

Dear Andreas,

I suggest you to check literature "Structure and Bonding. Vol.66 Electronegativity", ed. by K.D.Sen and C.K.Jorgensen, Springer-Verlag (1987). There are TABLEs of Group ENs. (p.165), Bondlength's versus EN diference (p.169), Proton affinities versus EN of lone pairs (p.179), etc. Good luck!

Yoshiyuki Hase
Instituto de Quimica, Universidade Estadual de Campinas, Campinas, SP (Brasil)
e-mail: [email-masked]

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