1
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Zhao M, Ren F, Zhou Y. Construction of Boron Difluoride Complexes with Asymmetric N,N'-Bidentate Ligands. Chemistry 2024; 30:e202401784. [PMID: 38866701 DOI: 10.1002/chem.202401784] [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: 05/07/2024] [Revised: 05/30/2024] [Accepted: 06/12/2024] [Indexed: 06/14/2024]
Abstract
Boron difluoride (BF2) complexes with asymmetrical N,N'-bidentate ligands have received increasing attention due to their fascinating properties and broad applications. They are generally constructed in two steps: ligand formation, followed by boron complexation. This review focuses on categorizing these BF2 complexes based on the key synthetic strategies that have been applied in the ligand formation steps. The post-functionalization, properties and applications of different types of BF2 complexes are presented. Their challenges and opportunities are also discussed. This should help the future rational design and synthesis of BF2 complexes with intriguing properties and practical applications.
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Affiliation(s)
- Mengna Zhao
- College of Life Science, China Jiliang University, Hangzhou, Zhejiang, China
| | - Fangqin Ren
- College of Life Science, China Jiliang University, Hangzhou, Zhejiang, China
| | - Yifeng Zhou
- College of Life Science, China Jiliang University, Hangzhou, Zhejiang, China
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2
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Milkovich SK, Buguis FL, Boyle PD, Gilroy JB. Pnictogen-Rich Heterocycles Derived from a Phosphadiazonium Cation. Chemistry 2024; 30:e202400569. [PMID: 38393539 DOI: 10.1002/chem.202400569] [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: 02/21/2024] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 02/25/2024]
Abstract
Heterocycles that pair main group elements and nitrogen are extremely important within the π-conjugated heterocycles research community. Compared to the vast number of boron-nitrogen heterocycles, those that include phosphorus are less common. Furthermore, the use of phosphorus-nitrogen triple bonds of any type to prepare such compounds is unprecedented. Here, we pair pyridyl hydrazonide ligands with phosphadiazonium cations and demonstrate that the chelated Mes*NP group is directly implicated in the photophysical and redox properties observed for the resulting heterocycles. In doing so, we introduce a novel building block for the production of phosphorus-containing heterocycles that could find use in small molecule activation and catalysis or as the functional component of emerging organic electronics.
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Affiliation(s)
- Shaun K Milkovich
- Department of Chemistry, The University of Western Ontario (Western University), 1151 Richmond St. N., London, ON, N6A 5B7, Canada
| | - Francis L Buguis
- Department of Chemistry, The University of Western Ontario (Western University), 1151 Richmond St. N., London, ON, N6A 5B7, Canada
| | - Paul D Boyle
- Department of Chemistry, The University of Western Ontario (Western University), 1151 Richmond St. N., London, ON, N6A 5B7, Canada
| | - Joe B Gilroy
- Department of Chemistry, The University of Western Ontario (Western University), 1151 Richmond St. N., London, ON, N6A 5B7, Canada
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3
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Qi Q, Huang S, Liu X, Aprahamian I. 1,2-BF 2 Shift and Photoisomerization Induced Multichromatic Response. J Am Chem Soc 2024; 146:6471-6475. [PMID: 38428039 DOI: 10.1021/jacs.4c00592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Abstract
Adaptive materials that exhibit a multichromatic response as a function of applied stimulus are highly desirable, as they can result in applications ranging from smart surfaces to anticounterfeit devices. Here we report on such a system based on an intriguing thermal 1,2-BF2 shift that transforms a visible-light-activated azo-BF2 photoswitch into a BF2-hydrazone fluorophore (BODIHY) in both solution and the solid-state. Structure-property analysis, in conjunction with DFT calculations, reveals that the shift is catalyzed by the spatial proximity of an oxygen atom next to the BF2 group and that the activation originates from an electronic and not steric effect. Theoretical calculations also show that while the energy barrier for the trans → BODIHY transformation is accessible at room temperature (thermal half-life of 30 h), the cis → BODIHY transformation has a much higher barrier, which is why the 1,2-BF2 shift is not observed for the cis form. The photoswitching of the azo-BF2, in conjunction with the 1,2-BF2 shift, was then used in the multicolor modulation of a switch-containing cross-linked polydimethylsiloxane film using light and/or heat stimuli, elaborating the usefulness of the sophisticated reaction cascade that can be accessed from this simple system.
