Stereochemical effects on intervalence charge transfer
نویسندگان
چکیده
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 کاملStereochemical influences on intervalence charge transfer in homodinuclear complexes of ruthenium.
The synthesis of polynuclear transition metal assemblies and their electrochemical, photochemical, and photophysical properties have attracted significant recent interest; this has been motivated largely by the potential of multicomponent systems as a basis of novel applicable materials.1 However, the existence of the stereochemical complexities inherent in such systems, and their influence on ...
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Two types of platinum nanoparticles (NPs) functionalized with ethynylferrocene were prepared. The subnanometer-sized NPs (Pt10eFc) showed semiconductor-like characteristics with a bandgap of about 1.0 eV, and the other was metal-like with a core size of about 2 nm (Pt314eFc) and no significant bandgap. IR spectroscopic measurements showed a clear red-shift of the C≡C and ferrocenyl ring =C-H vi...
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 کاملNanoparticle-mediated intervalence transfer.
Nanoparticle-mediated intervalence transfer was reported with ferrocene moieties that were attached onto the ruthenium nanoparticle surface by ruthenium-carbene pi bonds. The resulting particles exhibited two pairs of voltammetric waves with a potential spacing of about 200 mV and a rather intense absorption peak in the near-infrared range (approximately 1930 nm) at mixed valence. Both features...
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ژورنال
عنوان ژورنال: Pure and Applied Chemistry
سال: 2008
ISSN: 1365-3075,0033-4545
DOI: 10.1351/pac200880010001