Hw9-G1-MolStruct-PDF

Hw9-G1-MolStruct-PDF - Exercise Set 9 MOLECULAR STRUCTURE...

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Exercise Set 9 MOLECULAR STRUCTURE CHM 2045 Hw9-G1-MolStruct-PDF.wpd Valence Bond Theory / Hybridization of Atomic Orbitals 1. a) Write the best Lewis structure for dichlorine oxide, Cl 2 O. b) How many sigma ( F ) bonds are present within the molecule? How many sigma ( F ) lone pairs are present on the oxygen atom? c) Assuming bonding with unhybridized atomic orbitals, predict the orbitals on each atom that overlap to form each F bond. Based only on the geometry of the atomic orbitals involved in bonding, what should be the bond angle in Cl 2 O ? d) Now deduce the type of hybridization anticipated for the oxygen atom in Cl 2 O and, based on hybridization arguments, predict the Cl-O-Cl bond angle. e) The observed Cl-O-Cl bond angle is 110.8 / . Is the oxygen atom in Cl 2 O therefore likely to be hybridized or unhybridized? Explain. 2. Why is it usually necessary to hybridize atomic orbitals when applying valence bond theory? That is, why are there so few molecules that can be described exclusively by the overlap of
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This note was uploaded on 11/16/2011 for the course CHM 2045 taught by Professor Mitchell during the Fall '07 term at University of Florida.

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Hw9-G1-MolStruct-PDF - Exercise Set 9 MOLECULAR STRUCTURE...

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