Luminescent gold and silver complexes with the monophosphane 1‑(PPh2)‑2-Me‑C2B10H10 and their conversion to gold micro- and superstructured materials
Author
dc.contributor.author
Crespo, Olga
es_CL
Author
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Díaz Valenzuela, Carlos
Author
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O’Dwyer, Colm
es_CL
Author
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Gimeno, M. Concepción
es_CL
Author
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Laguna, Antonio
es_CL
Author
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Ospino, Isaura
es_CL
Author
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Valenzuela, María Luisa
es_CL
Admission date
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2015-01-09T12:51:42Z
Available date
dc.date.available
2015-01-09T12:51:42Z
Publication date
dc.date.issued
2014
Cita de ítem
dc.identifier.citation
Inorg. Chem. 2014, 53, 7260−7269
en_US
Identifier
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DOI: 10.1021/ic5005424
Identifier
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https://repositorio.uchile.cl/handle/2250/119917
General note
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Artículo de publicación ISI
en_US
Abstract
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Gold and silver complexes containing the monophosphane
1-PPh2-2-Me-l,2-C2B10H10 with different coordination numbers (2, 3)
have been synthesized: [M(7,8-(PPh2)2-C2B9H10)(1-PPh2-2-Me-
C2B10H10)] (M = Ag, Au) and [Au2(μ-1,n-C2B10H10)(1-PPh2-2-Me-
C2B10H10)2] (n = 2, 12). Solid-state pyrolysis of [AuCl(1-PPh2-2-Me-
C2B10H10)] and [Au2(μ-1,12-C2B10H10)(1-PPh2-2-Me-C2B10H10)2] in air
and of solutions of [AuCl(1-PPh2-2-Me-C2B10H10)] deposited on silicon
and silica at 800 °C results in single-crystal Au, confirmed by diffraction
and SEM-EDS. The morphology of the pyrolytic products depends on the
thermolytic conditions, and different novel 3-D superstructures or
microcrystals are possible. We also propose a mechanism for the thermal
conversion of these precursors to structural crystalline and phase pure
materials. The presence of the carborane monophosphane seems to
originate quenching of the luminescence at room temperature in the
complexes [Au2(μ-1,n-C2B10H10)(1-PPh2-2-Me-C2B10H10)2], in comparison with other [Au2(μ-1,n-C2B10H10)L2] species (L =
monophosphane).
en_US
Patrocinador
dc.description.sponsorship
Ministerio de Economıá y Competitividad-
FEDER (No. CTQ2010-20500-C02-01) and DGA-FSE (E77)
and FONDECYT project 1120179.