TY - JOUR
T1 - Ruthenium Nitrosyl Complexes of Bis (3, 5‐dimethylpyrazol‐1‐yl) methane Oxyanions
AU - Suardiaz, Reynier
AU - Ortiz, Mayreli
AU - Díaz, Alicia
AU - Cao, Roberto
AU - Otero, Antonio
AU - Antinolo, Antonio
AU - Fernández‐Baeza, Juan
PY - 2004/8/1
Y1 - 2004/8/1
N2 - New ruthenium(II) mononitrosyl complexes of general composition [Ru(NO)LCl2], [Ru(NO)L(en)]Cl2 and [Ru(NO)L2]Cl have been obtained upon treating Ru(NO)Cl3 with potential κ3-N,N,O ligands bis(3,5-dimethylpyrazol-1-yl)methanesulfonate (bdmpzsa) and bis(3,5-dimethylpyrazol-1-yl)acetate (bdmpza) in 1:1 and 1:2 molar ratios. These mononitrosyl complexes have a sharp, intense νNO band in the IR spectra within 1874−1851 cm−1, indicating a linear Ru−NO+ coordination. For both [Ru(NO)L2]Cl compounds, a dynamic switch on-off process occurs between the oxyanionic moieties on the apical position trans to NO+ and the pyrazolic ligands on the equatorial plane. A dynamic 1H NMR experiment of this process gave ΔG#= 46−48 kJ·mol−1 at 218−228 K for the acetate derivative.
AB - New ruthenium(II) mononitrosyl complexes of general composition [Ru(NO)LCl2], [Ru(NO)L(en)]Cl2 and [Ru(NO)L2]Cl have been obtained upon treating Ru(NO)Cl3 with potential κ3-N,N,O ligands bis(3,5-dimethylpyrazol-1-yl)methanesulfonate (bdmpzsa) and bis(3,5-dimethylpyrazol-1-yl)acetate (bdmpza) in 1:1 and 1:2 molar ratios. These mononitrosyl complexes have a sharp, intense νNO band in the IR spectra within 1874−1851 cm−1, indicating a linear Ru−NO+ coordination. For both [Ru(NO)L2]Cl compounds, a dynamic switch on-off process occurs between the oxyanionic moieties on the apical position trans to NO+ and the pyrazolic ligands on the equatorial plane. A dynamic 1H NMR experiment of this process gave ΔG#= 46−48 kJ·mol−1 at 218−228 K for the acetate derivative.
M3 - Article
SN - 1434-1948
VL - 2004
SP - 3353
EP - 3357
JO - EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
JF - EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
IS - 16
ER -