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Mass spectrometric determination of dissociation energies of molecules Bi2, Bi3, Bi4 and BiPb

par Rovner, L.;Drowart, Annie ;Drowart, Jean
Référence Transactions of the Faraday Society, 63, page (2906-2912)
Publication Publié, 1967

Article révisé par les pairs

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Résumé :

The vaporization of pure bismuth and of a 1 : 1 Bi+Pb alloy were studied. Above pure bismuth the species Bi, Bi2, Bi3 and Bi 4 were observed in the approximate ratios 0.6 :1.0 : 0.002 : 0.02. The atomization energies per bonding atom were calculated from partial pressure measurements to be 47.0, 43.0 and 47.0 kcal/mole for Bi2, Bi 3 and Bi4 respectively. The molecule BiPb was identified and its dissociation energy determined to be D°0(BiPb) = 33.0 kcal/mole.