scholarly journals Synthesis of Ruthenium Boryl Analogues of the Shvo Metal−Ligand Bifunctional Catalyst

2010 ◽  
Vol 29 (17) ◽  
pp. 3896-3900 ◽  
Author(s):  
Liza Koren-Selfridge ◽  
Ian P. Query ◽  
Joel A. Hanson ◽  
Nicholas A. Isley ◽  
Ilia A. Guzei ◽  
...  
Keyword(s):  
Bifunctional Catalyst ◽  
Metal Ligand

Mild and Chemoselective Synthesis of Lactones from Diols Using a Novel Metal−Ligand Bifunctional Catalyst

2002 ◽  
Vol 4 (14) ◽  
pp. 2361-2363 ◽  
Author(s):  
Takeyuki Suzuki ◽  
Kenji Morita ◽  
Mika Tsuchida ◽  
Kunio Hiroi
Keyword(s):  
Bifunctional Catalyst ◽  
Chemoselective Synthesis ◽  
Metal Ligand

Ambient-pressure hydrogenation of ketones and aldehydes by a metal-ligand bifunctional catalyst [Cp*Ir(2,2′-bpyO)(H2O)] without using base

Tetrahedron ◽  
2019 ◽  
Vol 75 (34) ◽  
pp. 130463
Author(s):  
Rongzhou Wang ◽  
Jipeng Qi ◽  
Yuancheng Yue ◽  
Zhe Lian ◽  
Haibin Xiao ◽  
...  
Keyword(s):  
Ambient Pressure ◽  
Bifunctional Catalyst ◽  
Metal Ligand

ChemInform Abstract: Mild and Chemoselective Synthesis of Lactones from Diols Using a Novel Metal-Ligand Bifunctional Catalyst.

ChemInform ◽  
2010 ◽  
Vol 33 (48) ◽  
pp. no-no
Author(s):  
Takeyuki Suzuki ◽  
Kenji Morita ◽  
Mika Tsuchida ◽  
Kunio Hiroi
Keyword(s):  
Bifunctional Catalyst ◽  
Chemoselective Synthesis ◽  
Metal Ligand

ESTIMATING THE STABILITY OF METAL–LIGAND BONDING IN CARBOXYL-CONTAINING POLYMER COMPLEXES BY IR SPECTROSCOPY

2020 ◽  
Vol 61 (12) ◽  
pp. 1876-1887
Author(s):  
T. V. Berestova ◽  
K. N. Nosenko ◽  
O. V. Lusina ◽  
L. G. Kuzina ◽  
E. I. Kulish ◽  
...  
Keyword(s):  
Ir Spectroscopy ◽  
Polymer Complexes ◽  
The Stability ◽  
Metal Ligand

A Solvent-Dependent and Electrochemically Controlled Self-Assembling/Disassembling System

2003 ◽  
Vol 68 (9) ◽  
pp. 1647-1662 ◽  
Author(s):  
Valeria Amendola ◽  
Massimo Boiocchi ◽  
Yuri Diaz Fernandez ◽  
Carlo Mangano ◽  
Piersandro Pallavicini
Keyword(s):  
Equilibrium Mixture ◽  
Bidentate Ligand ◽  
Molecular Structures ◽  
The Self ◽  
Molar Ratio ◽  
Crystal And Molecular Structures ◽  
Self Assembling ◽  
Irreversible Oxidation ◽  
Irreversible Reduction ◽  
Metal Ligand

The bis-bidentate ligand R,S-1,2-diphenyl-N,N'-bis(2-quinolinemethylidene)ethane-1,2-diamine (ligand 4), containing two (iminomethyl)quinoline moieties separated by a cis-1,2-diphenylethylene spacer, forms stable complexes with both CuI and CuII. With CuII, the monomeric 1:1 complex [CuII(4)]2+ is obtained both in CH3CN and CH2Cl2. With CuI and overall 1:1 metal/ligand molar ratio, an equilibrium mixture is obtained in CH3CN, consisting of [CuI(4)2]+, [CuI2(4)2]2+ and [CuI2(4)(CH3CN)4]2+. The preponderant species is the two-metal one-ligand "open" complex [CuI2(4)(CH3CN)4]2+, in which each Cu+ cation is coordinated in a tetrahedral fashion by one (iminomethyl)quinoline unit and by two CH3CN molecules. Precipitation from the equilibrium mixture yields only crystals of [CuI2(4)(CH3CN)4](ClO4)2·2CH3CN, whose crystal and molecular structures have been determined. On the other hand, in the poorly coordinating CH2Cl2 solvent, only the dimeric helical [CuI2(4)2]2+ complex is obtained, when the overall metal/ligand 1:1 molar ratio is chosen. Addition of large quantities of acetonitrile to solutions of [CuI2(4)2]2+ in dichlorometane results in the formation of [CuI2(4)(CH3CN)4]2+, i.e. in the solvent-driven disassembling of the CuI helicate. While electrochemistry in CH3CN is poorly defined due to the presence of more than one CuI species, cyclic voltammetry experiments carried out in CH2Cl2 revealed a well defined behavior, with irreversible oxidation of [CuI2(4)2]2+ and irreversible reduction of [CuII(4)]2+ taking place at separate potentials (∆E ≈ 700 mV). Irreversibility and separation of the redox events are due to the self-assembling and disassembling processes following the reduction and oxidation, respectively.

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