New lanthanide-nitrogen bond-valence parameters
Agata Trzesowska1, Rafal Kruszynski, Tadeusz J Bartczak
1Department of X-ray Crystallography and Crystal Chemistry, Institute of General and Ecological Chemistry, Technical University of Łodz, Zeromskiego 116, 90-924 Łodz, Poland. agata@p.lodz.pl
Abstract:
The bond-valence parameters (R(ij)), which connect bond valences and bond lengths, have been computed for lanthanide-nitrogen bonds. It has been found that values of bond-valence parameters decrease with increasing lanthanide atomic number in coordination compounds, and that they are smaller than the R(ij) parameters of inorganic compounds. As expected, the lanthanide-nitrogen bond-valence parameters are larger than lanthanide-oxygen bond-valence parameters. There are no obvious dependencies between the number of N atoms in the coordination sphere and the bond-valence parameter value.
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