None Draw a fully-labelled MO energy - level diagram of SF6. How does the MOT account for hypervalency in SF6?

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Answered: Draw a fully-labelled MO energy - level…

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter9: Covalent Bonding: Orbitals

Section: Chapter Questions

Problem 2ALQ: Explain the difference between the and MOs for homonuclear diatomic molecules. How are bonding and...

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Similar questions

On one-electron oxidation of a five valence electron AH₂ compound (C₂, point group) to a closed shell (no unpaired electrons) four valence electron C₂, cationic species, what is the symmetry of the highest energy occupied molecular orbital, and what happens to the energy of this orbital when the four valence electron AH2 C2y cation changes to a Doch geometry? O 2a₁ and stabilised (decreases in energy) O 2a₁ and destabilised (increases in energy) O 1b2 and stabilised (decreases in energy) O b₁ and no change in energy
Which of the following molecules and ions have a bond order of ½: H2, H2 + , H2 – , and He2 2+? Please Sketch the MO diagrams to prove your answer.
Give the appropriate label (i.e. 01s*) for the molecular orbital for the homonuclear diatomic molecule C₂ shown to the right. Explain how you determined that this orbital is either bonding or anti-bonding, and either a sigma orbital or a pi orbital.
Sketch the molecular orbital diagrams for B2 snd for F2. Using these diagrams, provide the bond order for each of the molecules and state if they are diamagnetic or paramagnetic. Describe the effect on the bond order and on the magnetic properties when B2 and F2 are reduced by 1 electron. Describe the effect on the bond order and on the magnetic properties when B2 and F2 are reduced by 2 electrons.
Suppose that a linear Na26 molecule could be formed by combining the 3s orbitals on each atom into delocalized MOs. How many nodal planes are in the highest occupied molecular orbital (HOMO) of this molecule?
Using your knowledge of M.O. theory, please construct a molecular orbital diagram for the C-CI bond in chloromethane. You should use an sp3 orbital from carbon and all 4 sp orbitals from chlorine to do this. * please indicate the identity of the highest occupied melecular erbitals (HOMO) and lowest unoccupied molecular orbital (LUMO).
practice q 9 9. For each of the following reactions, assign with a check in the box which of these components A or B represents the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO). Once assigned, determine their type of orbitals. i- ii- e Nu 1 A A e RC- B B HOMO LUMO HOMO LUMO A B A B Type of orbital Type of orbital
5. Use molecular orbital theory to rationalize if a C=O or C=N is more electrophilic. To completely answer this question, you should perhaps construct an MO diagram for each situation and then provide a concise answer using 10 words or less.
Using a group theoretical approach, generate the MO diagrams for silane, SiH4. Be sure that your diagram is fully-labeled with MO assignments, is properly scaled in energy space, and provide a sketch of the MO. Determine the bond order for the silane molecule, and for the Si-H bond.
Build a molecular orbital diagram for PCl3. There are 6 degenerate orbitals at 3px and 3pz for Cl3
8. What is the expression for the electron probability density halfway between the two hydrogen nuclei for an electron in the first bonding molecular orbital compared to one in the first antibonding molecular orbital. You may use the LCAO approximation for the molecular orbitals. Do not evaluate overlap, exchange, or coulomb integrals if required.
Calcium carbide (CaC2) is an intermediate in the manufac- turing of acetylene (C,H2). It is the calcium salt of the carbide (also called acetylide) ion (C-). What is the elec- tron configuration of this molecular ion? What is its bond order?

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