Thermal, spectroscopic and luminescence investigations of lanthanide(III) coordination polymers based on V-shaped 4,4′-sulfonyldibenzoic acid

Łyszczek, Renata; Ostasz, A.; Bartyzel, Agata; Lipke, Agnieszka

doi:10.1016/j.jaap.2015.08.018

Cited by 23 publications

(11 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[26] Substituting 10 % of Sc 3+ ions by Tb 3+ or Eu 3+ ions in Sc-CAU-11 resulted in a green and red emission, respectively, after excitation with UV-light of λ = 254 (Figure 7). The phase purity of the samples was confirmed by PXRD and Figure S11), [27] and N 2 sorption data of Sc-CAU-11:Tb demonstrates no change in porosity ( Figure S12). EDX results are summarized in Table S4 and demonstrate that more than 60 % of the employed rare earth ions are incorporated into the reaction product.…”

Section: Optical Propertiesmentioning

confidence: 84%

“…The phase purity of the samples was confirmed by PXRD and Le Bail fits (Figure S9–10). No indications on the formation of the known Eu 3+ and Tb 3+ compounds of composition [M 2 (SDBA) 3 ] is observed (Figure S11), and N 2 sorption data of Sc‐CAU‐11:Tb demonstrates no change in porosity (Figure S12). EDX results are summarized in Table S4 and demonstrate that more than 60 % of the employed rare earth ions are incorporated into the reaction product.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and Characterization of a Layered Scandium MOF Containing a Sulfone‐Functionalized V‐Shaped Linker Molecule

Rönfeldt

Reinsch

Faßheber³

et al. 2020

Eur J Inorg Chem

View full text Add to dashboard Cite

A new scandium metal‐organic framework (MOF) with the composition [Sc(OH)(SDBA)], denoted Sc‐CAU‐11, was synthesized under solvothermal reaction conditions using 4,4‐sulfonyldibenzoic acid (H2SDBA), as a V‐shaped linker molecule. The crystal structure was refined from powder X‐ray diffraction (PXRD) data employing the Rietveld method and using the structural model of the isostructural aluminium compound. Sc‐CAU‐11 crystallizes in the orthorhombic space group Pnma and is composed of chains of trans corner‐sharing ScO6 octahedra. The chains are connected by the linker molecules to form layers with intralayer porosity and an ABAB stacking sequence. Detailed characterization was carried out by elemental analysis, IR‐spectroscopy, thermogravimetric analysis, gas sorption and luminescence measurements. Sc‐CAU‐11 shows a high thermal stability up to 500 °C in air, which is confirmed by temperature‐depended PXRD measurements. The optical properties were tuned by substituting Sc3+ ions in Sc‐CAU‐11 with trivalent europium and terbium ions and strong temperature as well as excitation dependent optical emission is observed.

show abstract

Section: Optical Propertiesmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of a Layered Scandium MOF Containing a Sulfone‐Functionalized V‐Shaped Linker Molecule

Rönfeldt

Reinsch

Faßheber³

et al. 2020

Eur J Inorg Chem

View full text Add to dashboard Cite

show abstract

“…In that family of materials, the metal carboxylates are specially interesting since they contain both organic and inorganic components: they not only form open-framework structures resulting from the presence of the carboxylate function itself, but also where the carboxylate group acts as a linker between inorganic moieties. Lanthanide(III) carboxylates attract the attention because of their luminescence properties and their spectrally narrow emission [3][4][5][6]. The large magnetic moment of the most of the lanthanide(III) ions together with their anisotropy makes these ions very useful in preparation of magnetic materials [7,8].…”

Section: Introductionmentioning

confidence: 99%

Thermal and spectroscopic (IR, XPS) properties of lanthanide(III) benzene-1,3,5-triacetate complexes

