6. a) Consider the following diagram depicting the pi bond in ethene. It shows two p orbitals that are aligned in a parallel fashion so that they may engage in side-to-side overlap leading to a pi bond. This overlap is depicted on pages 25 (Figure 1.4) and 30 (Figure 1.11) of the textbook, but with a "magical sheet" between the two p orbitals. Which of the following statements would be reasonable for someone encountering this diagram for the first time? H, H & & H H ⚫ that's odd - the sigma bond in ethene (Figure 1.8 on page 28, Figure 1.9 on page 29) appears to form when the sp² orbitals of the two carbon atoms actually overlap, but the pi bond forms even when the p orbitals don't. ⚫ what is this magical sheet and where does it come from? ⚫ I don't think I'm getting the full story here. ⚫right from the start, organic chemistry doesn't make a lot of sense - I'm being asked to accept things that seem quite nonsensical. • I guess I had better just abandon trying to think about what's really going on and rely on my old friend memorization to get me through this accursed course. b) Pi bonding is real. What is wrong with the diagram above and the ones in the book? What should the diagram really look like?
6. a) Consider the following diagram depicting the pi bond in ethene. It shows two p orbitals that are aligned in a parallel fashion so that they may engage in side-to-side overlap leading to a pi bond. This overlap is depicted on pages 25 (Figure 1.4) and 30 (Figure 1.11) of the textbook, but with a "magical sheet" between the two p orbitals. Which of the following statements would be reasonable for someone encountering this diagram for the first time? H, H & & H H ⚫ that's odd - the sigma bond in ethene (Figure 1.8 on page 28, Figure 1.9 on page 29) appears to form when the sp² orbitals of the two carbon atoms actually overlap, but the pi bond forms even when the p orbitals don't. ⚫ what is this magical sheet and where does it come from? ⚫ I don't think I'm getting the full story here. ⚫right from the start, organic chemistry doesn't make a lot of sense - I'm being asked to accept things that seem quite nonsensical. • I guess I had better just abandon trying to think about what's really going on and rely on my old friend memorization to get me through this accursed course. b) Pi bonding is real. What is wrong with the diagram above and the ones in the book? What should the diagram really look like?
Chapter9: Covalent Bonding: Orbitals
Section: Chapter Questions
Problem 69AE
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