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Chen SH, Cao XY, Li HQ, Deng SW, Jiang K, Shen Q, Li H, Wang ZY. Fluorinated benzothiadiazole fluorescent probe based on ICT mechanism for highly selectivity and sensitive detection of fluoride ion. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 319:124573. [PMID: 38830328 DOI: 10.1016/j.saa.2024.124573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 04/28/2024] [Accepted: 05/29/2024] [Indexed: 06/05/2024]
Abstract
Excessive fluoride ion (F-) in the environment can affect health and even endanger life when ingested by the human body. However, most fluoride probes have the disadvantages of low sensitivity and long detection time. Herein, fluorescent probe 3a is successfully synthesized by linking two acetylenyltrimethylsilyl groups at both ends of the fluorinated benzothiadiazole core. After the addition of F- to 3a, the emission at 436 nm is significantly quenched and slightly blue-shifted. It is confirmed by electrospray ionization high-resolution mass spectrometry (ESI-HRMS) and density functional theory calculations (DFT) that these changes are due to the F- triggered Si-C bond cleavage and the subsequent inactivation of intramolecular charge transfer (ICT). The detection limit and response time of probe 3a for F- are 10-8 mol/L and 25 s, respectively. Importantly, fluorescent material 3a can be processed into portable test tools for the visual detection of fluoride ion.
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Affiliation(s)
- Si-Hong Chen
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou 510006, PR China
| | - Xi-Ying Cao
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou 510006, PR China
| | - Huan-Qing Li
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou 510006, PR China
| | - Si-Wei Deng
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou 510006, PR China
| | - Kai Jiang
- Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China.
| | - Qing Shen
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou 510006, PR China
| | - Huang Li
- School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, PR China
| | - Zhao-Yang Wang
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou 510006, PR China.
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2
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Jindal S, Wang JX, Wang Y, Thomas S, Mallick A, Bonneau M, Bhatt PM, Alkhazragi O, Nadinov I, Ng TK, Shekhah O, Alshareef HN, Ooi BS, Mohammed OF, Eddaoudi M. Aggregation Induced Emission-Based Covalent Organic Frameworks for High-Performance Optical Wireless Communication. J Am Chem Soc 2024; 146:25536-25543. [PMID: 39225332 PMCID: PMC11421012 DOI: 10.1021/jacs.4c05812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/26/2024] [Accepted: 06/28/2024] [Indexed: 09/04/2024]
Abstract
Here, we report the first utilization of covalent organic frameworks (COFs) in optical wireless communication (OWC) applications. In the solid form, aggregation-induced emission (AIE) luminogen often shows promising emissive characteristics that augment radiative decays and improve fluorescence. We have synthesized an AIE-COF through the Knoevenagel condensation reaction by taking advantage of the ability to carefully design and alter the COF structure by integrating an AIE luminogen with linear building blocks. The synthesized AIE-COF exhibited a high solid-state photoluminescence quantum yield (∼39%) and a short photoluminescence lifetime (∼1 ns), crucial for achieving modulation bandwidth for high-speed OWC applications. For comparison, we constructed an aggregation-caused quenching based COF, showing a similar lifetime but almost insignificant quantum yield. The orthogonal frequency-division multiplexing modulation strategy employed by the AIE-COF demonstrates remarkable high-rate data transmission, with a wide -3 dB modulation bandwidth of nearly 200 MHz and achieving high net data rates of 825 Mb/s, outperforming traditional materials. These results open new avenues for the ability to design and finetune new COF materials for their utilization as color converters in developing cutting-edge OWC components, enabling faster and more efficient data transfer.