Sienkiewicz-Gromiuk

Rusinek

Kurach

et al. 2016

J Therm Anal Calorim

View full text Add to dashboard Cite

The metal-organic frameworks of the formula Ln(bta)ÁnH 2 O where n = 3, 4, 5 or 6; bta = benzene-1,3,5triacetate ion: [C 9 H 9 (COO) 3 ] 3-; Ln = La(III), Nd(III), Eu(III), Tb(III), Ho(III), Tm(III), Lu(III) were synthesized by the reaction of LnCl 3 ÁxH 2 O with ammonium salt of H 3 bta acid in water solution. Insoluble water compounds crystallize in the monoclinic or triclinic crystal system, and they are stable up to 30°C. When heated, they decompose up to 160-200°C in two stages to stable anhydrous compounds. The dehydrated compounds Ln(bta) are still crystalline and stable up to about 350°C. When heated above 350°C, they undergo decomposition where the intermediate products are Ln 2 O 2 CO 3 or Tb 4 O 6 CO 3 and the residues are: Ln 2 O 3 or Tb 4 O 7. The interpretation of IR spectra of title compounds was made taking into consideration the experimental and theoretical wavenumbers obtained for H 3 bta specie. The XPS spectra of H 3 bta and its complexes were recorded. The way of metal-carboxylate group of ligand coordination was discussed. This work presents the results of the XPS analyses, which allowed to determine the binding energies (E b) for the main lines of Ln3d, Ln4d, Ln5p, C1s, O1s spectra, spin-orbital splitting and full width at half maximum complexes.

show abstract

“…3-5. At the beginning of the decomposition process of all studied compounds, the main gaseous products emitted at around 320-360°C are identified as: H 2 O (4000-3450 and 1950-1300 cm -1 ) [10][11][12][13][14] and CO 2 (peaks at 2450-2300 and 750-600 cm -1 ) [10][11][12][13][14]. Then the pyrolysis of compounds proceeds in three different ways (Scheme 2).…”

Section: Thermal Behaviour Of 1-6 Under Nitrogen Atmospherementioning

confidence: 99%

Thermal behaviour of antiproliferative active 3-(2-furanyl)-8-aryl-7,8-dihydroimidazo[2,1-c][1,2,4]triazin-4(6H)-ones

Bartyzel

Sztanke

2017

J Therm Anal Calorim

Self Cite

View full text Add to dashboard Cite

Thermal analysis is commonly used in the pharmaceutical field because it is an important tool in the solution of problems involving development, production and quality control of medicines. This paper presents the thermal behaviour of six anticancer active derivativestriazin-4(6H)-one. The samples were characterized by the TG-DSC and TG-FTIR analyses. The studied compounds are stable at room temperature which is important for medical application. The TG analysis under dynamic air atmosphere revealed that thermal degradation of the compounds starts above 300°C and proceeds in two steps. The melting processes of compounds are observed before starting their decomposition or at the beginning of their combustion. Pyrolysis processes under nitrogen atmosphere take place in single or two steps. The major pyrolysis gaseous products identified are ammonia, carbon dioxide, isocyanic acid and its derivatives, hydrogen cyanide, aniline or its derivatives and carbon monoxide.

show abstract

Thermal, spectroscopic and luminescence investigations of lanthanide(III) coordination polymers based on V-shaped 4,4′-sulfonyldibenzoic acid

Cited by 23 publications

References 42 publications

Synthesis and Characterization of a Layered Scandium MOF Containing a Sulfone‐Functionalized V‐Shaped Linker Molecule

Synthesis and Characterization of a Layered Scandium MOF Containing a Sulfone‐Functionalized V‐Shaped Linker Molecule

Thermal and spectroscopic (IR, XPS) properties of lanthanide(III) benzene-1,3,5-triacetate complexes

Thermal behaviour of antiproliferative active 3-(2-furanyl)-8-aryl-7,8-dihydroimidazo[2,1-c][1,2,4]triazin-4(6H)-ones

Contact Info

Product

Resources

About