Bridging ligand planarity as a route to long-lived, near infrared emitting dinuclear ruthenium(ii) complexes

2006 ◽  
pp. 1301 ◽  
Author(s):  
Matthew I. J. Polson ◽  
Frédérique Loiseau ◽  
Sebastiano Campagna ◽  
Garry S. Hanan
Keyword(s):  
Near Infrared ◽  
Bridging Ligand ◽  
Dinuclear Ruthenium

Revisiting Dinuclear Ruthenium Water Oxidation Catalysts: Effect of Bridging Ligand Architecture on Catalytic Activity

2021 ◽  
Vol 60 (3) ◽  
pp. 1806-1813
Author(s):  
Husain N. Kagalwala ◽  
Mahesh S. Deshmukh ◽  
Elamparuthi Ramasamy ◽  
Neelima Nair ◽  
Rongwei Zhou ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Water Oxidation ◽  
Oxidation Catalysts ◽  
Bridging Ligand ◽  
Dinuclear Ruthenium

Modulation of Internuclear Communication in Multinuclear Ruthenium(II) Polypyridyl Complexes

2003 ◽  
Vol 68 (8) ◽  
pp. 1467-1487 ◽  
Author(s):  
Wesley R. Browne ◽  
Frances Weldon ◽  
Adrian Guckian ◽  
Johannes G. Vos
Keyword(s):  
Ground State ◽  
Weak Interactions ◽  
Electrochemical Studies ◽  
Protonation State ◽  
Ruthenium Polypyridyl ◽  
Bridging Ligands ◽  
Polypyridyl Complexes ◽  
Bridging Ligand ◽  
Dinuclear Ruthenium ◽  
Ruthenium Polypyridyl Complexes

The syntheses and characterisation of a series of mononuclear and dinuclear ruthenium polypyridyl complexes based on the bridging ligands 1,3-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl]benzene, 1,4-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl]benzene, 2,5-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl]thiophene, 2,5-bis-[5-pyrazinyl-1H-1,2,4-triazol-3-yl]thiophene are reported. Electrochemical studies indicate that in these systems, the ground state interaction is critically dependent on the nature of the bridging ligand and its protonation state, with strong and weak interactions being observed for thiophene- and phenylene-bridged complexes, respectively.

Dinuclear Ruthenium Complex Based on a π-Extended Bridging Ligand with Redox-Active Tetrathiafulvalene and 1,10-Phenanthroline Units

2016 ◽  
Vol 55 (9) ◽  
pp. 4606-4615 ◽  
Author(s):  
Bin Chen ◽  
Zhong-Peng Lv ◽  
Carol Hua ◽  
Chanel F. Leong ◽  
Floriana Tuna ◽  
...  
Keyword(s):  
Ruthenium Complex ◽  
Bridging Ligand ◽  
Redox Active ◽  
Dinuclear Ruthenium

Charge-transfer complexes of dinuclear ruthenium compounds/polyoxometalates for multistate electrochromism covering ultraviolet, visible, and near-infrared region

2017 ◽  
Vol 5 (26) ◽  
pp. 6442-6449 ◽  
Author(s):  
Dandan Chong ◽  
Xinhua Wan ◽  
Jie Zhang
Keyword(s):  
Charge Transfer ◽  
Near Infrared ◽  
Infrared Region ◽  
Charge Transfer Complexes ◽  
Ruthenium Compounds ◽  
Dinuclear Ruthenium ◽  
Near Infrared Region ◽  
Full Absorption

Novel charge-transfer electrostatic complexes between the anionic polyoxometalates and cationic dinuclear ruthenium compounds display the full absorption covering ultraviolet, visible, and near-infrared region.

Intervalence transfer in a new benzotriazolate bridged ruthenium-iron complex

2001 ◽  
Vol 79 (2) ◽  
pp. 145-156
Author(s):  
Reginaldo C Rocha ◽  
Henrique E Toma
Keyword(s):  
Near Infrared ◽  
Mixed Valence ◽  
Differential Pulse ◽  
Iron Complex ◽  
Electronic Coupling ◽  
Near Ir ◽  
Metal Metal ◽  
Dinuclear Ruthenium ◽  
Pulse Voltammetry ◽  
Transfer Properties

The unsymmetrical dinuclear ruthenium–iron complexes [(NH3)5Ru–bta–Fe(CN)5]n (where bta = benzotriazolate; n = –2, –1, 0) were prepared as solid sodium salts from [RuII(NH3)5(bta)]+ or [RuIII(NH3)5(bta)]2+ and [FeII(CN)5(H2O)]3– and characterized in aqueous solution by means of electrochemical and spectroelectrochemical methods. UV-vis, near-infrared, IR, and cyclic and differential pulse voltammetry data suggest that the related mixed valent species belong to a valence trapped formulation, featuring localized Ru(III) and Fe(II) oxidation states. In spite of the class II categorization in the Robin and Day scheme, this system shows a remarkable metal–metal electronic coupling, as deduced from an intense, low-energy, and very broad intervalence band in the near-IR region. In addition, the mixed valence state displays enhanced stabilization in relation to the isovalent state. The intervalence transfer properties are discussed on the basis of Hush's theory.Key words: ammineruthenium complexes, cyanoiron complexes, mixed valence, intervalence, benzotriazole, benzotriazolate.

Tuning the excited-state deactivation pathways of dinuclear ruthenium(ii) 2,2′-bipyridine complexes through bridging ligand design

2020 ◽  
Vol 49 (24) ◽  
pp. 8096-8106 ◽  
Author(s):  
Simon Cerfontaine ◽  
Ludovic Troian-Gautier ◽  
Sara A. M. Wehlin ◽  
Frédérique Loiseau ◽  
Emilie Cauët ◽  
...  
Keyword(s):  
Excited State ◽  
Steady State ◽  
Variable Temperature ◽  
Ligand Design ◽  
Binuclear Complexes ◽  
Time Resolved ◽  
Bridging Ligand ◽  
Dinuclear Ruthenium ◽  
Photophysical Study ◽  
Time Resolved Photoluminescence

A detailed photophysical study of binuclear complexes was performed using steady-state and time-resolved photoluminescence measurements at variable temperature. The results were compared with the prototypical [Ru(bpy)3]2+.

Highly coupled mixed-valence dinuclear ruthenium and osmium complexes with a bis-cyclometalating terpyridine analog as bridging ligand

1993 ◽  
Vol 32 (21) ◽  
pp. 4539-4543 ◽  
Author(s):  
Marc Beley ◽  
Jean Paul Collin ◽  
Jean Pierre Sauvage
Keyword(s):  
Mixed Valence ◽  
Bridging Ligand ◽  
Dinuclear Ruthenium ◽  
Osmium Complexes
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