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Affiliation(s)
- Qingkai Qi
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Shiqing Huang
- Fluorescence Research Group, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
| | - Xiaogang Liu
- Fluorescence Research Group, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
| | - Ivan Aprahamian
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
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4
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Recent progresses in the mechanistic studies of aggregation-induced emission-active boron complexes and clusters. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214779] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Immobilization of chalcone chemosensor into plasma-pretreated recycled polyester fibers toward multi-stimuli responsive textiles for detection of ammonia. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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6
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Wang W, Tong S, Wang Q, Ao Y, Wang D, Zhu J. Thiazole Boron Difluoride Dyes with Large Stokes Shift, Solid State Emission and Room-Temperature Phosphorescence. Chemistry 2022; 28:e202202507. [PMID: 35994377 PMCID: PMC9825895 DOI: 10.1002/chem.202202507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Indexed: 01/11/2023]
Abstract
The small Stokes shift and weak emission in the solid state are two main shortcomings associated with the boron-dipyrromethene (BODIPY) family of dyes. This study presents the design, synthesis and luminescent properties of boron difluoro complexes of 2-aryl-5-alkylamino-4-alkylaminocarbonylthiazoles. These dyes display Stokes shifts (Δλ, 77-101 nm) with quantum yields (ϕFL ) up to 64.9 and 34.7 % in toluene solution and in solid state, respectively. Some of these compounds exhibit dual fluorescence and room-temperature phosphorescence (RTP) emission properties with modulable phosphorescence quantum yields (ϕPL ) and lifetime (τp up to 251 μs). The presence of intramolecular H-bonds and negligible π-π stacking revealed by X-ray crystal structure might account for the observed large Stokes shift and significant solid-state emission of these fluorophores, while the enhanced spin-orbit coupling (SOC) of iodine and the self-assembly driven by halogen bonding, π-π and C-H… π interactions could be responsible for the observed RTP of iodine containing phosphors.
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Affiliation(s)
- Wei Wang
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of SciencesBeijing100190P. R. China,University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Shuo Tong
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry andChemical BiologyDepartment of ChemistryTsinghua UniversityBeijing100084P. R. China
| | - Qi‐Qiang Wang
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of SciencesBeijing100190P. R. China,University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Yu‐Fei Ao
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of SciencesBeijing100190P. R. China,University of Chinese Academy of SciencesBeijing100049P. R. China
| | - De‐Xian Wang
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of SciencesBeijing100190P. R. China,University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products (LSPN)Institute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH53041015LausanneSwitzerland
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7
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Watson AER, Grant MJ, Boyle PD, Ragogna PJ, Gilroy JB. Heterocyclic Phosphenium Cations and Their Divergent Coordination Chemistry. Inorg Chem 2022; 61:18719-18728. [DOI: 10.1021/acs.inorgchem.2c03216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Alexander E. R. Watson
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research (CAMBR), The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Michael J. Grant
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research (CAMBR), The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Paul D. Boyle
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research (CAMBR), The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Paul J. Ragogna
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research (CAMBR), The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Joe B. Gilroy
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research (CAMBR), The University of Western Ontario, London, Ontario N6A 5B7, Canada
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8
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Snari RM, Al‐Qahtani SD, Aldawsari AM, Alnoman RB, Ibarhiam SF, Alaysuy O, Shaaban F, El‐Metwaly NM. Development of novel reversible thermometer from
