Topic V Bonding II GPAK

Topic V Bonding II GPAK - Topic V - Bonding II Group...

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Topic V- Bonding II Group Problem Consider the homonuclear diatomic molecule C 2 , which is stable in the gas phase. a. Draw a Lewis structure for this molecule, determine the hybridization ofthe carbons, and then sketch a valence bond, localized electron picture ofthe a and Jt bonds for the molecule. Are there uncertainties with applying the valence bond picture to this molecule, e.g. unused orbitals vs. unpaired electrons, e~c? tl_a '- -. d ,' C =c. ~ SN' c -a(i ~J =i;) '5, na r. · 0- t) tI- <'YIl O,~,,, h 'fW'e.k.t 0. d'"C.",,) ~~ ba.~ c' s ..".J. ~ ".. ® eJI:7c, <a£) ~ MA ,f/t)" ' x.. l.. P I ~ ~ S, ', . t...~ ....... , ... f CI ., ~ : ",,- . 0,. . ~..l. . ","",0 I/W, .. TT b~.s ?! b. Now consider a molecular orbital approach to this same molecule. Given below is the MO energy level diagram appropriate for the valence electrons of this molecule. Show where the valence electrons go in the diagram in the usual way with up and down arrows (the x-axis is taken to be the internuclear axis). ___ a*(2Px)
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This note was uploaded on 12/05/2011 for the course CHEMISTRY 31 taught by Professor Roy during the Fall '09 term at Duke.

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Topic V Bonding II GPAK - Topic V - Bonding II Group...

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