Zinc(II) 2D Coordination Polymer With Terephthalate and 4,6‐Bis(Imidazol‐1‐yl)‐2,1,3‐Benzoxadiazole Linkers as a Selective Luminescent Probe for Gallium(III) Cations

Applied Organometallic Chemistry, Год журнала: 2025, Номер 39(3)

Опубликована: Фев. 26, 2025

ABSTRACT A two‐dimensional (2D) zinc(II) coordination polymer CP‐1 , [Zn(im 2 bod)(bdc)] n (im bod = 4,6‐bis(imidazol‐1‐yl)‐2,1,3‐benzoxadiazole, bdc 2− 1,4‐benzenedicarboxylate), was synthesized and fully characterized. crystallizes in the monoclinic crystal system, space group P 1 /n. Zn 2+ ions adopt a four‐coordinated distorted tetrahedral geometry. The structure of comprises layer consisting cations connected by im ligands. adjutant layers participate π‐π stacking interactions via benzene 2,1,3‐benzoxadiazole rings. demonstrated blue emission with maximum at 490 nm photoluminescence quantum yield 24%. Luminescent sensing properties aqueous suspension toward metal were evaluated, selective quenching response observed Ga 3+ limit detection 10 μM.

Язык: Английский

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2,1,3-Benzoxadiazole-based luminescent metal-organic coordination polymer for sensitive detection of dihydrogen phosphate anion and trivalent metal cations

Optical Materials, Год журнала: 2025, Номер unknown, С. 116779 - 116779

Опубликована: Фев. 1, 2025

Язык: Английский

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Lanthanum(III) Coordination Polymer Decorated With 2,1,3‐Benzoxadiazole Units for Sensitive Luminescent Recognition of Sulfate Anion

Applied Organometallic Chemistry, Год журнала: 2025, Номер 39(3)

Опубликована: Фев. 21, 2025

ABSTRACT One‐dimensional coordination polymer La‐CP , {[La(H 2 O) (HL O ) (L )]·H O} n containing a new luminescent ligand 4,7‐di(4‐carboxypyrazol‐1‐yl)‐2,1,3‐benzoxadiazole (H L was synthesized. Upon excitation at 400 nm, the compound shows strong emission with maximum 550 nm high photoluminescence quantum yield of 43%. demonstrates sensing properties toward aluminum and gallium cations, as well dihydrogen phosphate sulfate anions through enhancement response. The limits detection were 0.42, 0.70, 0.37, 0.40 μM, respectively. is first example sensor for anion among all types polymers. uptake analytes under conditions evaluated, absorption result such proposed probable response mechanism.

Язык: Английский

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Molecular Switches Guided by a Reversible Access to Room-Temperature Phosphorescence and ESIPT Fluorescence

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 2, 2025

This work contributes to luminescent molecular switches featuring several emission pathways, which can be activated by external stimuli. We designed Zn complexes with phenylbenzothiazole-based α-aminomethylphosphine oxide (L) and isolated them as crystalline phases, α-[ZnL2Cl2], [ZnL(EtOAc)Cl2], [ZnL2Cl2]·1.5CH2Cl2, [ZnL2Cl2]·1.5CHCl3. They feature an intramolecular hydrogen bond of medium strength, capable excited-state proton transfer (ESIPT), well able for intersystem crossing between singlet triplet states. Since neither these processes is predominant, one or the other occur depending on a slight change in geometry. The phases reveal red-colored ESIPT fluorescence, while metastable amorphous phase β-[ZnL2Cl2] similar structure coordination center reveals yellow-colored room-temperature phosphorescence. Combined experimental quantum-chemical TD-DFT study clarified dual behavior polymorphs α-[ZnL2Cl2] β-[ZnL2Cl2], attributed high dependence probability geometry phenylbenzothiazole moiety. reversible transition, accompanied mechanism (ESIPT fluorescence vs phosphorescence), manipulated fuming CHCl3 Et2O, respectively. have demonstrated good adhesive properties polymer-free film toward glass plastic, naked-eye color response easy recovery CHCl3.

Язык: Английский

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Zinc Metal-Organic Coordination Polymer with 4,7-di(1,2,4-triazol-1-yl)-2,1,3-Benzothiadiazole and 1,4-Naphthalene Dicarboxylic Acid: Luminescent Properties and Guest–Host Charge Transfer

Journal of Structural Chemistry, Год журнала: 2024, Номер 65(12), С. 2567 - 2578

Опубликована: Дек. 1, 2024

Язык: Английский

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Photocatalytic and Photoluminescence Studies of a Gel-Grown Metal-Organic Framework of Ba(II) with 1-5-Naphthalenedisulfonic Acid

Russian Journal of Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

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A new 2D Zn(II)-based coordination polymer as highly sensitive selective fluorescent probe for of glutathione

Inorganica Chimica Acta, Год журнала: 2025, Номер unknown, С. 122718 - 122718

Опубликована: Апрель 1, 2025

Язык: Английский

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