N
‐isopropylacrylamide and dicyanodihydrofuran hydrazone probe. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Razan M. Snari
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Salhah D. Al‐Qahtani
- Department of Chemistry, College of Science Princess Nourah bint Abdulrahman University Riyadh Saudi Arabia
| | - Afrah M. Aldawsari
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
- Department of Chemistry King abdulaziz City for Science and Technology Riyadh Saudi Arabia
| | - Rua B. Alnoman
- Department of Chemistry, College of Science Taibah University Madinah Saudi Arabia
| | - Saham F. Ibarhiam
- Department of Chemistry, College of Science University of Tabuk Tabuk Saudi Arabia
| | - Omaymah Alaysuy
- Department of Chemistry, College of Science University of Tabuk Tabuk Saudi Arabia
| | - Fathy Shaaban
- Environment and Health Research Department, The Custodian of the Two Holy Mosques Institute for Hajj and Umrah Research Umm Al‐Qura University Makkah Saudi Arabia
- Geomagnetic and Geoelectric Department National Research Institute of Astronomy and Geophysics Cairo Egypt
| | - Nashwa M. El‐Metwaly
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
- Department of Chemistry, Faculty of Science Mansoura University Mansoura Egypt
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9
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Cappello D, Buguis FL, Gilroy JB. Tuning the Properties of Donor-Acceptor and Acceptor-Donor-Acceptor Boron Difluoride Hydrazones via Extended π-Conjugation. ACS OMEGA 2022; 7:32727-32739. [PMID: 36120012 PMCID: PMC9476501 DOI: 10.1021/acsomega.2c04401] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
Molecular materials with π-conjugated donor-acceptor (D-A) and acceptor-donor-acceptor (A-D-A) electronic structures have received significant attention due to their usage in organic photovoltaic materials, in organic light-emitting diodes, and as biological imaging agents. Boron-containing molecular materials have been explored as electron-accepting units in compounds with D-A and A-D-A properties as they often exhibit unique and tunable optoelectronic and redox properties. Here, we utilize Stille cross-coupling chemistry to prepare a series of compounds with boron difluoride hydrazones (BODIHYs) as acceptors and benzene, thiophene, or 9,9-dihexylfluorene as donors. BODIHYs with D-A and A-D-A properties exhibited multiple reversible redox waves, solid-state emission with photoluminescence quantum yields up to 10%, and aggregation-induced emission (AIE). Optical band gaps (or highest occupied molecular orbital (HOMO)-lowest unoccupied molecular orbital (LUMO) gaps) determined for these compounds (2.02-2.25 eV) agree well with those determined from cyclic voltammetry experiments (2.05-2.42 eV). The optoelectronic properties described herein are rationalized with density functional theory calculations that support the interpretation of the experimental findings. This work provides a foundation of understanding that will allow for the consideration of D-A and A-D-A BODIHYs to be incorporated into applications (e.g., organic electronics) where fine-tuning of band gaps is required.
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10
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Shao X, Liu M, Liu J, Wang L. A Resonating B, N Covalent Bond and Coordination Bond in Aromatic Compounds and Conjugated Polymers. Angew Chem Int Ed Engl 2022; 61:e202205893. [DOI: 10.1002/anie.202205893] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Indexed: 12/17/2022]
Affiliation(s)
- Xingxin Shao
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
- School of Applied Chemistry and Engineering University of Science and Technology of China Hefei 230026 P. R. China
| | - Mengyu Liu
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
- School of Applied Chemistry and Engineering University of Science and Technology of China Hefei 230026 P. R. China
| | - Jun Liu
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
- School of Applied Chemistry and Engineering University of Science and Technology of China Hefei 230026 P. R. China
| | - Lixiang Wang
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
- School of Applied Chemistry and Engineering University of Science and Technology of China Hefei 230026 P. R. China
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11
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Shao X, Liu M, Liu J, Wang L. Resonating B, N Covalent Bond and Coordination Bond in Aromatic Compounds and Conjugated Polymers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xingxin Shao
