Figure 1
Typical coordinations of the carboxylate group in mononuclear sites: (a) bidentate coordination with both O atoms interacting with the metal ion at comparable distances, (b) monodentate coordination by OX1, with OX2 in a syn orientation with respect to the metal ion, and (c) monodentate coordination by OX1, with OX2 in an anti orientation. For simplicity, we always label the O atom closer to the metal as OX1. |