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- W17738488 abstract "In an effort to develop coordinatively unsaturated, electron-rich metal complexes, that have proven to be powerful species for small molecule activation [1], a new derivative of the tripodal NHC ligand family TIMENR (tris-[2-(3-aryl-imidazol-2-ylidene)ethyl]amine, with R = aryl) was synthesized. Due to their ?- donor and ?- accepting properties [2, 3], N-heterocyclic carbene (NHC) ligands are exceedingly suitable for the synthesis of a variety of low to high-valent metal complexes; thus, perfectly suitable to act as supporting ligands for small molecule activation at reactive coordination complexes [4]. The steric demand of the NHC ligands is highly adjustable, and often, the ligands can be conveniently synthesized. Slight changes in the steric demand of the bulky ligand periphery can be used to tune the reactivity of the resulting transition metal complexes. The anchoring unit of polydentate NHC systems provides the chelators with additional electronic and structural flexibility. It could be shown that sterically protecting tripodal ligands of TIMENR (with R = aryl = 2,6-xylyl (xyl), mesityl (mes)) create a trigonal platform for metal ions that enables the coordination of an axial ligand in a protective cylindrical cavity, such as the nitrido ligand. The first X-ray crystal structure determination of a discrete iron nitride complex, [(TIMENR) Fe(N)]+, stabilized by the N-anchored tris(carbene) ligand TIMENR was accomplished [5]." @default.
- W17738488 created "2016-06-24" @default.
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- W17738488 date "2012-01-01" @default.
- W17738488 modified "2023-09-25" @default.
- W17738488 title "TIMEN3,5CF3:Hybrid System Capable of Cyclometallation and Nitride Insertion" @default.
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- W17738488 doi "https://doi.org/10.1007/978-3-642-27254-7_4" @default.
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