Intervalence Charge-Transfer System by 1D Assembly of New Mixed-Valence Octanuclear CuI/CuII/CuIIICluster Units

2011 ◽  
Vol 50 (7) ◽  
pp. 2708-2710 ◽  
Author(s):  
Takashi Okubo ◽  
Hiroyasu Kuwamoto ◽  
Kyung Ho Kim ◽  
Shinya Hayami ◽  
Akihito Yamano ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Mixed Valence ◽  
Transfer System ◽  
Intervalence Charge Transfer

scholarly journals Configuration coordinate energy level diagrams of intervalence and metal-to-metal charge transfer states of dopant pairs in solids

2015 ◽  
Vol 17 (30) ◽  
pp. 19874-19884 ◽  
Author(s):  
Zoila Barandiarán ◽  
Andries Meijerink ◽  
Luis Seijo
Keyword(s):  
Charge Transfer ◽  
Energy Level ◽  
Energy Levels ◽  
Mixed Valence ◽  
Active Centers ◽  
Metal Charge ◽  
Intervalence Charge Transfer ◽  
Metal Charge Transfer ◽  
Configuration Coordinate

Configuration coordinate diagrams, which are normally used in a qualitative manner for the energy levels of active centers in phosphors, are quantitatively obtained here for intervalence charge transfer (IVCT) states of mixed valence pairs and metal-to-metal charge transfer (MMCT) states of heteronuclear pairs, in solid hosts.

scholarly journals Quantification of the mixed-valence and intervalence charge transfer properties of a cofacial metal–organic framework via single crystal electronic absorption spectroscopy

2020 ◽  
Vol 11 (20) ◽  
pp. 5213-5220
Author(s):  
Patrick W. Doheny ◽  
Jack K. Clegg ◽  
Floriana Tuna ◽  
David Collison ◽  
Cameron J. Kepert ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Mixed Valence ◽  
Three Dimensional ◽  
Fundamental Understanding ◽  
Intervalence Charge Transfer ◽  
Metal Organic ◽  
Transfer Properties ◽  
Transfer Mechanisms

Gaining a fundamental understanding of charge transfer mechanisms in three-dimensional Metal–Organic Frameworks (MOFs) is crucial to the development of electroactive and conductive porous materials.

Synthesis, Characterization, and Intervalence Charge Transfer Properties of a Series of Rhenium(I)−Iron(III) Mixed-Valence Compounds

1999 ◽  
Vol 38 (3) ◽  
pp. 606-612 ◽  
Author(s):  
Brian W. Pfennig ◽  
Jamie L. Cohen ◽  
Irene Sosnowski ◽  
Nathan M. Novotny ◽  
Douglas M. Ho
Keyword(s):  
Charge Transfer ◽  
Mixed Valence ◽  
Intervalence Charge Transfer ◽  
Mixed Valence Compounds ◽  
Transfer Properties

Stark spectroscopy of mixed-valence systems

2007 ◽  
Vol 366 (1862) ◽  
pp. 33-45 ◽  
Author(s):  
Lisa N Silverman ◽  
Pakorn Kanchanawong ◽  
Thomas P Treynor ◽  
Steven G Boxer
Keyword(s):  
Charge Transfer ◽  
Electric Fields ◽  
Dipole Moments ◽  
Mixed Valence ◽  
Quantitative Information ◽  
Stark Spectroscopy ◽  
Charge Transfer Transition ◽  
Band Position ◽  
Stark Effects ◽  
Intervalence Charge Transfer

Many mixed-valence systems involve two or more states with different electric dipole moments whose magnitudes depend upon the charge transfer distance and the degree of delocalization; these systems can be interconverted by excitation of an intervalence charge transfer transition. Stark spectroscopy involves the interaction between the change in dipole moment of a transition and an electric field, so the Stark spectra of mixed-valence systems are expected to provide quantitative information on the degree of delocalization. In limiting cases, a classical Stark analysis can be used, but in intermediate cases the analysis is much more complex because the field affects not only the band position but also the intrinsic bandshape. Such non-classical Stark effects lead to widely different bandshapes. Several examples of both classes are discussed. Because electric fields are applied to immobilized samples, complications arise from inhomogeneous broadening, along with other effects that limit our ability to extract unique parameters in some cases. In the case of the radical cation of the special pair in photosynthetic reaction centres, where the mixed-valence system is in a very complex but structurally well-defined environment, a detailed analysis can be performed.

A Hexadecanuclear Copper(I)–Copper(II) Mixed-Valence Compound: Structure, Magnetic Properties, Intervalence Charge Transfer, EPR, and NMR

2007 ◽  
Vol 2007 (23) ◽  
pp. 3695-3700 ◽  
Author(s):  
Senjuti De ◽  
Shubhamoy Chowdhury ◽  
Jnan P. Naskar ◽  
Michael G. B. Drew ◽  
Rodolphe Clérac ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Charge Transfer ◽  
Mixed Valence ◽  
Compound Structure ◽  
Intervalence Charge Transfer ◽  
Mixed Valence Compound

Optically probing the localized to delocalized transition in Mo2–Mo2 mixed-valence systems

2017 ◽  
Vol 53 (21) ◽  
pp. 3030-3033 ◽  
Author(s):  
Yi Yang Wu ◽  
Miao Meng ◽  
Gang Yi Wang ◽  
Pengju Feng ◽  
Chun Y. Liu
Keyword(s):  
Charge Transfer ◽  
Absorption Band ◽  
Energy Intensity ◽  
Mixed Valence ◽  
Class Ii ◽  
Class Iii ◽  
Spectral Parameters ◽  
Band Energy ◽  
Charge Transfer Absorption Band ◽  
Intervalence Charge Transfer

A transition of mixed-valence systems from Class II to Class III crossing the Class II–III borderline is achieved by four thienylene-bridged Mo2 dimers, and is probed using spectral parameters of intervalence charge transfer absorption (band energy, intensity and shape). This study offers fresh and detailed observations of optical behaviors of MV compounds in different regimes.

scholarly journals Stereochemical effects on intervalence charge transfer

2008 ◽  
Vol 80 (1) ◽  
pp. 1-16 ◽  
Author(s):  
Deanna M. D'Alessandro ◽  
F. Richard Keene
Keyword(s):  
Electron Transfer ◽  
Charge Transfer ◽  
Recent Progress ◽  
Mixed Valence ◽  
Intramolecular Electron Transfer ◽  
The Past ◽  
Electronic Delocalization ◽  
Intervalence Charge Transfer ◽  
Electron Transfer Properties ◽  
Transfer Properties

Recent work has revealed the first observation of stereochemical effects on intervalence charge transfer (IVCT) in di- and trinuclear mixed-valence complexes. The differential IVCT characteristics of the diastereoisomers of polypyridyl complexes of ruthenium and osmium offer a new and intimate probe of the fundamental factors that govern the extent of electronic delocalization and the barrier to electron transfer. These findings challenge prior assertions that the inherent stereochemical identity of such complexes would have no influence on the intramolecular electron-transfer properties of polymetallic assemblies. This article provides a brief review of the past 40 years of mixed-valence research and looks at recent progress in stereochemical effects on IVCT. The implications of the findings are considered within the context of the existing theoretical and experimental framework for IVCT.

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