Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52476#.VJoRLcCAM4 Author(s) Salvatore Esposito 1 , Adele Naddeo 2 Affiliation(s) 1 I.N.F.N., Sezione di Napoli, Naples, Italy . 2 Dipartimento di Fisica “E. R. Caianiello”, Università di Salerno and CNISM-Unità di Ricerca di Salerno, Salerno, Italy . ABSTRACT An historical overview is given of the relevant steps that allowed the genesis of the quantum theory of the chemical bond, starting from the appearance of the new quantum mechanics and following later developments till approximately 1931. General ideas and some important details are discussed concerning molecular spectroscopy, as well as quantum computations for simple molecu...
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