In the past decades, a large number of coordination compounds with highly organized structures, ranging from zero-dimensional supramolecular to three-dimensional polymeric structures, have been constructed from metal ions with different oxidation states in combination with organic and/or inorganic ligands with several coordination modes. The properties of these structures are largely dependent on building units in the structures, and in many cases, classical metal complex units such as cyano and carboxylato complexes and their analogues have been used as building units to construct highly organized structures. In this context, the creation of mononuclear and multinuclear complexes with novel structures and properties, which are potentially available as building units, is greatly desirable for the dramatic development of coordination chemistry. In particular, discrete coordination systems that can respond to various external stimuli, such as redox, pH, ionic strength, temperature, and light, are very attractive because the responses lead not only to the conversion of their structures and electric states but also to the change of various properties, such as redox, magnetism, color, luminescence, and catalysis. This symposium will focus on the creation of discrete coordination systems that show such attractive switchable structures and properties. |
