Hybrid Inorganic–Organic Phosphorus(V) Dihydrazone as Colorimetric and Fluorometric Probe for the Detection of Fe2+ and Zn2+ Cations: Synthesis, Physicochemical, Photophysical, NMR, Cyclic Voltammetry, and DFT Studies DOI Open Access
M. Venkata Subbaiah,

Kiran K. Mandrekar,

A. Ahmed

и другие.

Applied Organometallic Chemistry, Год журнала: 2025, Номер 39(4)

Опубликована: Март 3, 2025

ABSTRACT A new hybrid inorganic–organic probe, phenylphosphonothioic salicylic dihydrazone (PPSD), was designed, synthesized, and characterized as Schiff base via simple condensation reaction using two units of salicylaldehyde with dihydrazide (PPDH). In the colorimetric studies, PPSD in methanol medium responded probe to detect cations iron (Fe 2+ ) zinc (Zn ). During attempts venture series , Co Ni Ca Li + Zn Cu Na Al 3+ Ce ), detection observed specifically Fe cations. Herein, colorless identified turn into dark blue cations, whereas showed fluorescent green under UV light. To validate these detections, were studied by UV‐vis photoluminescence. absorbance analysis performed for while found be supported photoluminescence data. Based on fluorescence titration limits (limit [LOD]) (9.7789 × 10 −5 M) (9.6340 established, respectively. The binding constants determined 7.92 4 M −1 2.76 8 from Benesi–Hildebrand (B‐H) equation. Consequently, a quantum yield (ɸ = 0.038), which increased approximately 11‐fold 0.417) due its interaction FTIR, multinuclear NMR ( 1 H, 13 C, 31 P), photoluminescence, UV‐vis, titration, HRSEM, EDS, cyclic voltammetry, DFT studies used characterize structures, sensing abilities /Zn

Язык: Английский

Hybrid Inorganic–Organic Phosphorus(V) Dihydrazone as Colorimetric and Fluorometric Probe for the Detection of Fe2+ and Zn2+ Cations: Synthesis, Physicochemical, Photophysical, NMR, Cyclic Voltammetry, and DFT Studies DOI Open Access
M. Venkata Subbaiah,

Kiran K. Mandrekar,

A. Ahmed

и другие.

Applied Organometallic Chemistry, Год журнала: 2025, Номер 39(4)

Опубликована: Март 3, 2025

ABSTRACT A new hybrid inorganic–organic probe, phenylphosphonothioic salicylic dihydrazone (PPSD), was designed, synthesized, and characterized as Schiff base via simple condensation reaction using two units of salicylaldehyde with dihydrazide (PPDH). In the colorimetric studies, PPSD in methanol medium responded probe to detect cations iron (Fe 2+ ) zinc (Zn ). During attempts venture series , Co Ni Ca Li + Zn Cu Na Al 3+ Ce ), detection observed specifically Fe cations. Herein, colorless identified turn into dark blue cations, whereas showed fluorescent green under UV light. To validate these detections, were studied by UV‐vis photoluminescence. absorbance analysis performed for while found be supported photoluminescence data. Based on fluorescence titration limits (limit [LOD]) (9.7789 × 10 −5 M) (9.6340 established, respectively. The binding constants determined 7.92 4 M −1 2.76 8 from Benesi–Hildebrand (B‐H) equation. Consequently, a quantum yield (ɸ = 0.038), which increased approximately 11‐fold 0.417) due its interaction FTIR, multinuclear NMR ( 1 H, 13 C, 31 P), photoluminescence, UV‐vis, titration, HRSEM, EDS, cyclic voltammetry, DFT studies used characterize structures, sensing abilities /Zn

Язык: Английский

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