Structural studies of poly[(μ 2 -acetato)(μ 3 -5-aminoisophthalato)diaquacerium(III) monohydrate]: A new three dimensional fluorescent metal-organic framework constructed from dimers of CeO 9 polyhedra with hydrophilic ‘S’ shaped channels

Chandran, P.R. Satheesh; Mol, U.S. Soumya; Drisya, R.; Sudarsanakumar, M.R.; Kurup, M.R. Prathapachandra

doi:10.1016/j.molstruc.2017.02.024

Cited by 19 publications

(3 citation statements)

References 23 publications

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“…Moreover, in Figure a the La‐MOFs ( M1 and M2 ) shows a red‐shifted emission due to coordination of ligands to lanthanum. It can be observed from the spectra a broad photoluminescent emission with enhanced intensity characteristic of La (III) complexes with f‐d transitions . Also, the fluorescent behavior of the La‐MOF materials can be attributed to π –π* and π‐n molecular orbital transitions within the aromatic rings of the carboxylate and diamine ligands or due to ligand‐to‐metal charge transfer .…”

Section: Resultsmentioning

confidence: 95%

A novel nano‐size lanthanum metal–organic framework based on 5‐amino‐isophthalic acid and phenylenediamine: Photoluminescence study and sensing applications

Sheta

El‐Sheikh

Abd-Elzaher

et al. 2019

Applied Organom Chemis

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In this paper, a novel lanthanum metal–organic framework La‐MOF was prepared via hydrothermal and reflux methods. The La‐MOF was achieved through the reaction of a 5‐amino‐isophthalic acid with 1, 2‐phenylenediamine and lanthanum chloride. The prepared La‐MOF structure was confirmed by XRD, mass spectrometry, IR, UV–Vis and elemental analysis, whereas the size, and morphology was examined by FE‐SEM/EDX and HR‐TEM. The results indicated that the La‐MOF prepared via both methods have the same structure and composition. Meanwhile, the MOF yield, reaction time, morphology, physiochemical and sensing properties were highly depended on the used preparation method. The photoluminescence (PL) study was carried out for the La‐MOF, and the results showed that La‐MOF exhibits strong emission at 558 nm after excitation at 369 nm. Moreover, the PL data indicating that the La‐MOF has highly selective sensing properties for iron (III) competing with different metal ions. The Stern‐Völmer graph shows a linear calibration curve which achieved over a concentration range 1.0–500 μM of Fe3+ with a correlation coefficient, detection, and quantitation limits 0.998, 1.35 μM and 4.08 μM, respectively. According to the remarkable quenching of the PL intensity of La‐MOF using various concentrations of Fe3+, it was successfully used as a sensor for Fe3+detecting in different water resources (pure and waste) samples. The quenching mechanism was studied and it has a dynamic type and due to efficient energy transfer between the La‐MOF and Fe3+.

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Section: Resultsmentioning

confidence: 95%

A novel nano‐size lanthanum metal–organic framework based on 5‐amino‐isophthalic acid and phenylenediamine: Photoluminescence study and sensing applications

Sheta

El‐Sheikh

Abd-Elzaher

et al. 2019

Applied Organom Chemis

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“…According to Pecsok et al (1976), the carboxylate groups and their salts show two peaks at wave number around 1600–1640 cm −1 and 1400–1450 cm −1 which symbolize the presence of a substituted carboxymethyl. 34 The band at 2920 cm −1 was due to C–H stretching where absorption at 1407 cm −1 reflects C–O–C curvature. The range 1017 cm −1 indicates the C–O stretching vibration.…”

Section: Resultsmentioning

confidence: 99%

“…According to Pecsok et al (1976), the carboxylate groups and their salts show two peaks at wave number around 1600-1640 cm −1 and 1400-1450 cm −1 which symbolize the presence of a substituted carboxymethyl. 34 The band at 2920 cm The FT-IR spectrum of Fe(III)-GA-MOF was shown in (Fig. 6, spectrum 3) in comparison with the FT-IR spectrum of GA (Fig.…”

Section: Characterization Of Fe(iii)-ga-mofmentioning

confidence: 97%

Novel sensor for the determination of CA 15-3 in serum of breast cancer patients based on Fe–gallic acid complex doped in modified cellulose polymer thin films

et al. 2023

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Red Emitting Cerium(III) and Versatile Luminescence Chromaticity of 1D‐Coordination Polymers and Heterobimetallic Ln/AE Pyridylpyrazolate Complexes

Youssef

Becker

Sedykh

et al. 2022

Zeitschrift anorg allge chemie

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Dedicated to the late Professor Rudolf Hoppe on the occasion of his 100 th birthdayTen homoleptic lanthanide containing 1D-coordination polymers, three heterobimetallic lanthanide/alkaline earth complexes as well as two alkaline earth complexes of the formula 1Ln=LaÀ Nd, SmÀ Ho, AE=Ca, Sr, Ba were obtained by reactions of the lanthanide (Ln) and/or the alkaline earth metals (AE) with the ligand 3-(2-pyridyl)pyrazole. Organic melt based and/or solvothermal synthesis results in a redox reaction. The investigated compounds exhibit fair thermal stability up to 400 °C. The Ce 3 + compound exhibits a bright and red 5d-based broad band emission with a maximum at around 640 nm under UV excitation marking an example of a strong reduction of the exited 5d states of Ce(III). The co-doping of the Gd-containing coordination polymers with Eu 3 + and Tb 3 + allows for a shift in the chromaticity from the ion specific 4 f-based emission colors close to white light emission and thus for a versatile tuning of the chromaticity. The co-doping of Eu 3 + with Tb 3 + and vice versa shows metal-to-metal energy transfer (MMET) between 4 f-levels of Tb 3 + and Eu 3 + , which influences the tuning of the emission colour.

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Structural studies of poly[(μ 2 -acetato)(μ 3 -5-aminoisophthalato)diaquacerium(III) monohydrate]: A new three dimensional fluorescent metal-organic framework constructed from dimers of CeO 9 polyhedra with hydrophilic ‘S’ shaped channels

Cited by 19 publications

References 23 publications

A novel nano‐size lanthanum metal–organic framework based on 5‐amino‐isophthalic acid and phenylenediamine: Photoluminescence study and sensing applications

A novel nano‐size lanthanum metal–organic framework based on 5‐amino‐isophthalic acid and phenylenediamine: Photoluminescence study and sensing applications

Novel sensor for the determination of CA 15-3 in serum of breast cancer patients based on Fe–gallic acid complex doped in modified cellulose polymer thin films

Red Emitting Cerium(III) and Versatile Luminescence Chromaticity of 1D‐Coordination Polymers and Heterobimetallic Ln/AE Pyridylpyrazolate Complexes

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