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Kalita N, Crawley MR, Rosch LE, Szeglowski O, Cook TR. Exploring the Te(II)/Te(IV) Redox Couple of a Tellurorosamine Chromophore: Photophysical, Photochemical, and Electrochemical Studies. Inorg Chem 2024; 63:13157-13165. [PMID: 38989980 DOI: 10.1021/acs.inorgchem.4c01077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
A tellurorosamine dye [Te(II)] undergoes aerobic photooxidation. Although Te(IV) species have been used in a number of oxidations, key Te(IV)-oxo and Te(IV)-bis(hydroxy) intermediates are challenging to study. Under aerobic irradiation with visible light, Te(II) (λmax = 600 nm) transforms into a Te(IV) species (λmax = 669 nm). The resultant Te(IV) species is not stable in the dark or at -20 °C, decomposing back to Te(II) and other byproducts over many hours. To eliminate the structural ambiguity of the Te(IV) photoproduct, we used spectroelectrochemistry, wherein the bis(hydroxy) Te(IV)-(OH)2 was electrochemically generated under anaerobic conditions. The absorption of Te(IV)-(OH)2 matches that of the Te(IV) photoproduct. Because isosbestic points are maintained both photochemically and electrochemically, the oxo core formed photochemically must rapidly equilibrate with Te(IV)-(OH)2. Calculations on the bis(hydroxy) versus oxo species further corroborate that the equilibration is rapid and the spectra of the two species are similar. To further explore Te(IV) cores, two novel compounds, Te(IV)-Cl2 and Te(IV)-Br2, were synthesized. Characterization of Te(IV)-X2 was simplified because these cores have no analogue to the Te(IV)-(O)/Te(IV)-(OH)2 equilibrium. This work provides insights into the photophysical and electrochemical behavior of Te analogues of chalcogenoxanthylium dyes, which are relevant for a broad range of photochemical applications.
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Affiliation(s)
- Nayanika Kalita
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Matthew R Crawley
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Lauren E Rosch
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Owen Szeglowski
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Timothy R Cook
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
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2
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Singh A, Dhau J, Kumar R, Badru R, Kaushik A. Exploring the fluorescence properties of tellurium-containing molecules and their advanced applications. Phys Chem Chem Phys 2024; 26:9816-9847. [PMID: 38497121 DOI: 10.1039/d3cp05740b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
This review article explores the fascinating realm of fluorescence using organochalcogen molecules, with a particular emphasis on tellurium (Te). The discussion encompasses the underlying mechanisms, structural motifs influencing fluorescence, and the applications of these intriguing phenomena. This review not only elucidates the current state of knowledge but also identifies avenues for future research, thereby serving as a valuable resource for researchers and enthusiasts in the field of fluorescence chemistry with a focus on Te-based molecules. By highlighting challenges and prospects, this review sparks a conversation on the transformative potential of Te-containing compounds across different fields, ranging from environmental solutions to healthcare and materials science applications. This review aims to provide a comprehensive understanding of the distinct fluorescence behaviors exhibited by Te-containing compounds, contributing valuable insights to the evolving landscape of chalcogen-based fluorescence research.
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Affiliation(s)
- Avtar Singh
- Research and Development, Molekule Group Inc., 3802 Spectrum Blvd., Tampa, Florida 33612, USA.
- Department of Chemistry, Sri Guru Teg Bahadur Khalsa College, Anandpur Sahib, Punjab 140118, India
| | - Jaspreet Dhau
- Research and Development, Molekule Group Inc., 3802 Spectrum Blvd., Tampa, Florida 33612, USA.
