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Paloma Sevillano

Karlsruhe Institute of Technology

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Featured researches published by Paloma Sevillano.

ELECTRONIC PROPERTIES OF MOLECULAR NANOSTRUCTURES: XV International Winterschool/Euroconference | 2002

Photoluminescence and generation of singlet oxygen by ligand-stabilized gold-selenide clusters [Au18Se8(dppe)6]Br2

Sergei Lebedkin; Timo Langetepe; Paloma Sevillano; Dieter Fenske; Manfred M. Kappes

Photophysical properties of a novel ligand-stabilized gold-selenide cluster [Au18Se8(dppe)6]Br2 depend strongly on its aggregation state. The polycrystalline compound shows red photoluminescence (PL) with a quantum yield of 0.55/0.05 and characteristic lifetime of ∼12/∼1 μs at 77/293 K, respectively. The emission was assigned to an excited triplet state. In a solution this state decays more rapidly (τ=63 ns in Ar-purged CH2Cl2) and PL is weak. Despite the short lifetime, the cluster in the triplet state efficiently sensitizes singlet oxygen via energy transfer (the quantum yield is 0.17 in air-equilibrated CH2Cl2). Both in the solid state and in a solution the cluster shows good photostability under UV-VIS irradiation.

Angewandte Chemie | 2008

Synthesis and crystal structures of the ligand-stabilized silver chalcogenide clusters [Ag154Se77(dppxy)18], [Ag320(StBu)60S130(dppp)12], [Ag352S128(StC5H11)96], and [Ag490S188(StC5H11)114].

Christopher E. Anson; Andreas Eichhöfer; Ibrahim Issac; Dieter Fenske; Olaf Fuhr; Paloma Sevillano; Claudia Persau; Dietmar Stalke; Jiatao Zhang

Angewandte Chemie | 2008

Synthesen und Kristallstrukturen der ligandenstabilisierten Silberchalkogenidcluster [Ag154Se77(dppxy)18], [Ag320(StBu)60S130(dppp)12], [Ag352S128(StC5H11)96] und [Ag490S188(StC5H11)114]†

Christopher E. Anson; Andreas Eichhöfer; Ibrahim Issac; Dieter Fenske; Olaf Fuhr; Paloma Sevillano; Claudia Persau; Dietmar Stalke; Jiatao Zhang

Journal of Physical Chemistry B | 2002

Novel Photophysical Properties of Gold Selenide Complexes: Photogeneration of Singlet Oxygen by [Au18Se8(dppe)6]Br2 and Near-Infrared Photoluminescence of [Au10Se4(dpppe)4]Br2

Sergei Lebedkin; Timo Langetepe; Paloma Sevillano; Dieter Fenske,†,§ and; Manfred M. Kappes

Angewandte Chemie | 2006

The Phosphine‐Stabilized Gold–Arsenic Clusters [Au19(AsnPr)8(dppe)6]Cl3, [Au10(AsnPr)4(dppe)4]Cl2, [Au17(AsnPr)6(As2nPr2)(dppm)6]Cl3, and [Au10(AsPh)4(dppe)4]Cl2: Synthesis, Characterization, and DFT Calculations

Paloma Sevillano; Olaf Fuhr; Marco Kattannek; Paola Nava; Oliver Hampe; S. Lebedkin; Reinhart Ahlrichs; Dieter Fenske; Manfred M. Kappes

European Journal of Inorganic Chemistry | 2004

Binary and Ternary Cluster Complexes Containing Gold‐Selenium, Gold‐Indium‐Selenium and Gold‐Gallium‐Tellurium − Synthesis and Structures of [Au5Se2(PPh3)4]Cl, [(Au3Se)2{Ph2P(CH2)6PPh2}3]Cl2, [Au10Se4{Ph2P(CH2)5PPh2}4]InCl5, [Au4(SeInCl3)2{Ph2P(CH2)5PPh2}2], [Au2(TeGaCl3){Ph2P(CH2)6PPh2}]2 and [Au8Se4In{Ph2P(CH2)2PPh2}4](InCl4)3

Jolanta Olkowska‐Oetzel; Paloma Sevillano; Andreas Eichhöfer; Dieter Fenske

Zeitschrift für anorganische und allgemeine Chemie | 2003

Neue Gold‐Selen‐Komplexverbindungen: Synthesen und Strukturen von [Au10Se4(dpppe)4]Br2, [Au2Se(dppbe)]∞, [(Au3Se)2(dppbp)3]Cl2 und [Au34Se14(tpep)6(tpepSe)2]Cl6

Paloma Sevillano; Timo Langetepe; Dieter Fenske

Inorganic Chemistry | 2007

Synthesis, characterization, and X-ray structure determination of [Au18(P)2(PPh)4(PHPh)(dppm)6]Cl3.

Paloma Sevillano; Olaf Fuhr; Oliver Hampe; S. Lebedkin; Eberhard Matern; Dieter Fenske; Manfred M. Kappes

European Journal of Inorganic Chemistry | 2007

Synthesis, Characterization and Quantum Mechanical Calculations of [Au18Se8(dppthph)6]Cl2

Paloma Sevillano; Olaf Fuhr; Oliver Hampe; S. Lebedkin; Christian Neiss; Reinhart Ahlrichs; Dieter Fenske; Manfred M. Kappes

Angewandte Chemie | 2006

Die phosphanstabilisierten Gold-Arsen-Cluster [Au19(AsnPr)8(dppe)6]Cl3, [Au10(AsnPr)4(dppe)4]Cl2, [Au17(AsnPr)6(As2nPr2)(dppm)6]Cl3 und [Au10(AsPh)4(dppe)4]Cl2 – Synthese, Charakterisierung und DFT-Rechnungen†

Paloma Sevillano; Olaf Fuhr; Marco Kattannek; Paola Nava; Oliver Hampe; S. Lebedkin; Reinhart Ahlrichs; Dieter Fenske; Manfred M. Kappes

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Dieter Fenske

Karlsruhe Institute of Technology

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Olaf Fuhr

Karlsruhe Institute of Technology

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Manfred M. Kappes

Karlsruhe Institute of Technology

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Oliver Hampe

Karlsruhe Institute of Technology

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S. Lebedkin

Karlsruhe Institute of Technology

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Andreas Eichhöfer

Karlsruhe Institute of Technology

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Reinhart Ahlrichs

Karlsruhe Institute of Technology

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Timo Langetepe

Karlsruhe Institute of Technology

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Christopher E. Anson

Karlsruhe Institute of Technology

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Claudia Persau

Karlsruhe Institute of Technology

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