Ligand Association/Dissociation Paths and Ill‐Defined Coordination Numbers |
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Authors: | Antonio Ruiz‐Martínez David Casanova Santiago Alvarez Prof. Dr. |
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Affiliation: | 1. Departament de Química Inorgànica and Institut de Química Teòrica i Computacional (IQTC‐UB), Universitat de Barcelona, Martí i Franquès 1–11, 08028 Barcelona (Spain);2. Institut de Química Teòrica i Computacional (IQTC‐UB), Universitat de Barcelona, Martí i Franquès 1–11, 08028 Barcelona (Spain) |
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Abstract: | The continuous shape measures approach provides a means for handling the common situation in which a metal atom presents an ill‐defined coordination number. Those cases are characterized by the presence of secondary interactions to Lewis bases at distances significantly longer than those expected for a chemical bond. Systematic ways of analyzing ligand association/dissociation pathways that describe such structures and their application to a variety of specific cases are presented. The concepts and methodology presented here apply to molecules and extended solids as well and provide, when needed, a more flexible and precise stereochemical description of the metal coordination sphere than that of an integer coordination number and the associated polyhedral shape. |
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Keywords: | coordination compounds Jahn– Teller distortion ligand association shape measures transition metals |
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