Open AccessCovalence of atoms in the heavier transition metals
Author(s) -
Linus Pauling
Publication year - 1977
Publication title -
proceedings of the national academy of sciences of the united states of america
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.74.7.2614
Subject(s) - covalent bond , transition metal , metal , valence electron , atomic physics , valence (chemistry) , electron , chemistry , interatomic potential , materials science , chemical physics , computational chemistry , physics , metallurgy , molecular dynamics , biochemistry , organic chemistry , quantum mechanics , catalysis
The observed magnetic properties of the heavier transition metals permit them to have larger metallic valences than their iron-group congeners. With 0.72 metallic orbital, as found for the iron-group metals, the maximum metallic valence and minimum interatomic distance would occur for 8.28 transargononic electrons. The curves of observed interatomic distances for the close-packed metals of the second and third long periods have minima at this point, supporting the assignment of high valences to these metals. Values of the single-bond radii corresponding to these valences are calculated.