Enhancing colorimetric sensing efficiency of dipicolinic and phthalic acid through hydrogen bonding toward metal ions in aqueous medium

Chemical Papers, Год журнала: 2025, Номер unknown

Опубликована: Янв. 4, 2025

Язык: Английский

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Recent Progress in Organic Cocrystal‐Based Superlattices and Their Optoelectronic Applications

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 16, 2025

Abstract The utilization of organic cocrystal‐based superlattice materials (OCSMs) in the field optoelectronics is experiencing significant advancements attributable to their accurate stoichiometric coefficient and distinctive supramolecular self‐assembly structures. Herein, an exhaustive review on development OCSMs reported over past few years presented, with a primary focus following major aspects. First, emerging nanostructures primarily consist hydrogen‐bonded frameworks (HOFs) halogen‐bonded (XOFs), innovative cocrystal heterostructures (OHSs), nanomeshes (OMSs). Further, comprehensive summary provided investigation crystals film preparation techniques for OCSMs, which encompasses liquid‐phase growth, physical‐vapor‐transfer methods, solid‐phase processes. characteristics tunable fluorescence emission rapid stimulus response exhibited by these as well applications memristors, photothermal conversion imaging, sensors, FETs, spin devices, are also elucidated. mechanisms underlying charge transfer effects, π–π interactions, hydrogen bonds, halogen bonds finally analyzed provide valuable insights into material design promising applications.

Язык: Английский

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Thermally stable strongly fluorescent multi-stimuli responsive carbazole zwitterionic fluorophores: Alkyl chain length dependent thermofluorochromism and latent fingerprinting

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2024, Номер 326, С. 125210 - 125210

Опубликована: Сен. 24, 2024

Язык: Английский

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Combined Experimental and Theoretical Investigations of a Photoswitching Dimorphic Chlorinated Schiff Base

The Journal of Physical Chemistry C, Год журнала: 2024, Номер 128(44), С. 18901 - 18912

Опубликована: Окт. 29, 2024

Polymorphism in organic compounds is a fascinating phenomenon with diverse applications. Rational development of polymorphic forms challenging and demands more investigations. Subtle variations functional groups can lead to variation intra- as well intermolecular interactions promote polymorphism. We report chlorinated sulfonated Anil 1 its crystallization two forms, 1a 1b, which are conformational polymorphs. Structural studies reveal polymorphism arises due rotation about the C═N–C═C bond subsequent prototropism, planar form exists keto while twisted 1b an enol tautomer. Color attributed difference extent molecular conjugation, emission switching packing. Density theory (DFT) have been carried out understand packing explain optical properties. To further effect nature halogen atoms on electronic properties, bromo iodo derivatives reported studied. Aggregation-induced (AIE) sensitivity acids, nitroaromatics like picric acid, heavy metal ions Hg(II) for

Язык: Английский

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Multistimuli-Responsive Triphenylphosphine Anils: Development of a High-Contrast Wearable Ammonia Sensor

ACS Applied Optical Materials, Год журнала: 2024, Номер 2(11), С. 2229 - 2240

Опубликована: Окт. 30, 2024

Stimuli-responsive organic materials with configurable luminescence are an important class of potential use in sensing, data security, and display devices. Emergent vapofluorochromic materials, the ability to sense detect, significant for real-time applications across sectors. Specific market demand varies based on technological advancements, regulatory changes, industry trends, making discovery such advanced essential. Aiming design engineering solid-state emission, we report synthesis characterization three simple Schiff bases 1–3, nonplanar propeller triphenylphosphine functionality one end functional group variation other end. Contrarily, molecular solids 1 2 undergo emission quenching, while feeble 3 (λmax 573 nm, ϕ 16%, τ 3.118 ns) arises due H-aggregate formation. Solid-state is further validated by aggregation-induced thin-film studies. Existing as zwitterionic solids, intramolecular proton transfer acidic proton, solid forms respond base exposures observed during thin film studies, detailed vapochromic studies establish reversible switching tuning 3. Working a demonstrative wearable sensor detection ammonia fumes reported. Electrochemical, crystallographic, computational, mechanochromic have been carried out understand structure–function relationship.

Язык: Английский

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Structural insights and photophysical properties of mononuclear and pentanuclear Zn(II) acetate complexes with pyridyl-based thiazolyl-hydrazones

Polyhedron, Год журнала: 2024, Номер 262, С. 117162 - 117162

Опубликована: Июль 27, 2024

Язык: Английский

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Self-reversible mechanofluorochromic AIEgens with tunable solid-state fluorescence: effect of acceptor and intermolecular interactions

CrystEngComm, Год журнала: 2024, Номер 26(37), С. 5241 - 5248

Опубликована: Янв. 1, 2024

The intermolecular interacting functionality in the carbazole-based π-conjugated fluorophores controlled mechano-responsive fluorescence switching.

Язык: Английский

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Nile red‐based AIEgen for highly fluorescent polymer particles and its application in light‐scattering fluorescent films

Smart Molecules, Год журнала: 2024, Номер unknown

Опубликована: Сен. 28, 2024

Abstract Organic luminophores with superior solid‐state luminescence are urgently required in various fields, such as lighting, display, sensing, and solar energy conversion. However, to achieve their highly efficient still remains a challenge. Herein, newly designed Nile red derivative, Nile‐DPA‐VB, is successfully obtained exhibit aggregation‐induced emission characteristics the photoluminescent quantum yield (PLQY) of 11.45%. Such PLQY could be further promoted 53.45% when Nile‐DPA‐VB polymerized undergoing precipitation polymerization process, where confined aggregation microenvironment severely restricts intramolecular motions Nile‐DPA‐VB. Remarkably, ultrasensitive polarity steric effect, enabling real‐time monitoring evolution for polymerization. The microphase separation dynamic hardening nucleation growth processes visually demonstrated, which contribute dominantly high‐efficiency luminescence. Finally, by doping as‐prepared fluorescent polymeric particles into polymethyl methacrylate, functional films high haze achieved show potential lighting. These findings clearly demonstrate significant role constructing luminescent materials practice.

Язык: Английский

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The Supramolecular Structures and Photo-Physical Properties Modulated by Spacer Lengths in 1,ω-Bis(isoquinoline)Alkane/(Bi4I16)4− Hybrids

Journal of Chemical Crystallography, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 29, 2024

Язык: Английский

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Halogenated Anils of Sulfanilamide: Structural, Hirshfeld, and Optical Studies

ChemistrySelect, Год журнала: 2024, Номер 9(46)

Опубликована: Дек. 1, 2024

Abstract Chemistry of functional organic materials is interesting in terms design and applications. Halogen functionalization molecules intriguing as besides affecting the intramolecular electronic properties, their presence triggers intermolecular halogen bonds, both packing bulk properties. We report rationally substituted halogenated anils sulfanilamide 1–3 to understand influence halogens on molecular The products 1 2 exhibit thermal stability beyond 300 ⁰C, whereas 3 undergoes early weight loss, indicating lattice solvent. phase purity has been confirmed with powder X‐ray analyses. Products have further characterized through single‐crystal diffraction studies crystal support from Hirshfeld studies. X⋯O interactions are predominant significant interhalogen X⋯X observed only . feebly emissive solid‐state. Interestingly, thin film forms undergo emission quenching, exhibits augmented emission. AIE active anil used for sensing explosive aromatic compound like picric acid.

Язык: Английский

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