0000000001299839

AUTHOR

Carmen Tiseanu

showing 5 related works from this author

Photoluminescence study of terbium-exchanged ultrastable Y zeolites: Number of species, photoluminescence decays and decay-associated spectra

2008

Terbium-exchanged ultrastable Y (USY) zeolites were investigated by using time-resolved photoluminescence spectroscopy techniques and methods. To determine the distribution of terbium species in USY zeolites together with their photoluminescence properties, several analysis methods for the time-resolved luminescence spectra were used such as the area normalization of time-resolved photoluminescence spectra, singular value decomposition, global nonlinear least squares, and the maximum entropy. Except for a questionable long lifetime, small contribution of a terbium species with lifetime of 1.9¿2.1 ms, all the experimental and analysis results converged to a two terbium species distribution w…

LanthanidePhotoluminescenceSilylationAnalytical chemistryFísicaGeneral Physics and Astronomychemistry.chemical_elementTerbiumQuímica analíticaCiència dels materialsSpectral linechemistryNon-linear least squaresInstitut für ChemieTime-resolved spectroscopySpectroscopy
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Aggregation of [Ln(12)(III)] clusters by the dianion of 3-formylsalicylic acid. Synthesis, crystal structures, magnetic and luminescence properties

2019

Three isostrucutral dodecanuclear clusters with the general formula [Ln(12)(fsa)(12)(mu f(3)-OH)(12)(DMF)(12)]center dot nDMF (fsa(2-) is the dianion of 3-formylsalicylic acid; Ln = Eu 1, Gd 2, Dy 3) have been obtained from the reaction of fromylsalicyclic acid (H(2)fsa), tetrabutylammonium hydroxide and Ln(NO3)(3)center dot 6H(2)O in methanol/DMF. Their structure consists of four vertex-sharing heterocubanes. Each heterocubane unit is assembled from four Ln(III) ions, three mu(3)-OH groups and one mu(3)-oxygen atom arising from the fsa(2-) carboxylato group. The photophysical properties of the europium derivative investigated at both 300 and 80 K sustain a relative intense emission obtaine…

---Materials science010405 organic chemistryTetrabutylammonium hydroxidechemistry.chemical_elementCrystal structure010402 general chemistry01 natural sciences0104 chemical sciencesIonInorganic Chemistrychemistry.chemical_compoundCrystallographychemistryAtomDysprosiumMagnetic refrigerationEuropiumLuminescence
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CCDC 1825561: Experimental Crystal Structure Determination

2019

Related Article: Alina S. Dinca, Alexei Mindru, Diana Dragancea, Carmen Tiseanu, Sergiu Shova, Samuele Cornia, Luca M. Carrella, Eva Rentschler, Marco Affronte, Marius Andruh|2019|Dalton Trans.|48|1700|doi:10.1039/C8DT04602F

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersdodecakis(mu-3-formyl-2-oxidobenzoato)-dodecakis(mu-hydroxo)-dodecakis(NN-dimethylformamide)-dodeca-gadolinium(iii) NN-dimethylformamide solvateExperimental 3D Coordinates
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CCDC 1825562: Experimental Crystal Structure Determination

2019

Related Article: Alina S. Dinca, Alexei Mindru, Diana Dragancea, Carmen Tiseanu, Sergiu Shova, Samuele Cornia, Luca M. Carrella, Eva Rentschler, Marco Affronte, Marius Andruh|2019|Dalton Trans.|48|1700|doi:10.1039/C8DT04602F

Space GroupCrystallographyCrystal Systemdodecakis(mu-3-formyl-2-oxidobenzoato)-dodecakis(mu-hydroxo)-dodecakis(NN-dimethylformamide)-dodeca-dysprosium(iii) NN-dimethylformamide solvateCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1825560: Experimental Crystal Structure Determination

2019

Related Article: Alina S. Dinca, Alexei Mindru, Diana Dragancea, Carmen Tiseanu, Sergiu Shova, Samuele Cornia, Luca M. Carrella, Eva Rentschler, Marco Affronte, Marius Andruh|2019|Dalton Trans.|48|1700|doi:10.1039/C8DT04602F

Space GroupCrystallographyCrystal SystemCrystal Structuredodecakis(mu-3-formyl-2-oxidobenzoato)-dodecakis(mu-hydroxo)-dodecakis(NN-dimethylformamide)-dodeca-europium(iii) NN-dimethylformamide solvateCell ParametersExperimental 3D Coordinates
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