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences State Key Laboratory of Polymer Physics and Chemistry CHINA
| | - Mengyu Liu
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences State Key Laboratory of Polymer Physics and Chemistry CHINA
| | - Jun Liu
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences State Key Labortory of Polymer Physics and Chemistry 5625 Renmin Street 130022 Changchun CHINA
| | - Lixiang Wang
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences State Key Laboratory of Polymer Physics and Chemistry CHINA
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12
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Cappello D, Buguis FL, Boyle PD, Gilroy JB. Dual Emission, Aggregation, and Redox Properties of Boron Difluoride Hydrazones Functionalized with Triphenylamines. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Daniela Cappello
- The University of Western Ontario Department of Chemistry CANADA
| | | | - Paul D. Boyle
- The University of Western Ontario Department of Chemistry CANADA
| | - Joe B. Gilroy
- The University of Western Ontario Department of Chemistry 1151 Richmond St. N. N6A 5B7 London CANADA
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13
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Murali AC, Nayak P, Venkatasubbaiah K. Recent advances in the synthesis of luminescent tetra-coordinated boron compounds. Dalton Trans 2022; 51:5751-5771. [PMID: 35343524 DOI: 10.1039/d2dt00160h] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Tetra-coordinated boron compounds offer a plethora of luminescent materials. Different chelation around the boron center (O,O-, N,C-, N,O-, and N,N-) has been explored to tune the electronic and photophysical properties of tetra-coordinated boron compounds. A number of fascinating molecules with interesting properties such as aggregation induced emission, mechanochromism and tunable emission by changing the solvent polarity were realised. Owing to their rich and unique properties, some of the molecules have shown applications in making optoelectronic devices, probes and so on. This perspective provides an overview of the recent developments of tetra-coordinated boron compounds and their potential applications.
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Affiliation(s)
- Anna Chandrasekar Murali
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), an OCC of Homi Bhabha National Institute, Bhubaneswar-752050, Odisha, India.
| | - Prakash Nayak
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), an OCC of Homi Bhabha National Institute, Bhubaneswar-752050, Odisha, India.
| | - Krishnan Venkatasubbaiah
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), an OCC of Homi Bhabha National Institute, Bhubaneswar-752050, Odisha, India.
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14
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2-(4-(Dimethylamino)phenyl)-3,3-difluoro-4,6-diphenyl-3,4-dihydro-1,2,4,5,3-tetrazaborinin-2-ium-3-ide. MOLBANK 2021. [DOI: 10.3390/m1312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Reaction of 1-(4-(dimethylamino)phenyl)-3,5-diphenylformazane with boron trifluoride diethyl etherate (5 equiv) in the presence of triethylamine (3 equiv) in toluene medium gave “boratetrazine”—2-(4-(dimethylamino)phenyl)-3,3-difluoro-4,6-diphenyl-3,4-dihydro -1,2,4,5,3-tetrazaborinin-2-ium-3-ide in a 58% yield.
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15
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De Simone BC, Alberto ME, Marino T, Russo N, Toscano M. The Contribution of Density Functional Theory to the Atomistic Knowledge of Electrochromic Processes. Molecules 2021; 26:molecules26195793. [PMID: 34641338 PMCID: PMC8510163 DOI: 10.3390/molecules26195793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/08/2021] [Accepted: 09/19/2021] [Indexed: 11/29/2022] Open
Abstract
In this review, we provide a brief overview of the contribution that computational studies can offer to the elucidation of the electronic mechanisms responsible for the electrochromism phenomenon, through the use of the density functional theory (DFT) and its time-dependent formulation (TDDFT). Although computational studies on electrochromic systems are not as numerous as those for other physico-chemical processes, we will show their reliability and ability to predict structures, excitation energies, and redox potentials. The results confirm that these methods not only help in the interpretation of experimental data but can also be used for the rational design of molecules with interesting electrochromic properties to be initiated for synthesis and experimental characterization.