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Affiliation(s)
- Swati Jindal
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Jian-Xin Wang
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Yue Wang
- Photonics
Laboratory, Division of Computer, Electrical, and Mathematical Sciences
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Saudi
Arabia
| | - Simil Thomas
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Arijit Mallick
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Mickaele Bonneau
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Prashant M. Bhatt
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Omar Alkhazragi
- Photonics
Laboratory, Division of Computer, Electrical, and Mathematical Sciences
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Saudi
Arabia
| | - Issatay Nadinov
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Tien Khee Ng
- Photonics
Laboratory, Division of Computer, Electrical, and Mathematical Sciences
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Saudi
Arabia
| | - Osama Shekhah
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Husam N. Alshareef
- Materials
Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Boon S. Ooi
- Photonics
Laboratory, Division of Computer, Electrical, and Mathematical Sciences
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Saudi
Arabia
| | - Omar F. Mohammed
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Saudi Arabia
- KAUST
Catalysis Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Mohamed Eddaoudi
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Saudi Arabia
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3
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Sahoo R, Pramanik B, Mondal S, Das MC. A Highly Chemically Robust 3D Interpenetrated MOF Heterogeneous Catalyst for the Synthesis of Hantzsch 1,4-Dihydropyridines and Drug Molecules. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309281. [PMID: 38191986 DOI: 10.1002/smll.202309281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 12/26/2023] [Indexed: 01/10/2024]
Abstract
Metal-organic frameworks (MOFs) have attracted immense attention as efficient heterogeneous catalysts over other solid catalysts, however, their chemical environment instability often limits their catalytic potential. Herein, utilizing a flexible unexplored tetra-acid ligand and employing the mixed ligand approach, a 3D interpenetrated robust framework is strategically developed, IITKGP-51 (IITKGP stands for Indian Institute of Technology Kharagpur), which retained its crystallinity over a wide range of pH solution (4-12). Having ample open metal sites (OMSs), IITKGP-51 is explored as a heterogeneous catalyst in one-pot Hantzsch condensation reaction, with low catalyst loading for a broad range of substrates. The synthesis of drug molecules remains one of the most significant and emergent areas of organic and medicinal chemistry. Considering such practical utility, biologically important Nemadipine B and Nifedipine drug molecules (calcium channel protein inhibitor) are synthesized for the first time by using this catalyst and fully characterized via SC-XRD and other spectroscopic methods. This report inaugurates the usage of a MOF material as a catalyst for the synthesis of drug molecules.
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Affiliation(s)
- Rupam Sahoo
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Bikram Pramanik
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Supriya Mondal
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Madhab C Das
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
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4
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Zhu X, Wang Y, Nadinov I, Thomas S, Gutiérrez-Arzaluz L, He T, Wang JX, Alkhazragi O, Ng TK, Bakr OM, Alshareef HN, Ooi BS, Mohammed OF. Leveraging Intermolecular Charge Transfer for High-Speed Optical Wireless Communication. J Phys Chem Lett 2024; 15:2988-2994. [PMID: 38457267 PMCID: PMC10961838 DOI: 10.1021/acs.jpclett.4c00268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/26/2024] [Accepted: 03/05/2024] [Indexed: 03/10/2024]
Abstract
Intermolecular charge transfer (CT) complexes have emerged as versatile platforms with customizable optical properties that play a pivotal role in achieving tunable photoresponsive materials. In this study, we introduce an innovative approach for enhancing the modulation bandwidth and net data rates in optical wireless communications (OWCs) by manipulating combinations of monomeric molecules within intermolecular CT complexes. Concurrently, we extensively investigate the intermolecular charge transfer mechanism through diverse steady-state and ultrafast time-resolved spectral techniques in the mid-infrared range complemented by theoretical calculations using density functional theory. These intermolecular CT complexes empower precise control over the -3 dB bandwidth and net data rates in OWC applications. The resulting color converters exhibit promising performance, achieving a net data rate of ∼100 Mb/s, outperforming conventional materials commonly used in the manufacture of OWC devices. This research underscores the substantial potential of engineering intermolecular charge transfer complexes as an ongoing progression and commercialization within the OWC. This carries profound implications for future initiatives in high-speed and secure data transmission, paving the way for promising endeavors in this area.
