Intervalence charge transfer (IVCT) in trinuclear and tetranuclear complexes of iron, ruthenium, and osmium.
نویسندگان
چکیده
2.5. Molecular Squares and Clusters 2283 2.6. Prussian Blue Mimics 2284 3. Pyrazine-Bridged Species 2285 4. Polyferrocences 2285 4.1. Linear Polyferrocenes 2285 4.2. Cyclic and Starburst Polyferrocenes 2287 4.3. Quantum Cellular Automata 2288 5. Polypyridyl Bridges 2288 6. Stereochemical Influences on IVCT 2291 7. Trinuclear Oxo-Centered Iron Carboxylates 2293 8. Iron and Manganese Alkoxide Cubes 2294 9. Tri-bidentate Bridges 2294 10. Dimers of Trimers 2294 11. Conclusions and Future Perspectives 2294 12. Acknowledgments 2296 13. References 2296
منابع مشابه
Stereochemical effects on intervalence charge transfer
Recent work has revealed the first observation of stereochemical effects on intervalence charge transfer (IVCT) in diand 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 ...
متن کاملMultisite effects on intervalence charge transfer in a clusterlike trinuclear assembly containing ruthenium and osmium.
The intervalence charge transfer (IVCT) properties of the mixed-valence forms of the diastereoisomers of the dinuclear [[Ru(bpy)2](mu-HAT)[M(bpy)2]]5+ (M = Ru or Os) complexes and the trinuclear heterochiral [[Ru(bpy)2]2[Os(bpy)2](mu-HAT)]n+ (n = 7, 8; HAT = 1,4,5,8,9,12-hexaazatriphenylene; bpy = 2,2'-bipyridine) species display a marked dependence on the nuclearity and extent of oxidation of ...
متن کاملUnderlying spin-orbit coupling structure of intervalence charge transfer bands in dinuclear polypyridyl complexes of ruthenium and osmium.
The mixed-valence systems meso- and rac-[{M(bpy)2}2(mu-BL)]5+ {M = Ru, Os; BL = a series of polypyridyl bridging ligands such as 2,3-bis(2-pyridyl)benzoquinoxaline (dpb)} are characterized by multiple intervalence charge transfer (IVCT) and interconfigurational (IC) bands in the mid-infrared and near-infrared (NIR) regions. Differences in the relative energies of the IC transitions for the full...
متن کاملCurrent trends and future challenges in the experimental, theoretical and computational analysis of intervalence charge transfer (IVCT) transitions.
Mixed-valence chemistry has a long and rich history which is characterised by a strong interplay of experimental, theoretical and computational studies. The intervalence charge transfer (IVCT) transitions generated in dinuclear mixed-valence species (particularly of ruthenium and osmium) have received considerable attention in this context, as they provide a powerful and sensitive probe of the ...
متن کاملProbing the transition between the localised (class II) and localised-to-delocalised (class II-III) regimes by using intervalence charge-transfer solvatochromism in a series of mixed-valence dinuclear ruthenium complexes.
Intervalence charge-transfer (IVCT) solvatochromism studies on the diastereoisomeric forms of [{Ru(bpy)(2)}(2)(mu-BL)](5+) (bpy=2,2'-bipyridine; BL=a series of di-bidentate polypyridyl bridging ligands) reveal that the solvent dependencies of the IVCT transitions decrease as the "tail" of the bridging ligand is extended, and the extent of delocalisation increases. Utilising a classical theoreti...
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ورودعنوان ژورنال:
- Chemical reviews
دوره 106 6 شماره
صفحات -
تاریخ انتشار 2006