A comparative study of the redox and excited state properties of (nBu4N)2[Mo6X14] and (nBu4N)2[Mo6X8(CF3COO)6] (X = Cl, Br, or I)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F13%3A00392093" target="_blank" >RIV/68378271:_____/13:00392093 - isvavai.cz</a>
Alternative codes found
RIV/61388980:_____/13:00392093 RIV/61388955:_____/13:00392093 RIV/60076658:12310/13:43885283
Result on the web
<a href="http://dx.doi.org/10.1039/c3dt32863e" target="_blank" >http://dx.doi.org/10.1039/c3dt32863e</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c3dt32863e" target="_blank" >10.1039/c3dt32863e</a>

Result language
angličtina
Original language name
A comparative study of the redox and excited state properties of (nBu4N)2[Mo6X14] and (nBu4N)2[Mo6X8(CF3COO)6] (X = Cl, Br, or I)
Original language description
The excited-state dynamics, luminescence, and redox properties of a series of hexanuclear molybdenum cluster complexes, (nBu4N)2[Mo6X14] and (nBu4N)2[Mo6X8(CF3COO)6] (X = Cl, Br, or I), were investigated. Substitution of the apical halogen ligands for the trifluoroacetate ligands increased the oxidation potentials and induced a blue shift in the absorption and luminescence bands as well as a considerable increase in the luminescence quantum yields for heavy inner ligands. Time-resolved transient absorption measurements showed that the intersystem crossing from the excited singlet states is ultrafast with time constants ranging between <120 fs and 1.68 ps and leads to hot triplet states. The following cooling occurred at a ps time scale and was assignedto electronic redistribution within the emissive triplet state sublevels. The formation of singlet oxygen, O2(1?g), suggested earlier on the basis of photooxidation experiments for some complexes, was revised by direct measurements of O2
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
—

Project
<a href="/en/project/GA13-05114S" target="_blank" >GA13-05114S: Hexanuclear molybdenum clusters with tunable photophysical properties</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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