Heteroleptic Phenanthroline Complexes of Trinuclear Molybdenum Clusters with Luminescent Properties
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Otros documentos de la autoría: Recatalá Ferrandis, David; Llusar, Rosa; Galindo, Francisco; Brylev, Konstantin A.; Gushchin, Artem L.
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http://dx.doi.org/10.1002/ejic.201403228 |
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Título
Heteroleptic Phenanthroline Complexes of Trinuclear Molybdenum Clusters with Luminescent PropertiesAutoría
Fecha de publicación
2015Editor
WileyISSN
1434-1948; 1099-0682Cita bibliográfica
RECATALÁ, David, et al. Heteroleptic Phenanthroline Complexes of Trinuclear Molybdenum Clusters with Luminescent Properties. European Journal of Inorganic Chemistry, 2015, vol. 2015, no 11, p. 1877-1885.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://onlinelibrary.wiley.com/doi/10.1002/ejic.201403228/abstractVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Neutral Mo3(μ3-S)(μ-S2)3X3(diimine) (X = Cl–, Br–) heteroleptic cluster complexes containing the 1,10-phenanthroline ligands 1H-imidazo[4,5-f][1,10]phenanthroline-2-[3,4-bis(dodecyloxy)phenyl] (IPDOP), 4,7-diphenyl- ... [+]
Neutral Mo3(μ3-S)(μ-S2)3X3(diimine) (X = Cl–, Br–) heteroleptic cluster complexes containing the 1,10-phenanthroline ligands 1H-imidazo[4,5-f][1,10]phenanthroline-2-[3,4-bis(dodecyloxy)phenyl] (IPDOP), 4,7-diphenyl-1,10-phenanthroline (BPhen), and 3,4,7,8-tetramethyl-1,10-phenanthroline (tmphen) were prepared in high yields by straightforward ligand-substitution reactions starting from the [Mo3(μ3-S)(μ-S2)3X6]2– cluster anion. The complexes Mo3S7X4(BPhen) [X = Br– (for 3) and Cl– (for 4)] and Mo3S7X4(tmpphen) [X = Br– (for 5) and Cl– (for 6)] crystallized as tetra-n-butylammonium salts of anionic aggregates (3–6·X)–, in which neutral Mo3S7X3(diiimine)3 cluster molecules participate in non-valence interactions between the axial sulfur atoms, Sax, and a halide anion. The complexes Mo3S7Br4(IPDOP) (1) and Mo3S7Cl4(IPDOP) (2) are luminescent when excited at 330 nm and have maximum emission intensities around 450 nm in DMF and around 435 nm in dichloromethane. The maximum fluorescence quantum yield and the maximum emission lifetime were achieved for complex 2 in DMF(φF = 0.15 and τ = 7.5 ns, respectively). The most important property of complexes 1 and 2 is the shift of their emission spectra in the presence of proton-abstractor anions, such as F–, OH–, and AcO–. When these anions are added to solutions of complexes 1 or 2 in DMF or dichloromethane, the maximum emission wavelength shifts by approximately 90 nm to higher wavelengths. [-]
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European Journal of Inorganic Chemistry Volume 2015, Issue 11, pages 1877–1885, April 2015Derechos de acceso
Copyright © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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