hw7f08 - d a sp hybridized orbital on the C and a 2p...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
HW Set #7 Due 11/18/08 (at the beginning of class) Work the following problems in chapter 6 10, 18, 30, 34 (use the MO diagram in figure 6.28), 52, 56, Chapter 7 14, 50 More problems The Born Openheimer approximation assumes that the electrons move much faster than the nuclei. This lets us assume the wavefunctions for the electrons in the molecule a) are independent of the position of the nuclei. b) depend only on the positions of the nuclei. c) are the same as the wavefunctions for the nuclei. d) the product of one electron wavefunctions. e) always even with regard to inversion symmetry. If you excited the electron in H 2 + from the 1 σ g state to the 1 σ u * what would expect to happen to the molecule? Which of the following has the highest bond order O 2 , O 2 + , N 2 , N 2 + ? In the molecule, H " C # N , the VB model would describe the sigma bond between the C and the N as a combination of a) 2p orbital on the C and a 2p orbital on the N. b) 2p orbital on the C and a 2s orbital on the N. c)
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: d) a sp hybridized orbital on the C and a 2p orbital on the N. e) a sp 3 hybridized orbital on the C and a 2p orbital on the N. The molecule naphthalene is shown below. How would you describe the bonding in naphthalene using a mix of VB and MO? a) 12 C-C σ bonds (sp 2-sp 2 ), 12 C-H σ bonds (sp 2-1s), 6 π MO’s b) 12 C-C σ bonds (sp 2-sp 2 ), 10 C-H σ bonds (sp 2-1s), 6 π MO’s c) 11 C-C σ bonds (sp 2-sp 2 ), 11 C-H σ bonds (sp 2-1s), 5.5 π MO’s d) 11 C-C σ bonds (sp 2-sp 2 ), 8 C-H σ bonds (sp 2-1s), 5 π MO’s e) 10 C-C σ bonds (sp 2-sp 2 ), 10 C-H σ bonds (sp 2-1s), 5 π MO’s Why is there an energetic barrier to rotation of a C=C bond? a) The trans isomer is more stable than the cis isomer. b) Rotation breaks the σ C-C bond. c) Rotation breaks the π C-C bond. d) Repulsion between the groups bonded to the carbon atoms. e) There is no energy barrier to rotation of this bond....
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern