Fixation of Dinitrogen at an Asymmetric Binuclear Titanium Complex
SCIE
SCOPUS
- Title
- Fixation of Dinitrogen at an Asymmetric Binuclear Titanium Complex
- Authors
- Bae, Dae Young; Lee, Gunhee; Lee, Eunsung
- Date Issued
- 2021-09
- Publisher
- AMER CHEMICAL SOC
- Abstract
- A new type of dititanium dinitrogen complex supported by a triphenolamine (TPA) ligand is reported. Analysis by single-crystal X-ray diffraction and Raman and NMR spectroscopy reveals different coordination geometries for the two titanium centers. Hence, coordination of TPA and a nitrogen ligand results in trigonal-bipyramidal geometry, while an octahedral titanium center is obtained upon additional coordination of an ethoxide generated upon C-O bond cleavage in a diethyl ether solvent molecule. The titanium complex successfully generates ammonia in the presence of an excess amount of PCy3HI and KC8 in 154% yield (per titanium atom). A titanium complex with a bulkier TPA does not form a dinitrogen complex, and mononuclear titanium dinitrogen complexes were not accessible, presumably because of the high tendency of early transition metals to form binuclear dinitrogen complexes.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/113071
- DOI
- 10.1021/acs.inorgchem.1c01050
- ISSN
- 0020-1669
- Article Type
- Article
- Citation
- INORGANIC CHEMISTRY, vol. 60, no. 17, page. 12813 - 12822, 2021-09
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