Titlebook: Qualitative Valence-Bond Descriptions of Electron-Rich Molecules: Pauling “3-Electron Bonds” and “In; Pauling "3-Electron R. D. Harcourt T

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Transition Metal Complexes with CO, N2, NO and O2 Ligands, have triple bonds and no unpaired electrons in their Lewis octet structures (1)–(3). Each may use a lone-pair of electrons to coordinate with a transition metal, as in (4)–(6), thereby functioning initially as Lewis bases. NO and O., with 11 and 12 valence-shell electrons respectively, have one and

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,Some Electron-Excess σ Bonded Systems,ectrons into vacant bonding or antibonding orbitals. The atomic orbital overlaps which are appropriate for some of these derealizations are shown in Figs. 1-5 and 2-4. We shall now consider a few systems whose “increased-valence” structures may be constructed by delocalizing one or more lone-pair a

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Textbook 19821st editionmphasis given to the valence-bond approach. Electron-rich molecules form an extremely large class of molecules, and the results of quantum mechanical studies from different laboratories indicate that qualitative valence-bond descriptions for many of these molecules are incomplete in so far as they u

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