Coordination Chemistry of Protic Pincer-Type Bis(pyrazolyl)pyridines and Related Compounds
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- Kuwata Shigeki
- School of Materials and Chemical Technology, Tokyo Institute of Technology
Bibliographic Information
- Other Title
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- プロティックなピンサー型ビス( ピラゾリル) ピリジンおよび類縁体の配位化学
- プロティック ナ ピンサーカタ ビス(ピラゾリル)ピリジン オヨビ ルイエンタイ ノ ハイイ カガク
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Abstract
<p>Proton-responsive pincer-type ligands have been used as scaffolds to realize metal–ligand cooperative transformations. Unlike most of the ligands therein, 2,6-bis(pyrazol-3-yl)pyridines (3-bpp) ensure that two protic groups point to the remaining coordination site in the pincer plane. This article reviews the coordination chemistry of 3-bpp and related tridentate ligands with emphasis on the characteristics originating from the Brønsted acidity of the peripheral NH groups. Synthesis of 3-bpp complexes, which often associated with spontaneous deprotonation of the 3-bpp ligand and aggregation of the complex to give supramolecular structures, is first described. Deprotonation of the 3-bpp complexes along with the following reactivities is then discussed. Application of the 3-bpp complexes to catalytic reactions as well as materials exhibiting spin-crossover and fluorescence is also described. Finally, pincer-type complexes bearing protic N-heterocyclic carbene side arms are briefly mentioned as relevant molecules.</p>
Journal
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- Bulletin of Japan Society of Coordination Chemistry
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Bulletin of Japan Society of Coordination Chemistry 76 (0), 21-30, 2020-11-30
Japan Society of Coordination Chemistry