| | - Rajeev Kumar
- Department of Environment Studies, Panjab University, Chandigarh 160014, India
| | - Rahul Badru
- Department of Chemistry, Sri Guru Granth Sahib World University, Fatehgarh Sahib, Punjab 140406, India
| | - Ajeet Kaushik
- NanoBioTech Laboratory, Department of Environmental Engineering, Florida Polytechnic University, Lakeland, FL 33805, USA
- School of Engineering, University of Petroleum and Energy Studies (UPES), Dehradun, Uttarakhand, India
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3
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Rettig ID, Halvorsen KM, McCormick TM. Synthesis, photophysical characterization, and aerobic redox reactivity of electron-rich tellurorhodamine photocatalysts. Dalton Trans 2023; 52:3990-4001. [PMID: 36857701 DOI: 10.1039/d2dt03534k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Tellurorhodamine dyes are a class of self-sensitizing chromophores that we have previously shown can photocatalytically oxidize a variety of organic and inorganic compounds with visible light, oxygen, and water. A new series of tellurorhodamine chromophores containing electron donating moieties were synthesized to explore how different electron donating groups affect photophysical properties and catalyst function. The synthesized complexes 1B, 1C, and 1D contain increasingly electron-donating substituents (Me, t-Butyl, OMe) on the xylene ring. 1A, containing an unsubstituted xylene, was synthesized for use as a control. UV-Vis spectroscopy was used to determine the photophysical properties of the dyes and for kinetic and thermodynamic studies. With visible light irradiation all dyes could be oxidized at room temperature to their corresponding telluroxides 2A, 2B, 2C, and 2D, as confirmed by mass spectroscopy. Comparative reduction studies using our previously established silane oxidation reaction showed that decreasing the electron density of the xylene moiety increased the rate of reduction, corresponding to a decrease in the experimental ΔG. 2D has the smallest energy barrier to silane oxidation, and a linear increase in rate with increasing substituent electron withdrawing nature was observed at low temperatures, and non-linearity at high temperatures.
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Affiliation(s)
- Irving D Rettig
- Department of Chemistry, Portland State University, Portland, Oregon, 97201, USA.
| | - Kristine M Halvorsen
- Department of Chemistry, Portland State University, Portland, Oregon, 97201, USA.
| | - Theresa M McCormick
- Department of Chemistry, Portland State University, Portland, Oregon, 97201, USA.
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4
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Kawatani M, Spratt SJ, Fujioka H, Shou J, Misawa Y, Kojima R, Urano Y, Ozeki Y, Kamiya M. 9-Cyano-10-telluriumpyronin Derivatives as Red-light-activatable Raman Probes. Chem Asian J 2023; 18:e202201086. [PMID: 36461627 PMCID: PMC10107100 DOI: 10.1002/asia.202201086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/01/2022] [Accepted: 12/01/2022] [Indexed: 12/05/2022]
Abstract
Photoactivatable fluorescence probes can track the dynamics of specific cells or biomolecules with high spatiotemporal resolution, but their broad absorption and emission peaks limit the number of wavelength windows that can be employed simultaneously. In contrast, the narrower peak width of Raman signals offers more scope for simultaneous discrimination of multiple targets, and therefore a palette of photoactivatable Raman probes would enable more comprehensive investigation of biological phenomena. Herein we report 9-cyano-10-telluriumpyronin (9CN-TeP) derivatives as photoactivatable Raman probes whose stimulated Raman scattering (SRS) intensity is enhanced by photooxidation of the tellurium atom. Modification to increase the stability of the oxidation product led to a julolidine-like derivative, 9CN-diMeJTeP, which is photo-oxidized at the tellurium atom by red light irradiation to afford a sufficiently stable oxidation product with strong electronic pre-resonance, resulting in a bathochromic shift of the absorption spectrum and increased SRS intensity.