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Affiliation(s)
- Bruna Clara De Simone
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Rende, CS, Italy; (B.C.D.S.); (M.E.A.); (T.M.); (M.T.)
| | - Marta Erminia Alberto
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Rende, CS, Italy; (B.C.D.S.); (M.E.A.); (T.M.); (M.T.)
| | - Tiziana Marino
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Rende, CS, Italy; (B.C.D.S.); (M.E.A.); (T.M.); (M.T.)
| | - Nino Russo
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Rende, CS, Italy; (B.C.D.S.); (M.E.A.); (T.M.); (M.T.)
- Correspondence:
| | - Marirosa Toscano
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Rende, CS, Italy; (B.C.D.S.); (M.E.A.); (T.M.); (M.T.)
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16
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Su X, Bartholome TA, Tidwell JR, Pujol A, Yruegas S, Martinez JJ, Martin CD. 9-Borafluorenes: Synthesis, Properties, and Reactivity. Chem Rev 2021; 121:4147-4192. [DOI: 10.1021/acs.chemrev.0c01068] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Xiaojun Su
- Department of Chemistry and Biochemistry, Baylor University, One Bear Place #97348, Waco, Texas 76798, United States
| | - Tyler A. Bartholome
- Department of Chemistry and Biochemistry, Baylor University, One Bear Place #97348, Waco, Texas 76798, United States
| | - John R. Tidwell
- Department of Chemistry and Biochemistry, Baylor University, One Bear Place #97348, Waco, Texas 76798, United States
| | - Alba Pujol
- Department of Chemistry and Biochemistry, Baylor University, One Bear Place #97348, Waco, Texas 76798, United States
| | - Sam Yruegas
- Department of Chemistry and Biochemistry, Baylor University, One Bear Place #97348, Waco, Texas 76798, United States
| | - Jesse J. Martinez
- Department of Chemistry and Biochemistry, Baylor University, One Bear Place #97348, Waco, Texas 76798, United States
| | - Caleb D. Martin
- Department of Chemistry and Biochemistry, Baylor University, One Bear Place #97348, Waco, Texas 76798, United States
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17
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Singh VD, Dwivedi BK, Kumar Y, Pandey DS. Artificial light-harvesting systems (LHSs) based on boron-difluoride (BF 2) hydrazone complexes (BODIHYs). NEW J CHEM 2021. [DOI: 10.1039/d0nj04547k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hydrazone based BF2–complexes (BODIHYs; B1–B2) have been synthesized and their photophysical and aggregation behavior have been established. These BODIHYs have been showed light harvesting properties in presence of RhB as acceptor.
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Affiliation(s)
- Vishwa Deepak Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221 005
- India
| | | | - Yogesh Kumar
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221 005
- India
| | - Daya Shankar Pandey
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221 005
- India
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18
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Cappello D, Watson AER, Gilroy JB. A Boron Difluoride Hydrazone (BODIHY) Polymer Exhibits Aggregation-Induced Emission. Macromol Rapid Commun 2020; 42:e2000553. [PMID: 33274808 DOI: 10.1002/marc.202000553] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/22/2020] [Indexed: 11/08/2022]
Abstract
Polymers that exhibit aggregation-induced emission (AIE) find use, for example, as cell-imaging agents and as fluorometric sensors due to their unique optical properties. However, the structural diversity of AIE-active polymers has not necessarily advanced at the same rate as their applications. In this work, ring-opening metathesis polymerization is used to synthesize the first example of a polymer (Mn = 61,600 g mol-1 , Đ = 1.32) containing boron difluoride hydrazone (BODIHY) heterocycles in its repeating unit. The BODIHY monomer and polymer described absorb and emit in the visible region in solution (λabs = 428 and 429 nm, λem = 528 and 526 nm) and as thin films (λabs = 443 and 440 nm, λem = 535 and 534 nm). Monomer (ΦFilm = 10%) and polymer (ΦFilm = 6%) exhibit enhanced emission as thin films compared to solution (ΦSoln ≤ 1%) as well as AIE upon the addition of water to DMF solutions as a result of restriction of intramolecular motion. Enhancement factors for the monomer and polymer are determined to be 58 and 15, respectively. The title BODIHY polymer exhibited an earlier onset of AIE and enhanced sensitivity to solution viscosity when compared to the parent monomer.
