
%0 Journal Article
%A Harcourt, RD 
%T Molecular orbital, increased valence, valence bond and non-pairing spatial orbital formulae for three-centre bonding
%J Australian Journal of Chemistry
%D 1969/02/01
%V 22
%N 2
%P 279-290
%K 
%R https://doi.org/10.1071/CH9690279
%U https://www.publish.csiro.au/paper/CH9690279 
%X The simple valence-bond and molecular orbital formulae for three-centre bonding involving four electrons and three atoms Y, A, and B are Y 4-B - Y-A 'P, and Y---A---B Increased-valence formulae that have been developed recently are Y-A . B and Y . A-B If Y and B are the same type of atom, and bond-orbitals are used as wave functions for Y-A and A-B bonds, then the near-equivalence of the molecular orbital and increased-valence wave functions is demonstrated. Bond-orders (or numbers) for these and Linnett's5s6 non-pairing spatial orbital formula Y . A . B are calculated. 