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Affiliation(s)
- Minoru Kawatani
- Department of Life Science and Technology, Tokyo Institute of Technology, Kanagawa, 226-8501, Japan.,Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Spencer J Spratt
- Department of Electrical Engineering and Information Systems, The University of Tokyo, Tokyo, 113-8656, Japan
| | - Hiroyoshi Fujioka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Jingwen Shou
- Department of Electrical Engineering and Information Systems, The University of Tokyo, Tokyo, 113-8656, Japan
| | - Yoshihiro Misawa
- Department of Life Science and Technology, Tokyo Institute of Technology, Kanagawa, 226-8501, Japan.,Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Ryosuke Kojima
- Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Yasuteru Urano
- Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan.,Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Yasuyuki Ozeki
- Department of Electrical Engineering and Information Systems, The University of Tokyo, Tokyo, 113-8656, Japan
| | - Mako Kamiya
- Department of Life Science and Technology, Tokyo Institute of Technology, Kanagawa, 226-8501, Japan.,Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan.,Living Systems Materialogy (LiSM) Research Group, International Research Frontiers Initiative (IRFI), Tokyo Institute of Technology, Kanagawa, 226-8501, Japan
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5
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Xanthene dyes for cancer imaging and treatment: A material odyssey. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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6
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Rao DN, Ji X, Miller SC. Silicon functionalization expands the repertoire of Si-rhodamine fluorescent probes. Chem Sci 2022; 13:6081-6088. [PMID: 35685786 PMCID: PMC9132037 DOI: 10.1039/d2sc01821g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 04/30/2022] [Indexed: 01/03/2023] Open
Abstract
Fluorescent dyes such as rhodamines are widely used to assay the activity and image the location of otherwise invisible molecules. Si-rhodamines, in which the bridging oxygen of rhodamines is replaced with a dimethyl silyl group, are increasingly the dye scaffold of choice for biological applications, as fluorescence is shifted into the near-infrared while maintaining high brightness. Despite intense interest in Si-rhodamines, there has been no exploration of the scope of silicon functionalization in these dyes, a potential site of modification that does not exist in conventional rhodamines. Here we report a broad range of silyl modifications that enable brighter dyes, further red-shifting, new ways to modulate fluorescence, and the introduction of handles for dye attachment, including fluorogenic labeling agents for nuclear DNA, SNAP-tag and HaloTag labeling. Modifications to the bridging silicon are therefore of broad utility to improve and expand the applications of all Si-dyes. Functionalization of the bridging silicon atom of Si-rhodamine dyes allows tuning of dye performance, the attachment of sensors, and the addition of biomolecular targeting ligands useful for the construction of live cell imaging probes.![]()
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Affiliation(s)
- Desaboini Nageswara Rao
- Department of Biochemistry and Molecular Biotechnology, University of Massachusetts Chan Medical School Worcester Massachusetts 01605 USA
| | - Xincai Ji
- Department of Biochemistry and Molecular Biotechnology, University of Massachusetts Chan Medical School Worcester Massachusetts 01605 USA
| | - Stephen C Miller
- Department of Biochemistry and Molecular Biotechnology, University of Massachusetts Chan Medical School Worcester Massachusetts 01605 USA
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Mills HA, Alsarhan F, Ong TC, Gembicky M, Rheingold AL, Spokoyny AM. Icosahedral m-Carboranes Containing Exopolyhedral B-Se and B-Te Bonds. Inorg Chem 2021; 60:19165-19174. [PMID: 34855370 DOI: 10.1021/acs.inorgchem.1c02981] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Chalcogen-containing carboranes have been known for several decades and possess stable exopolyhedral B(9)-Se and B(9)-Te σ bonds despite the electron-donating ability of the B(9) vertex. While these molecules are known, little has been done to thoroughly evaluate their electrophilic and nucleophilic behavior. Herein, we report an assessment of the electrophilic reactivity of m-carboranylselenyl(II), -tellurenyl(II), and -tellurenyl(IV) chlorides and establish their reactivity pattern with Grignard reagents, alkenes, alkynes, enolates, and electron-rich arenes. These electrophilic reactions afford unique electron-rich B-Y-C (Y = Se, Te) bonding motifs not commonly found before. Furthermore, we show that m-carboranylselenolate, and even m-carboranyltellurolate, can be competent nucleophiles and participate in nucleophilic aromatic substitution reactions. Arene substitution chemistry is shown to be further extended to electron-rich species via palladium-mediated cross-coupling chemistry.
