Chem241a_Lecture_4

Chem241a_Lecture_4 - Organic Chemistry 241a Prof. Bogdan...

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Or ganic Chemistry 241a Prof. Bogdan Olenyuk Contact Information Office: Old Chemistry 309 olenyuk@email.arizona.edu Phone: (520) 626-0754 Course web site: http://www.chem.arizona.edu/courseweb/074/CHEM241A1_2/FrameSet.html
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Chapter 1: Structure and Bonding sp 2 Hybrid Orbitals and the Structure of Ethylene (Ethene) • Acetylene and sp Hybrid Orbitals • Hybridization of Nitrogen and Oxygen • Molecular Orbital Theory • Drawing Structures of Organic Compounds Today we will cover: Reading Assignment: McMurry (the BOOK), Ch. 1.8 – 1.12
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sp 2 Hybrid Orbitals and the Structure of Ethylene sp 2 hybrid orbitals: 2 s orbital combines with two 2 p orbitals, giving 3 orbitals (spp = sp2). This results in a double bond. sp 2 orbitals are in a plane with120° angles • Remaining p orbital is perpendicular to the plane
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sp 2 Hybrid Orbitals and the Bonds They Form •T w o sp 2 -hybridized orbitals overlap to form a σ bond p orbitals overlap side-to-side to form a pi ( π ) bond sp 2 –s p 2 σ bond and 2p–2p
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Chem241a_Lecture_4 - Organic Chemistry 241a Prof. Bogdan...

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