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The Formazanate Ligand as an Electron Reservoir: Bis(Formazanate) Zinc Complexes Isolated in Three Redox States.
- Source :
-
Angewandte Chemie . Apr2014, Vol. 126 Issue 16, p4202-4206. 5p. - Publication Year :
- 2014
-
Abstract
- The synthesis of bis(formazanate) zinc complexes is described. These complexes have well-behaved redox-chemistry, with the ligands functioning as a reversible electron reservoir. This allows the synthesis of bis(formazanate) zinc compounds in three redox states in which the formazanate ligands are reduced to 'metallaverdazyl' radicals. The stability of these ligand-based radicals is a result of the delocalization of the unpaired electron over four nitrogen atoms in the ligand backbone. The neutral, anionic, and dianionic compounds (L2Zn0/−1/−2) were fully characterized by single-crystal X-ray crystallography, spectroscopic methods, and DFT calculations. In these complexes, the structural features of the formazanate ligands are very similar to well-known β-diketiminates, but the nitrogen-rich (NNCNN) backbone of formazanates opens the door to redox-chemistry that is otherwise not easily accessible. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LIGANDS (Chemistry)
*ELECTRONS
*X-rays
*ZINC
*NITROGEN
Subjects
Details
- Language :
- English
- ISSN :
- 00448249
- Volume :
- 126
- Issue :
- 16
- Database :
- Academic Search Index
- Journal :
- Angewandte Chemie
- Publication Type :
- Academic Journal
- Accession number :
- 95563967
- Full Text :
- https://doi.org/10.1002/ange.201309948