Luminescence features of mononuclear Sm(III) complexes with heterocyclic ligands

Chauhan, Archana; Saini, Sangeeta; Kumar, Ramesh; Kumar, Dinesh; Langyan, Ritu

doi:10.1016/j.ijleo.2021.166500

Cited by 14 publications

(3 citation statements)

References 42 publications

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“…The CIE coordinates calculated for Sm1 and Sm2 are found within the orange‐red spectral range. In the powdered state, these coordinates exhibit a close resemblance to the values specified by European Broadcasting Union (EBU), which are x = 0.64, 0.33, and Society of Motion Picture and Television Engineers (SMPTE), which are x = 0.63, 0.34 [62]. These coordinates are also similar to those of the National Television System Committee (NTSC) standard, which has coordinates x = 0.67 and y = 0.33 [47].…”

Section: Resultsmentioning

confidence: 82%

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Exploring the role of neutral ligands in modulating the photoluminescence of samarium complexes with 1,1,1,5,5,5‐hexafluoro‐2,4‐pentanedione

Malik,

Jakhar,

Singh

et al. 2024

Luminescence

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Four eight‐coordinated luminescent samarium complexes of type [Sm(hfpd)3L2] and [Sm(hfpd)3L′] [where hfpd = 1,1,1,5,5,5‐Hexafluoro‐2,4‐pentanedione L = tri‐octyl‐phosphine oxide (TOPO) and L′ = 1,10‐phenanthroline (phen), neocuproine (neoc) and bathocuproine (bathoc) were synthesized via a stoichiometrically controlled approach. This allows for precise control over the stoichiometry of the complexes, leading to reproducible properties. This investigation focuses on understanding the impact of secondary ligands on the luminescent properties of these complexes. Infrared (IR) spectra provided information about the molecular structures, whereas 1H and 13C nuclear magnetic resonance (NMR) spectra confirmed these structural details along with the coordination of ligands to trivalent Sm ion. The UV–vis spectra revealed the molar absorption coefficient and absorption bands associated with the hfpd ligand and photoluminescence (PL) spectroscopy demonstrated intense orange‐red emission (648 nm relative to 4G5/2 → 6H9/2) from the complexes. The Commission Internationale de l'Éclairage (CIE) triangles indicated that the complexes emitted warm orange red light with color coordinates (x, y) ranging from (0.62, 0.36) to (0.40, 0.27). The investigation of the band gap as well as color parameters confirms the utility of these complexes in displays and LEDs.

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Section: Resultsmentioning

confidence: 82%

“…In the above equation, values can be calculated using Equation (8). These values can be categorized into four quality levels: excellent (75-100), good (65)(66)(67)(68)(69)(70)(71)(72)(73)(74)(75), fair (55)(56)(57)(58)(59)(60)(61)(62)(63)(64)(65), and poor (0-55) [70,71].…”

Section: Color Parametersmentioning

confidence: 99%

Exploring the role of neutral ligands in modulating the photoluminescence of samarium complexes with 1,1,1,5,5,5‐hexafluoro‐2,4‐pentanedione

Malik,

Jakhar,

Singh

et al. 2024

Luminescence

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“…e UV-vis data were used to evaluate the band gap energy of the catalysts using Tauc's plot method (equation ( 2)) [28].…”

Section: Uv-visible Spectroscopymentioning

confidence: 99%

Synthesis, Characterization, and Photocatalytic Activity of Mixed-Ligand Cerium(III) and Bismuth(III) Complexes

Latif

Saeed

Imran

et al. 2022

Journal of Chemistry

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Two ternary complexes (Ce(sal)3(phen)2) (1) and (Bi(sal)3(phen)2) (2) with salicylic acid (sal) and 1,10-phenanthroline (phen) have been synthesized and characterized by analytical techniques such as UV-visible spectroscopy, FT-IR spectroscopy, PXRD, and SEM. The UV-visible study indicated the shifting of peak positions of metal complexes compared with the individual ligands whereas FT-IR analysis demonstrated that the metals were successfully coordinated with different functional groups of the ligands. The photocatalytic properties of prepared complexes were evaluated against Congo red dye as a model pollutant under ultraviolet and sunlight irradiation. The degradation efficiency of complex (2) was greater than that of complex (1). The results indicated that the investigated complexes can be employed as potential candidates for photocatalytic breakdown of synthetic dyes and can be safely recommended for environmental remediation.

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Tuning the Photometric Properties of Ternary Sm3+ Complexes Involving Mixed-Ligands

2022

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Luminescence features of mononuclear Sm(III) complexes with heterocyclic ligands

Cited by 14 publications

References 42 publications

Exploring the role of neutral ligands in modulating the photoluminescence of samarium complexes with 1,1,1,5,5,5‐hexafluoro‐2,4‐pentanedione

Exploring the role of neutral ligands in modulating the photoluminescence of samarium complexes with 1,1,1,5,5,5‐hexafluoro‐2,4‐pentanedione

Synthesis, Characterization, and Photocatalytic Activity of Mixed-Ligand Cerium(III) and Bismuth(III) Complexes

Tuning the Photometric Properties of Ternary Sm3+ Complexes Involving Mixed-Ligands

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