Covalent Bonding of Phosphonates of Fullerene and Ru Complexes to γ-Zirconium Phosphate as a Template for Building Chemical Devices in the Solid State

2003 ◽  
Vol 15 (6) ◽  
pp. 1232-1234 ◽  
Author(s):  
Ernesto Brunet ◽  
Marina Alonso ◽  
María José de la Mata ◽  
Sylvie Fernández ◽  
Olga Juanes ◽  
...  
Keyword(s):  
Solid State ◽  
Zirconium Phosphate ◽  
Covalent Bonding ◽  
Ru Complexes

Ruthenium(II) Complexes Bearing Thioether-Appended α- Iminopyridine Ligands: Arene Precursors Permit Access to K2-N,N and K3-N,N,S Complexes

2019 ◽  
Author(s):  
Victoria A. Ternes ◽  
Hannah A. Morgan ◽  
Austin P. Lanquist ◽  
Michael P. Murray ◽  
Bradley Wile
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Strong Field ◽  
Active Role ◽  
Binding Mode ◽  
Phenethyl Alcohol ◽  
Ru Complexes

Herein we report the preparation of a series of Ru(II) complexes featuring alpha-iminopyridine ligands bearing thioether functionality (NNS<sup>R</sup>, where R = Me, CH<sub>2</sub>Ph, Ph). Metallation using (<i>p</i> cymene)RuCl dimer permits access to (k<sup>2</sup>-N,N)Ru complexes in which the thioether moiety remains uncoordinated. In the presence of a strong field ligand such as acetonitrile or triphenylphosphine, the p-cymene moiety is displaced, and the ligand adopts a k<sup>3</sup>-N,N,S binding mode. These complexes are characterized using a combination of solution and solid state methods, including the crystal structure of [(NNS<sup>Me</sup>)Ru(NCMe)<sub>2</sub>Cl]Cl. The k<sup>2</sup>-N,N Ru(II) complexes are shown to serve as efficient precatalysts for the oxidation of sec-phenethyl alcohol at 5 mol% loadings, using a variety of external oxidants and solvents. The complex bearing an S-Ph donor was found to be the most active of those surveyed, suggesting that the thioether donor plays an active role in catalyst speciation for this transformation.

scholarly journals Structural proof of a [C–F–C]+ fluoronium cation

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Kurt F. Hoffmann ◽  
Anja Wiesner ◽  
Carsten Müller ◽  
Simon Steinhauer ◽  
Helmut Beckers ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Solid State ◽  
Vibrational Spectra ◽  
Spectroscopic Studies ◽  
Covalent Bonding ◽  
Model System ◽  
Crystallographic Analysis ◽  
Carbon Centers ◽  
Positively Charged

AbstractOrganic fluoronium ions can be described as positively charged molecules in which the most electronegative and least polarizable element fluorine engages in two partially covalent bonding interactions to two carbon centers. While recent solvolysis experiments and NMR spectroscopic studies on a metastable [C–F–C]+ fluoronium ion strongly support the divalent fluoronium structure over the alternative rapidly equilibrating classical carbocation, the model system has, to date, eluded crystallographic analysis to confirm this phenomenon in the solid state. Herein, we report the single crystal structure of a symmetrical [C–F–C]+ fluoronium cation. Besides its synthesis and crystallographic characterization as the [Sb2F11]− salt, vibrational spectra are discussed and a detailed analysis concerning the nature of the bonding situation in this fluoronium ion and its heavier halonium homologues is performed, which provides detailed insights on this molecular structure.

Covalent Bonding of Phosphonates ofL-Proline andL-Cysteine toγ-Zirconium Phosphate

2004 ◽  
Vol 2004 (14) ◽  
pp. 2956-2960 ◽  
Author(s):  
Kunlin Huang ◽  
Jihong Yu ◽  
Guangmei Wang ◽  
Yi Li ◽  
Ruren Xu
Keyword(s):  
Zirconium Phosphate ◽  
Covalent Bonding
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