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Affiliation(s)
- Daniela Cappello
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research (CAMBR), The University of Western Ontario, London, ON, N6A 5B7, Canada
| | - Alexander E R Watson
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research (CAMBR), The University of Western Ontario, London, ON, N6A 5B7, Canada
| | - Joe B Gilroy
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research (CAMBR), The University of Western Ontario, London, ON, N6A 5B7, Canada
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19
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Abstract
The adsorption of a dye to a metal oxide surface such as TiO2, NiO and ZnO leads to deprotonation and often undesirable aggregation of dye molecules, which in turn impacts the photophysical properties of the dye. While controlled aggregation is useful for some applications, it can result in lower performance for dye-sensitized solar cells. To understand this phenomenon better, we have conducted an extensive search of the literature and identified over 4000 records of absorption spectra in solution and after adsorption onto metal oxide. The total data set comprises over 3500 unique compounds, with observed absorption maxima in solution and after adsorption on the semiconductor electrode. This data may serve to provide further insight into the structure-property relationships governing dye-aggregation behaviour.
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Cappello D, Maar RR, Staroverov VN, Gilroy JB. Optoelectronic Properties of Carbon‐Bound Boron Difluoride Hydrazone Dimers. Chemistry 2020; 26:5522-5529. [DOI: 10.1002/chem.202000533] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Indexed: 01/19/2023]
Affiliation(s)
- Daniela Cappello
- Department of Chemistry, and Advanced Materials and Biomaterials Research (CAMBR)The University of Western Ontario London Ontario N6A 5B7 Canada
| | - Ryan R. Maar
- Department of Chemistry, and Advanced Materials and Biomaterials Research (CAMBR)The University of Western Ontario London Ontario N6A 5B7 Canada
| | - Viktor N. Staroverov
- Department of Chemistry, and Advanced Materials and Biomaterials Research (CAMBR)The University of Western Ontario London Ontario N6A 5B7 Canada
| | - Joe B. Gilroy
- Department of Chemistry, and Advanced Materials and Biomaterials Research (CAMBR)The University of Western Ontario London Ontario N6A 5B7 Canada
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Amine Khodja I, Boulebd H. Synthesis, biological evaluation, theoretical investigations, docking study and ADME parameters of some 1,4-bisphenylhydrazone derivatives as potent antioxidant agents and acetylcholinesterase inhibitors. Mol Divers 2020; 25:279-290. [PMID: 32146656 DOI: 10.1007/s11030-020-10064-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 02/26/2020] [Indexed: 11/28/2022]
Abstract
Five 1,4-bisphenylhydrazone derivatives (1-5) were successfully synthesized and evaluated for their antioxidant and acetylcholinesterase inhibitory activities. The antioxidant activity has been carried out using DPPH, ABTS, CUPRAC and superoxide radical scavenging methods. All the compounds showed a very good antioxidant activity compared to that of the standards used. Compound 1 was found to be the best antioxidant agent with IC50 values lower or comparable to that of the standards. The acetylcholinesterase inhibitory activity has been evaluated using a modified Ellman's assay. The obtained results indicate that compound 2 is the best acetylcholinesterase inhibitor with a low IC50 value comparable to that of the galantamine. In addition, DFT calculations have been performed to determine in which mechanism the synthesized hydrazones follow to scavenge free radicals. Molecular docking study was performed for compound 2, and its interaction modes with the enzyme acetylcholinesterase were determined. As a result, a strong interaction between this compound and the active site of AChE enzyme was revealed. Finally, ADME properties of the synthesized compounds were also studied and showed good drug-like properties.
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Affiliation(s)
- Imene Amine Khodja
- Laboratory of Synthesis of Molecules with Biological Interest, University of Frères Mentouri Constantine 1, Constantine, Algeria
| | - Houssem Boulebd
- Laboratory of Synthesis of Molecules with Biological Interest, University of Frères Mentouri Constantine 1, Constantine, Algeria.
