.(b) How many MOs are there in the molecular orbital picture of the pentadienyl radical?(c) How many nodes are there in the lowest-energy MO of the pentadienyl system? How many in the highest-energy MO?(d) Draw the MOs of the pentadienyl system in order of increasing energy1. Explain the two ways that methane (CH4) illustrates the need for hybridized molecular bonds. Draw a picture to represent the hybridization of carbon's orbitals and their overlap with hydrogen's. Label each orbital used in bonding with its letters and each bond as sigma or pi.What are the overlapping orbitals between nitrogen and carbon in aniline? sp2-sp2 p-p sp3-sp3 sp3-sp2
- (a) How many π molecular orbitals are present in deca-1,3,5,7,9-pentaene (CH2 = CH – OH = OH – CH = CH – OH = OH – CH = CH2)? (b) How many are bonding MOs and how many are antibonding MOs? (c) How many nodes are present in ψ1? (d) How many nodes are present in ψ10*Let us construct the molecular orbital diagram of ethylene (in pieces). a. First, construct the MO diagram of linear carbene (CH2). Draw pictures of all 6 orbitals b. Now bend the carbene to a bond angle of about 120°. How does this change your MO diagram? Draw pictures of all 6 orbitals. c. Now bring two of these carbene molecules together to make ethylene. Draw pictures of all 12 orbitals.Consider the compound in Figure 3. Which types of orbitals overlap to make the bond indicated in red? * A- sp³ – sp³ B- sp² – sp² C- sp³ – sp² D- sp² – sp³ E- None of these options is correct
- he structure of 1,2-propadiene (allene) is shown to the right. Q.)State the orbital hybridization of each carbon.In a tabular format, enumerate 5 molecules where the following atoms are found in: O (sp3-hybridized) Oxygen (sp2-hybridized) Nitrogen (sp2-hybridized) Carbon (sp2-hybridized)Is the geometry of CH2BrCl, the same as CH3Cl and CH4? Briefly explain the evidence for your answer