An isolated Ni( ii )-nitrosyl complex supported by the bulky tridentate 1,4,7-triisopropyl-1,4,7-triazacyclononane (iPr 3 TACN) ligand was obtained from the reaction of a Ni( ii ) dimethyl complex with NOPF 6 , suggesting the in situ formation of a Ni( i ) species that reacts with the resulting NO product. Use of a π-acceptor ancillary isocyanide ligand led to the isolation and characterization of an uncommon 5-coordinate Ni( i ) complex supported by the iPr 3 TACN ligand and tert -butylisocyanide.
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Organometallic Ni( ii ), Ni( iii ), and Ni( iv ) complexes relevant to carbon–carbon and carbon–oxygen bond formation reactions
Herein, the pyridinophanetetradentate ligand 3,6,9-trimethyl-3,6,9,15-tetraazabicyclo[9.3.1]pentadeca-1(15),11,13-triene, PyNMe 3 , is used to isolate and structurally characterize well-defined organometallic Ni( ii ) and Ni( iii ) complexes bearing the cycloneophyl fragment, an alkyl/aryl C-donor ligand. Furthermore, spectroscopic and cryo-mass spectrometry studies suggest the formation of a transient Ni( iv ) organometallic complex, and its relevance to C–C and C–O bond formation reactivity studies is discussed.
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- Award ID(s):
- 1925751
- PAR ID:
- 10389183
- Date Published:
- Journal Name:
- Inorganic Chemistry Frontiers
- Volume:
- 9
- Issue:
- 5
- ISSN:
- 2052-1553
- Page Range / eLocation ID:
- 1016 to 1022
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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