Pentalene Complexes of Group 7 Metal Carbonyls:  An Organometallic Mixed-Valence System with Very Large Metal−Metal Electronic Coupling

2002 ◽  
Vol 124 (39) ◽  
pp. 11610-11611 ◽  
Author(s):  
Simon C. Jones ◽  
Tony Hascall ◽  
Stephen Barlow ◽  
Dermot O'Hare
Keyword(s):  
Mixed Valence ◽  
Electronic Coupling ◽  
Metal Carbonyls ◽  
Metal Metal

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.

Orthogonal electronic coupling in multicentre arylamine mixed-valence compounds based on a dibenzofulvene–thiophene conjugated bridge

2017 ◽  
Vol 53 (64) ◽  
pp. 8960-8963 ◽  
Author(s):  
A. Beneduci ◽  
G. A. Corrente ◽  
E. Fabiano ◽  
V. Maltese ◽  
S. Cospito ◽  
...  
Keyword(s):  
Near Infrared ◽  
Mixed Valence ◽  
Infrared Region ◽  
Optical Modulation ◽  
Electronic Coupling ◽  
Voltage Dependent ◽  
Near Infrared Region ◽  
Mixed Valence Compounds

Novel H-shaped tetrarylamine mixed valence compounds showing orthogonal electronic coupling generate voltage-dependent electro-optical modulation in the near infrared region.

scholarly journals Electronic coupling mediated by furan, thiophene, selenophene and tellurophene in a homologous series of organic mixed valence compounds

2014 ◽  
Vol 50 (74) ◽  
pp. 10883 ◽  
Author(s):  
Ann Christin Jahnke ◽  
Mariana Spulber ◽  
Markus Neuburger ◽  
Cornelia G. Palivan ◽  
Oliver S. Wenger
Keyword(s):  
Homologous Series ◽  
Mixed Valence ◽  
Electronic Coupling ◽  
Mixed Valence Compounds

scholarly journals Tetrazine-Based Ligand Transformation Driving Metal–Metal Bond and Mixed-Valence HgI/HgII

ACS Omega ◽  
2018 ◽  
Vol 3 (8) ◽  
pp. 10273-10277 ◽  
Author(s):  
Maykon A. Lemes ◽  
Hilarie N. Stein ◽  
Bulat Gabidullin ◽  
Stephan N. Steinmann ◽  
Muralee Murugesu
Keyword(s):  
Mixed Valence ◽  
Metal Bond ◽  
Metal Metal
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