3,3-Bis(3,5-dimethylpyrazol-1-yl)propionic acid: A tripodal N,N,O ligand for manganese and rhenium complexes – Syntheses and structures
摘要:
The tripodal N,N,O ligands 3,3-bis(3,5-dimethylpyrazol-1-yl)propionic acid (Hbdmpzp) (1) and 3,3- bis(pyrazol-1-yl)propionic acid (Hbpzp) (2) form the "missing link" between the well-known bis(pyrazol-1-yl) acetic acids and related ligands with a longer "carboxylate arm". To illustrate the reactivity of this ligand, manganese and rhenium complexes bearing the ligand bdmpzp are reported. The complexes are compared to related compounds bearing other tripod ligands such as bis(3,5-dimethylpyrazol-1-yl) acetate (bdmpza) and 3,3-bis(1-methylimidazol-2-yl) propionate (bmip). Spectroscopic and structural data are used as a basis for comparison, as well as DFT calculations. Both ligands 1 and 2 and the complexes fac-[Mn(bdmpzp)(CO)(3)] (3) and fac-[Re(bdmpzp)(CO)(3)] (4) were characterised by X-ray crystallography. (C) 2009 Elsevier B.V. All rights reserved.
3,3-Bis(3,5-dimethylpyrazol-1-yl)propionic acid: A tripodal N,N,O ligand for manganese and rhenium complexes – Syntheses and structures
摘要:
The tripodal N,N,O ligands 3,3-bis(3,5-dimethylpyrazol-1-yl)propionic acid (Hbdmpzp) (1) and 3,3- bis(pyrazol-1-yl)propionic acid (Hbpzp) (2) form the "missing link" between the well-known bis(pyrazol-1-yl) acetic acids and related ligands with a longer "carboxylate arm". To illustrate the reactivity of this ligand, manganese and rhenium complexes bearing the ligand bdmpzp are reported. The complexes are compared to related compounds bearing other tripod ligands such as bis(3,5-dimethylpyrazol-1-yl) acetate (bdmpza) and 3,3-bis(1-methylimidazol-2-yl) propionate (bmip). Spectroscopic and structural data are used as a basis for comparison, as well as DFT calculations. Both ligands 1 and 2 and the complexes fac-[Mn(bdmpzp)(CO)(3)] (3) and fac-[Re(bdmpzp)(CO)(3)] (4) were characterised by X-ray crystallography. (C) 2009 Elsevier B.V. All rights reserved.
3,3-Bis(3,5-dimethylpyrazol-1-yl)propionic acid: A tripodal N,N,O ligand for manganese and rhenium complexes – Syntheses and structures
作者:Liv Peters、Eike Hübner、Thomas Haas、Frank W. Heinemann、Nicolai Burzlaff
DOI:10.1016/j.jorganchem.2009.03.037
日期:2009.7
The tripodal N,N,O ligands 3,3-bis(3,5-dimethylpyrazol-1-yl)propionic acid (Hbdmpzp) (1) and 3,3- bis(pyrazol-1-yl)propionic acid (Hbpzp) (2) form the "missing link" between the well-known bis(pyrazol-1-yl) acetic acids and related ligands with a longer "carboxylate arm". To illustrate the reactivity of this ligand, manganese and rhenium complexes bearing the ligand bdmpzp are reported. The complexes are compared to related compounds bearing other tripod ligands such as bis(3,5-dimethylpyrazol-1-yl) acetate (bdmpza) and 3,3-bis(1-methylimidazol-2-yl) propionate (bmip). Spectroscopic and structural data are used as a basis for comparison, as well as DFT calculations. Both ligands 1 and 2 and the complexes fac-[Mn(bdmpzp)(CO)(3)] (3) and fac-[Re(bdmpzp)(CO)(3)] (4) were characterised by X-ray crystallography. (C) 2009 Elsevier B.V. All rights reserved.