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Affiliation(s)
- Harrison A Mills
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Fadi Alsarhan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Ta-Chung Ong
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Milan Gembicky
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Arnold L Rheingold
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Alexander M Spokoyny
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States.,California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
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8
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Braun CA, Ferguson MJ, Rivard E. Tellura(benzo)bithiophenes: Synthesis, Oligomerization, and Phosphorescence. Inorg Chem 2021; 60:2672-2679. [PMID: 33481578 DOI: 10.1021/acs.inorgchem.0c03559] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of planar π-extended Te-containing heteroacenes, termed tellura(benzo)bithiophenes, were synthesized. This new structural class of heterocycle features a tellurophene ring fused to a benzobithiophene unit with aromatic side groups (either -C6H4iPr or -C6H4OCH3) positioned at the 2- and 5-positions of the tellurophene moiety. Although attempts to enhance molecular rigidity and extend ring-framework π-delocalization in a cumenyl (-C6H4iPr)-capped tellura(benzo)bithiophene led to oxidation (and Te-C bond scission) to form a diene-one, the formation of an oligomeric tellura(benzo)bithiophene was possible via Kumada catalyst-transfer polycondensation (KCTP). Furthermore, one tellura(benzo)bithiophene derivative exhibits orange-red phosphorescence at room temperature in air when incorporated into a poly(methyl methacrylate) host; accompanying TD-DFT computations provided insight into a potential mechanism for the observed phosphorescence.
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Affiliation(s)
- Christina A Braun
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Edmonton, Alberta T6G 2G2, Canada
| | - Michael J Ferguson
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Edmonton, Alberta T6G 2G2, Canada
| | - Eric Rivard
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Edmonton, Alberta T6G 2G2, Canada
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9
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Xu H, Ohulchanskyy TY, Qu J, Yakovliev A, Ziniuk R, Yuan Z, Qu J. Co-encapsulating indocyanine green and CT contrast agent within nanoliposomes for trimodal imaging and near infrared phototherapy of cancer. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2020; 29:102269. [PMID: 32679268 DOI: 10.1016/j.nano.2020.102269] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/29/2020] [Accepted: 07/07/2020] [Indexed: 12/21/2022]
Abstract
X-ray CT imaging can be complementary to fluorescence and photoacoustic imaging (FLI and PAI), allowing for high spatial resolution and high-sensitivity multimodal imaging for imaging guided treatment. In this study, the CT contrast agent iohexol was co-encapsulated with indocyanine green (ICG) within nanoliposomes (NLs) to explore their interaction and possible application of this liposomal formulation (LGI) in cancer theranostics. The photophysical properties of LGI were studied to assess the effect of iohexol on ICG that can enhance the efficiency of ICG-based near infrared photodynamic therapy (PDT). The CT, FLI and PA imaging abilities of LGI were also investigated. Furthermore, the near infrared phototherapy of cancer cells in vitro was performed, exhibiting higher phototherapy efficacy of LGI in comparison with other ICG formulations. We conclude that LGI can serve as a highly efficient theranostic nanoplatform for multimodal (fluorescence, CT and PA) imaging and near infrared phototherapy.
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Affiliation(s)
- Hao Xu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong Province, PR China
| | - Tymish Y Ohulchanskyy
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong Province, PR China.
| | - Jinghan Qu
- Faculty of Science Medicine and Health, University of Wollongong, NSW, Australia
| | - Artem Yakovliev
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong Province, PR China
| | - Roman Ziniuk
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong Province, PR China
| | - Zhen Yuan
- Bioimaging Core, Faculty of Health Sciences, University of Macau, Macau, SAR, PR China
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong Province, PR China
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10