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Affiliation(s)
- Xin Zhu
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Yue Wang
- Photonics
Laboratory, Division of Computer, Electrical, and Mathematical Sciences
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Issatay Nadinov
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
- Materials
Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Simil Thomas
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Luis Gutiérrez-Arzaluz
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
- KAUST
Catalysis Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Tengyue He
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Jian-Xin Wang
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Omar Alkhazragi
- Photonics
Laboratory, Division of Computer, Electrical, and Mathematical Sciences
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Tien Khee Ng
- Photonics
Laboratory, Division of Computer, Electrical, and Mathematical Sciences
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Osman M. Bakr
- KAUST
Catalysis Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Husam N. Alshareef
- Materials
Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Boon S. Ooi
- Photonics
Laboratory, Division of Computer, Electrical, and Mathematical Sciences
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Omar F. Mohammed
- Advanced
Membranes and Porous Materials Center, Division of Physical Science
and Engineering, King Abdullah University
of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
- KAUST
Catalysis Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
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5
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Alsam AA. Comparative Investigation of Ultrafast Excited-State Electron Transfer in Both Polyfluorene-Graphene Carboxylate and Polyfluorene-DCB Interfaces. Molecules 2024; 29:634. [PMID: 38338379 PMCID: PMC10856661 DOI: 10.3390/molecules29030634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/15/2024] [Accepted: 01/20/2024] [Indexed: 02/12/2024] Open
Abstract
The Photophysical properties, such as fluorescence quenching, and photoexcitation dynamics of bimolecular non-covalent systems consisting of cationic poly[(9,9-di(3,3'-N,N'-trimethyl-ammonium) propyl fluorenyl-2,7-diyl)-alt-co-(9,9-dioctyl-fluorenyl-2,7-diyl)] diiodide salt (PFN) and anionic graphene carboxylate (GC) have been discovered for the first time via steady-state and time-resolved femtosecond transient absorption (TA) spectroscopy with broadband capabilities. The steady-state fluorescence of PFN is quenched with high efficiency by the GC acceptor. Fluorescence lifetime measurements reveal that the quenching mechanism of PFN by GC is static. Here, the quenching mechanisms are well proven via the TA spectra of PFN/GC systems. For PFN/GC systems, the photo electron transfer (PET) and charge recombination (CR) processes are ultrafast (within a few tens of ps) compared to static interactions, whereas for PFN/1,4-dicyanobenzene DCB systems, the PET takes place in a few hundreds of ps (217.50 ps), suggesting a diffusion-controlled PET process. In the latter case, the PFN+•-DCB-• radical ion pairs as the result of the PET from the PFN to DCB are clearly resolved, and they are long-lived. The slow CR process (in 30 ns time scales) suggests that PFN+• and DCB-• may already form separated radical ion pairs through the charge separation (CS) process, which recombine back to the initial state with a characteristic time constant of 30 ns. The advantage of the present positively charged polyfluorene used in this work is the control over the electrostatic interactions and electron transfers in non-covalent polyfluorene/quencher systems in DMSO solution.
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Affiliation(s)
- Amani A Alsam
- Department of Physical Science, College of Science, Jazan University, P.O. Box. 114, Jazan 45142, Saudi Arabia
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6
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Wang Y, Wang JX, Alkhazragi O, Gutiérrez-Arzaluz L, Zhang H, Kang CH, Ng TK, Bakr OM, Mohammed OF, Ooi BS. Multifunctional difluoroboron β-diketonate-based luminescent receiver for a high-speed underwater wireless optical communication system. OPTICS EXPRESS 2023; 31:32516-32528. [PMID: 37859053 DOI: 10.1364/oe.500330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 09/03/2023] [Indexed: 10/21/2023]
Abstract
The last decade has witnessed considerable progress in underwater wireless optical communication in complex environments, particularly in exploring the deep sea. However, it is difficult to maintain a precise point-to-point reception at all times due to severe turbulence in actual situations. To facilitate efficient data transmission, the color-conversion technique offers a paradigm shift in large-area and omnidirectional light detection, which can effectively alleviate the étendue limit by decoupling the field of view and optical gain. In this work, we investigated a series of difluoroboron β-diketonate fluorophores by measuring their photophysical properties and optical wireless communication performances. The emission colors were tuned from blue to green, and >0.5 Gb/s data transmission was achieved with individual color channel in free space by implementing an orthogonal frequency-division multiplexing (OFDM) modulation scheme. In the underwater experiment, the fluorophore with the highest transmission speed was fabricated into a 4×4 cm2 luminescent concentrator, with the concentrated emission from the edges coupled with an optical fiber array, for large-area photodetection and optical beam tracking. The net data rates of 130 Mb/s and 217 Mb/s were achieved based on nonreturn- to-zero on-off keying and OFDM modulation schemes, respectively. Further, the same device was used to demonstrate the linear light beam tracking function with high accuracy, which is beneficial for sustaining a reliable and stable connection in a dynamic, turbulent underwater environment.
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