TermSymb

TermSymb - 3 1 1 3 3 3 3 1 Σ Σ Σ O P O D O P O P u g g g ∆ 3 u Σ-2 4 6 8 eV E(cm-1 Configuration diagrams are schematic No single diagram can

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Term Symbols and Molecular Spectroscopy Atomic Term Symbols - Oxygen L 0 1 2 3 Term S P D F ground state: (1s) 2 (2s) 2 (2p) 4 ↑↓ ↑↓ L = M L,max = +1+1+ 0 -1 = 1 3 P +1 0 -1 excited states: (1s) 2 (2s) 2 (2p) 4 ↑↓ ↑↓ ↑↓ L = M L,max = +1+1+ 0 +0 = 2 1 D +1 0 -1 and 1 S Homonuclear Diatomics* – O 2 ground state: KK ( σ g,2s ) 2 ( σ * u,2s ) 2 ( σ g,2pz ) 2 ( π u,2p ) 4 ( π * g,2p ) 2 Λ = +1+1-1-1+1-1 = 0 Λ = +1+1-1-1+1+1 = 2 Λ = +1+1-1-1+1-1 = 0 3 Σ - g 1 g 1 Σ + g …( σ g,2pz ) 2 ( π u,2p ) 3 ( π * g,2p ) 3 …( σ g,2pz ) 1 ( π u,2p ) 4 ( π * g,2p ) 3 Λ = +1+1-1+1-1-1 = 0 Λ = +1+1-1+1+1-1 = 2 ? ? 3 Σ + u + 3 Σ - u + 3 u 0 10000 20000 30000 40000 50000 60000 70000 0.5 1 1.5 2 2.5 3 3.5 4 R (Å)
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Unformatted text preview: 3 1 1 3 3 3 3 1 Σ Σ Σ O( P) + O( D) O( P) + O( P) u g g g ∆ 3 u Σ-+-+----2 4 6 8 eV E (cm )-1 * Configuration diagrams are schematic. No single diagram can represent an open shell system. These diagrams do not take into account electron indistinguishability and orbital degeneracy. ↑↓ ↑ ↑ ↑↓ ↑↓ ↑↓ ↑ ↓ ↑↓ ↑↓ ↑↓ ↑ ↑ ↑↓ ↑↓ ↑↓ ↑ ↑ ↑↓ ↑↓ ↑↓ ↑ ↑ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑ ↓ ↑↓ ↑↓ u g u g...
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This document was uploaded on 02/22/2012.

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