Conformation-Determined Through-Bond versus Through-Space Electronic Communication in Mixed-Valence Systems with a Cross-Conjugated Urea Bridge

2014 ◽  
Vol 21 (4) ◽  
pp. 1554-1566 ◽  
Author(s):  
Zhong-Liang Gong ◽  
Yu-Wu Zhong ◽  
Jiannian Yao
Keyword(s):  
Electronic Communication ◽  
Mixed Valence

Electronic Communication in the Mixed-valence States of Cyclobutadienecobalt Complexes having Two Ferrocenes and Two Anthraquinones

2007 ◽  
Vol 18 (1) ◽  
pp. 124-130 ◽  
Author(s):  
Toshiyuki Nakaya ◽  
Kosuke Namiki ◽  
Masaki Murata ◽  
Katsuhiko Kanaizuka ◽  
Masashi Kurashina ◽  
...  
Keyword(s):  
Electronic Communication ◽  
Mixed Valence ◽  
Valence States

Electrochemical Behaviour of trans-[FeH(CN)(dppe)2] Adducts

2003 ◽  
Vol 68 (9) ◽  
pp. 1663-1676 ◽  
Author(s):  
Sílvia S. P. R. Almeida ◽  
M. Fátima C. Guedes Da Silva ◽  
Armando J. L. Pombeiro
Keyword(s):  
Electronic Communication ◽  
Electrochemical Behaviour ◽  
Mixed Valence ◽  
Electron Donors ◽  
Dinuclear Complexes ◽  
Ligand Parameters ◽  
Reduction Processes ◽  
Oxidation Potentials

Electrochemical behaviour of various metallo cyano adducts of trans-[FeH(CN)(dppe)2], viz. the dinuclear complexes [FeH(dppe)2(μ-CN)PdCl2(PPh3)], [FeH(dppe)2(μ-CN)NiCl2(PCy3)], and trinuclear [{FeH(dppe)2(μ-CN)}2(ReOCl3)], [{FeH(dppe)2(μ-CN)}2PtCl(Ph)] and [{FeX(dppe)2(μ-CN)}2WCl3(OH)] (X = Cl or OH, dppe = 1,2-diphenylphosphinoethane, PCy3 = P(C6H11)3), as well as the benzoylisocyanide mononuclear adduct trans-[FeH(CNCOPh)- (dppe)2], is reported. All of them exhibit FeII/FeIII-based oxidations (which are reversible, except for trans-[FeH(CNCOPh)(dppe)2]). The metallocyanide bridges C≡N-Re-N≡C and C≡N-W-N≡C in [{FeH(dppe)2(μ-CN)}2(ReOCl3)] and [{FeX(dppe)2(μ-CN)}2WCl3(OH)], respectively, allow electronic communication between the iron centres, with possible generation of mixed-valence FeII/FeIII complexes whose comproportionation constant could be estimated in the former case. From the values of the measured oxidation potentials, the electrochemical PL and EL ligand parameters have been estimated for the metallocyanide ligands that were shown to behave as stronger net electron donors than organoisocyanides, although weaker than cyanide itself. Ligand-centred reduction processes were also observed to lead, in the cases of complexes trans-[FeH(CNCOPh)(dppe)2] (CNCOPh-based reduction) and [FeH(dppe)2(μ-CN)PdCl2(PPh3)] (PdII-based reduction in the CNPdCl2(PPh3)- metallocyanide ligand), to the dissociation of the adduct, with regeneration of the parent cyano complex trans-[FeH(CN)(dppe)2], thus reflecting the reductive decrease of the electrophilic (or Lewis acidic) character of the benzoyl and {PdCl2(PPh3)} groups.

Tuning the Electronic Communication in Heterobimetallic Mixed-Valence Ions of (1-Ferrocenyl)- and (2-Ferrocenyl)indenyl Rhodium Isomers

2007 ◽  
Vol 13 (7) ◽  
pp. 1955-1968 ◽  
Author(s):  
Saverio Santi ◽  
Laura Orian ◽  
Christian Durante ◽  
Annalisa Bisello ◽  
Franco Benetollo ◽  
...  
Keyword(s):  
Electronic Communication ◽  
Mixed Valence

Heisenberg and double exchange in iron mixed valence [Fe6S6]+ supercluster

1997 ◽  
Vol 90 (3) ◽  
pp. 445-463 ◽  
Author(s):  
M. CZERWINSKI ◽  
J. DĄBROWSKI
Keyword(s):  
Mixed Valence ◽  
Double Exchange

Theory for the mixed-valence state

1979 ◽  
Vol 40 (C5) ◽  
pp. C5-374-C5-374 ◽  
Author(s):  
C. M. Varma
Keyword(s):  
Valence State ◽  
Mixed Valence ◽  
Mixed Valence State

MIXED VALENCE STATE OF Sm ON THE SURFACE OF AMORPHOUS La80-xSmxAu20 ALLOYS

1980 ◽  
Vol 41 (C8) ◽  
pp. C8-799-C8-802 ◽  
Author(s):  
G. Krill ◽  
A. Amamou ◽  
A. Berrada ◽  
J. Durand ◽  
N. Hassanain
Keyword(s):  
Valence State ◽  
Mixed Valence ◽  
Mixed Valence State

PHONONS IN MIXED VALENCE COMPOUNDS

1981 ◽  
Vol 42 (C6) ◽  
pp. C6-3-C6-10 ◽  
Author(s):  
W. Kress ◽  
H. Bilz ◽  
G. Güntherodt ◽  
A. Jayaraman
Keyword(s):  
Mixed Valence ◽  
Mixed Valence Compounds
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