Lecture10 - Lecture 10 Molecular Diatomics p 202 The Molecular Orbital Description Molecular of Chemical Reactions Fig 6-CO p 211 p 255 World

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Unformatted text preview: Lecture 10: Molecular OrbitalsHeteronuclear Diatomics p. 202 The Molecular Orbital Description Molecular of Chemical Reactions Fig. 6-CO, p. 211 p. 255 World Record Strongest Homonuclear Chemical Bond: N2 Bond Energy = 942 kJ/mol Bond Length = 1.10 A0 Fig. 6-16, p. 236 p. 255 p. 235 Cowboy Chemistry The Study of Vigorous Chemical Reactions Liquid Oxygen Fig. 6-17a, p. 237 Liquid Nitrogen Fig. 6-17b, p. 237 Free Radicals -Unpaired electrons -Paramagnetic 2 ChemQuiz© 17.2 2 For the formation of O from O For the formation of atoms the total paramagnetism of the sample... 2 O + O O 1) increases 2) ~same 3) decreases N S ChemQuiz© 17.2 Solution O 4 2 O 4 O 2 2 2 2 2p 2p 1s 2s 1) increases 2) ~same 3) decreases 1s 2s ChemQuiz© 17.4 Which process involving a photon is responsible 2 2 for the conversion of O triplet to O singlet ? 2 2 paramagnetic O (triplet) diamagnetic O (singlet) 1) absorption 2) emission 3) ionization 1) ChemQuiz© 17.4 Solution O2 O2 antiparallel spins: higher energy 2 2 magnetic O (triplet) non magnetic O (singlet) 1) absorption 2) emission 3) ionization 1) Free Radicals -Unpaired electrons -Paramagnetic -Highly reactive!! 2 World Record Strongest Chemical Bond: CO Bond Energy = 1076 kJ/mol Bond Length = 1.13 A0 BLACKBOARD C EN=2.56 x x O EN=3.44 Fig. 6-19, p. 239 CN, NF ?? H:F Fig. 6-20, p. 240 This lecture is Terminated!!! Have a WILD WEEKEND!!!!! ...
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This note was uploaded on 09/29/2009 for the course CHEM 4a taught by Professor Gordon during the Fall '06 term at University of California, Berkeley.

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