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Garre MS, Losantos R, Gutiérrez S, Sucunza D, García-García P, Sampedro D, Vaquero JJ. Synthesis and Photophysical Behavior of a Highly Fluorescent Family of Unsymmetrical Organoboron Complexes Containing 5-(Pyridin-2-ylmethylene)imidazolidine-2,4-dione Moieties. J Org Chem 2019; 85:441-448. [PMID: 31858801 DOI: 10.1021/acs.joc.9b02451] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A new and highly fluorescent family of unsymmetrical organoboron complexes containing 5-(pyridin-2-ylmethylene)imidazolidine-2,4-dione moieties has been synthesized in three steps. These compounds show strong absorptions covering a wide range of the UV-vis spectrum and are strongly emissive (ϕf of up to 0.92 in CH3CN). Moreover, two fluorophores that include an alkyne or an azide group at the end of the alkyl chain and with potential utility in bioorthogonal chemistry have been developed. One of these, in which the glycol substituent provides an enhanced water solubility without compromising the fluorescence (ϕf = 0.85 in water), may be of particular importance.
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Affiliation(s)
- M Soledad Garre
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR) , Universidad de Alcalá, IRYCIS , 28805 Alcalá de Henares , Spain
| | - Raúl Losantos
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ) , Universidad de La Rioja , Madre de Dios 53 , 26006 Logroño , Spain
| | - Sara Gutiérrez
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR) , Universidad de Alcalá, IRYCIS , 28805 Alcalá de Henares , Spain
| | - David Sucunza
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR) , Universidad de Alcalá, IRYCIS , 28805 Alcalá de Henares , Spain
| | - Patricia García-García
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR) , Universidad de Alcalá, IRYCIS , 28805 Alcalá de Henares , Spain
| | - Diego Sampedro
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ) , Universidad de La Rioja , Madre de Dios 53 , 26006 Logroño , Spain
| | - Juan J Vaquero
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR) , Universidad de Alcalá, IRYCIS , 28805 Alcalá de Henares , Spain
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Pandith A, Kim HY, Shin T, Seo YJ. Unprecedented green-emissive boranyl-hydrazone supramolecular assemblies and their in vitro diagnostic applications. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2019; 197:111553. [PMID: 31326845 DOI: 10.1016/j.jphotobiol.2019.111553] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 06/29/2019] [Accepted: 07/09/2019] [Indexed: 06/10/2023]
Abstract
This paper describes a novel symmetric N,N'-diethylsalicylaldehyde boranyl hydrazone (1) and its in situ-generated assemblies displaying opto-analytical capabilities for the diagnosis of nucleic acids under physiological conditions. The sensing capabilities of these unprecedented supramolecular assemblies were characterized using UV-Vis spectroscopy, fluorescence spectroscopy, 1D and 2D NMR spectroscopy, dynamic light scattering, and zeta potential measurements. Model compounds lacking boranyl units (2, 3) were prepared to correlate and evaluate the sensing mechanism. The rationally designed probe 1 displays unusual aggregation-induced emissive (AIE) properties, with an average particle size of 1096 nm exhibiting green emission upon excitation at 377 nm in pH-7.2 TRIZMA buffer. A selective switch on response toward organic PO43- accompanied through specific nano-aggregations patterns and sizes, thereby causing a significant red-shift through AIE. Exploiting such switch on in green channel behavior has allowed the monitoring of DNase I activities and polymerase chain reactions.
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Affiliation(s)
- Anup Pandith
- Department of Chemistry, Chonbuk National University, Jeonju 54398, Republic of Korea
| | - Hye-Yeon Kim
- Department of Chemistry, Chonbuk National University, Jeonju 54398, Republic of Korea
| | - Taeho Shin
- Department of Chemistry, Chonbuk National University, Jeonju 54398, Republic of Korea
| | - Young Jun Seo
- Department of Chemistry, Chonbuk National University, Jeonju 54398, Republic of Korea; Department of Bioactive Materials, Chonbuk National University, Jeonju 54398, Republic of Korea.
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