Synthesis, photoluminescence and biological properties of terbium(III) complexes with hydroxyketone and nitrogen containing heterocyclic ligands

Poonam, .; Kumar, Rajesh; Boora, Priti; Khatkar, Anurag; Khatkar, S.P.; Taxak, V.B.

doi:10.1016/j.saa.2015.07.082

Cited by 17 publications

(3 citation statements)

References 27 publications

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“…Interestingly, Bünzli reported that, as of 2014, 75% of all structurally characterized lanthanide complexes had at least one Ln–O bond and 40% had exclusively Ln–O bonds . Terbium is best known for its luminescent properties, which have led to its application in biomedical probes and supramolecular luminescent sensors. , Tuning of these radiative properties has been investigated with a variety of chelators, − including DOTA − and DTPA (Table ). ,,− …”

Section: Terbiummentioning

confidence: 99%

Radioactive Main Group and Rare Earth Metals for Imaging and Therapy

2018

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Radiometals possess an exceptional breadth of decay properties and have been applied to medicine with great success for several decades. The majority of current clinical use involves diagnostic procedures, which use either positron-emission tomography (PET) or single-photon imaging to detect anatomic abnormalities that are difficult to visualize using conventional imaging techniques (e.g., MRI and X-ray). The potential of therapeutic radiometals has more recently been realized and relies on ionizing radiation to induce irreversible DNA damage, resulting in cell death. In both cases, radiopharmaceutical development has been largely geared toward the field of oncology; thus, selective tumor targeting is often essential for efficacious drug use. To this end, the rational design of fourcomponent radiopharmaceuticals has become popularized. This Review introduces fundamental concepts of drug design and applications, with particular emphasis on bifunctional chelators (BFCs), which ensure secure consolidation of the radiometal and targeting vector and are integral for optimal drug performance. Also presented are detailed accounts of production, chelation chemistry, and biological use of selected main group and rare earth radiometals.

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Section: Terbiummentioning

confidence: 99%

Radioactive Main Group and Rare Earth Metals for Imaging and Therapy

2018

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“…were prepared in DMSO. To observe their antibacterial activities, all test samples were incubated at 37 C for 24 h and their antifungal activities against fungal strain such as Candida albicans and Aspergillus avatus were investigated and samples were incubated at 25 C for 7 days except for Aspergillus niger, which was incubated for 48 h at 37 C. [12,13] 2. This assay was performed by taking 0.8-1.5% initial ring stages of culture (P. falciparum) in 200 μL RPMI-1640 and observed against Jaswant Singh-Bhattacharji (JSB) stain 3% by haematocrit and uniformly preserved in 50% RBCs (O + ).…”

Section: Antioxidant Assaysmentioning

confidence: 99%

Designing of emerald terbium (III) ions with β‐ketocarboxylic acid and heterocyclic ancillary ligands for biological and optoelectronic applications

et al. 2021

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A green and highly efficient grinding method was adopted to synthesize emerald terbium complexes with 1-cyclopropyl-6-fluro-4-oxo-7-piperazin-1-ylquinoline-3-carboxylic acid as the main organic ligand and 2,2 0 -bipyridyl, 1,10-phenanthroline, neocuproine, 5,6-dimethyl-1,10-phenanthroline and bathophenanthroline as ancillary ligands. Structural analysis of these complexes was executed via elemental, infrared and 1 H-nuclear magnetic resonance analysis, which confirmed that the ligand coordinated to the metal ion through β-ketone and hydroxyl groups of carboxylic acid.Thermal stability of these complexes was investigated by study of thermogravimetric/derivative thermogravimetric analysis. Photoluminescence properties were investigated by observing emission spectra (400-700 nm), excitation spectra (250-500 nm) and decay time curves for display devices. The emission spectra revealed that an intense peak at 545 nm was observed due to 5 D 4 ! 7 F 5 electronic transition, which is responsible for the emerald colour in synthesized complexes, under 353 nm ultraviolet light excitation. The energy band gap and refractive index were determined, which proclaimed the dormant applications of these complexes in semiconductors. Commission Internationale de l'éclairage colour coordinates confirmed that the emerald emission of these complexes lies in the green region. Furthermore, antioxidant, antimicrobial and antimalarial assays of these complexes were also investigated, which confirmed that these complexes are potent for antioxidant, antimicrobial and antimalarial activities.

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“…[40][41][42] The antioxidant activities of the ligand HL and its Nd(III) (1) and Sm(III) (2) complexes have been substantially investigated. Fig.…”

Section: Antioxidant Activities Studymentioning

confidence: 99%

Lanthanide(III) complexes with tridentate Schiff base ligand, antioxidant activity and X-ray crystal structures of the Nd(III) and Sm(III) complexes

Gueye¹,

Dieng²,

Thiam³

et al. 2017

S.Afr.j.chem.

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The tridentate N 4 -type Schiff base was synthesized from the condensation reaction of 2-hydrazinopyridine and pyridine-2-carbaldehyde. Neodymium and Samarium complexes were isolated when the corresponding nitrate salt was added to the solution of the ligand. The isolated compounds were characterized by elemental analyses, IR study, room temperature magnetic measurements and single X-ray crystal diffraction of the two crystals. Both complexes crystallize in the monoclinic system with space group P21/c. KEYWORDSLanthanide complexes, hydrazino, antioxidant activity, X-ray structure.

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Synthesis, photoluminescence and biological properties of terbium(III) complexes with hydroxyketone and nitrogen containing heterocyclic ligands

Cited by 17 publications

References 27 publications

Radioactive Main Group and Rare Earth Metals for Imaging and Therapy

Radioactive Main Group and Rare Earth Metals for Imaging and Therapy

Designing of emerald terbium (III) ions with β‐ketocarboxylic acid and heterocyclic ancillary ligands for biological and optoelectronic applications

Lanthanide(III) complexes with tridentate Schiff base ligand, antioxidant activity and X-ray crystal structures of the Nd(III) and Sm(III) complexes

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