Unexpected reactivity resulting from modifications of the ligand periphery: Synthesis, structure, and spectroscopic properties of iron complexes of new tripodal N- …

CS Vogel, FW Heinemann, MM Khusniyarov…

Index: Vogel, Carola S.; Heinemann, Frank W.; Khusniyarov, Marat M.; Meyer, Karsten Inorganica Chimica Acta, 2010 , vol. 364, # 1 p. 226 - 237

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Citation Number: 18

Abstract

The chelating ligand tris-[2-(3-aryl-imidazol-2-ylidene) ethyl] amine (TIMENR, R= aryl= 2, 6- xylyl (xyl), mesityl (mes)) has provided access to reactive transition metal complexes. Here, two new tripodal N-heterocyclic carbene ligands of the TIMENR system (R= aryl= tolyl (tol), 3, 5-xylyl (3, 5xyl)), featuring sterically less demanding aryl substituents were synthesized. With these ligands, Fe (II) precursor complexes could be obtained, namely [(TIMENtol) Fe] ...