5. Below are three representations of the molecular orbitals of a diatomic molecule. Which of the molecular orbitals is...
4. On the basis of molecular orbitals and molecular orbital diagrams, predict which molecule in each series will have the longest bond. Be sure to provide a brief explanation a. B2, B2 b. 02*, 0,- c. HHe", Hz 5. Consider the hydroxide ion, OH and do the following: a. Prepare a molecular orbital diagram and fill with electrons given the following atomic orbital potential energies: O(2s) = -32.3 eV, O(2p) = -15.8 eV, H(s) -13.6 eV. Be sure to label...
2. Molecular orbitals of homonulcear diatomic molecule. a. Sketch the molecular orbital energy dia molecular orbitals b. Calculate the bond order of C2 c. Does the molecule exist? (You can search information about this molecule)
4. The planar molecule SO3 shown below has Dzh symmetry. Oos- a) Determine the irreducible representations of the oxygen o orbital combinations. b) Construct a qualitative MO diagram for SO3 using the oxygen o orbitals and the 3s and 3p valence orbitals on the sulphur. c) Which sulphur orbital is not involved in o bonding with the oxygens? d) Determine the irreducible representations of the six oxygen a orbital combinations. e) Which d orbitals on sulphur can undergo i bonding...
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5. According to molecular orbital theory, what type of bonding orbitals exists for diatomie hydrogen? a. A sigma bonding orbital and a sigma antibonding orbital b. Two sigma bonding orbitals C. A sigma bonding and a pi bonding orbital d. A sigma orbital and a pi antibonding orbital
2. According to molecular orbital theory, how many molecular orbitals of benzene are bonding. antibonding and nonbonding? A. Two bonding, two antibonding and two nonbonding B. Three bonding, two antibonding and one nonbonding C. Three bonding, three antibonding and cro nonbonding D. Two bonding, zero antibonding and four nonbonding E Six bonding, zero antibonding and zero nonbonding 3. Which one of the following is aromatic? A. II B. III C. IV D. I E. None
If the two atomic orbitals represented below combine in phase in the orientation shown, which of the following statements is true? Removing an electron from the resulting orbital will increase bond order. The molecular orbital that results will have pi symmetry. The molecular orbital that results will have sigma symmetry. The molecular orbital that results will be an antibonding orbital. Removing an electron from the resulting orbital will decrease bond order. The molecular orbital that results will be a bonding orbital.
Sigma Bonding As bond arises from the straight-on overlap of two atomic orbitals. The electron density lies along the axis of the two bonded nuclei. p ridorbital Example: Sigma Bonding in methane, CHA 11 orbital What atomic or hybrid orbital on O makes up the sigma bond between 0 and H in water, H,0? orbital on O What is the approximate H-O-H bond angle? ant values if needed for this question Sigma Bonding Ac bond arises from the straight-on overlap...
Molecular orbitals. Consider the following diatomic molecules: H2*, H2, Li2, N2, O2. For each molecule, (A) determine the number of electrons N; (B) give the index i of the HOMO (1 is lowest energy orbital, 2 is next one up, etc); (C) sketch the shape of the HOMO, indicating the signs of the lobes; (D) indicate the symmetry of the HOMO (o, T, 6)
Molecular orbitals. Consider the following diatomic molecules: H2*, H2, Li2, N2, O2. For each molecule, (A)...
Which of the molecular orbitals below is the HOMO for the diatomic molecule N2–? The default font in Moodle does not display lower case Greek letters well. The symbol that looks like this (π) is pi (). Select one: π2p* π2p σ2p* σ2s* σ2p σ2s
Which of the molecular orbitals below is the LUMO for the diatomic molecule N2+? The default font in Moodle does not display lower case Greek letters well. The symbol that looks like this (π) is pi (). Select one: σ2p* σ2s* π2p π2p* σ2p σ2s