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Chepurna OM, Yakovliev A, Ziniuk R, Nikolaeva OA, Levchenko SM, Xu H, Losytskyy MY, Bricks JL, Slominskii YL, Vretik LO, Qu J, Ohulchanskyy TY. Core-shell polymeric nanoparticles co-loaded with photosensitizer and organic dye for photodynamic therapy guided by fluorescence imaging in near and short-wave infrared spectral regions. J Nanobiotechnology 2020; 18:19. [PMID: 31973717 PMCID: PMC6979398 DOI: 10.1186/s12951-020-0572-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 01/07/2020] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Biodistribution of photosensitizer (PS) in photodynamic therapy (PDT) can be assessed by fluorescence imaging that visualizes the accumulation of PS in malignant tissue prior to PDT. At the same time, excitation of the PS during an assessment of its biodistribution results in premature photobleaching and can cause toxicity to healthy tissues. Combination of PS with a separate fluorescent moiety, which can be excited apart from PS activation, provides a possibility for fluorescence imaging (FI) guided delivery of PS to cancer site, followed by PDT. RESULTS In this work, we report nanoformulations (NFs) of core-shell polymeric nanoparticles (NPs) co-loaded with PS [2-(1-hexyloxyethyl)-2-devinyl pyropheophorbide-a, HPPH] and near infrared fluorescent organic dyes (NIRFDs) that can be excited in the first or second near-infrared windows of tissue optical transparency (NIR-I, ~ 700-950 nm and NIR-II, ~ 1000-1350 nm), where HPPH does not absorb and emit. After addition to nanoparticle suspensions, PS and NIRFDs are entrapped by the nanoparticle shell of co-polymer of N-isopropylacrylamide and acrylamide [poly(NIPAM-co-AA)], while do not bind with the polystyrene (polySt) core alone. Loading of the NIRFD and PS to the NPs shell precludes aggregation of these hydrophobic molecules in water, preventing fluorescence quenching and reduction of singlet oxygen generation. Moreover, shift of the absorption of NIRFD to longer wavelengths was found to strongly reduce an efficiency of the electronic excitation energy transfer between PS and NIRFD, increasing the efficacy of PDT with PS-NIRFD combination. As a result, use of the NFs of PS and NIR-II NIRFD enables fluorescence imaging guided PDT, as it was shown by confocal microscopy and PDT of the cancer cells in vitro. In vivo studies with subcutaneously tumored mice demonstrated a possibility to image biodistribution of tumor targeted NFs both using HPPH fluorescence with conventional imaging camera sensitive in visible and NIR-I ranges (~ 400-750 nm) and imaging camera for short-wave infrared (SWIR) region (~ 1000-1700 nm), which was recently shown to be beneficial for in vivo optical imaging. CONCLUSIONS A combination of PS with fluorescence in visible and NIR-I spectral ranges and, NIR-II fluorescent dye allowed us to obtain PS nanoformulation promising for see-and-treat PDT guided with visible-NIR-SWIR fluorescence imaging.
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Affiliation(s)
- O M Chepurna
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - A Yakovliev
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - R Ziniuk
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - O A Nikolaeva
- Taras Shevchenko National University of Kyiv, Kyiv, 01601, Ukraine
| | - S M Levchenko
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - H Xu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - M Y Losytskyy
- Taras Shevchenko National University of Kyiv, Kyiv, 01601, Ukraine
| | - J L Bricks
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, 02094, Ukraine
| | - Yu L Slominskii
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, 02094, Ukraine
| | - L O Vretik
- Taras Shevchenko National University of Kyiv, Kyiv, 01601, Ukraine.
| | - J Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
| | - T Y Ohulchanskyy
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
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11
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Deng F, Xu Z. Heteroatom-substituted rhodamine dyes: Structure and spectroscopic properties. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.12.012] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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12
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Ando N, Soutome H, Yamaguchi S. Near-infrared fluorescein dyes containing a tricoordinate boron atom. Chem Sci 2019; 10:7816-7821. [PMID: 31588332 PMCID: PMC6764465 DOI: 10.1039/c9sc02314c] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 07/03/2019] [Indexed: 01/28/2023] Open
Abstract
Tricoordinate boron imparts near-infrared absorption/emission and unusual multi-stage changes in the photophysical properties to fluorescein dyes.
Bora-fluoresceins (BFs), fluorescein analogues containing a tricoordinate boron atom instead of an oxygen atom at the 10-position of the fluorescein skeleton, were synthesized as a new family of fluorescein analogues. The deprotonated BFs exhibited absorption and fluorescence in the near-infrared region, which were significantly red-shifted relative to those of hitherto-known heteroatom-substituted fluorescein analogues on account of the orbital interaction between the tricoordinate boron atom and the fluorescein skeleton. BFs also showed multi-stage changes resulting from a Lewis acid–base equilibrium at the boron center in combination with a Brønsted acid–base equilibrium at the phenolic hydroxy group.
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Affiliation(s)
- Naoki Ando
- Department of Chemistry , Graduate School of Science , Integrated Research Consortium on Chemical Sciences (IRCCS) , Nagoya University , Furo, Chikusa , Nagoya 464-8602 , Japan .
| | - Hiroki Soutome
- Department of Chemistry , Graduate School of Science , Integrated Research Consortium on Chemical Sciences (IRCCS) , Nagoya University , Furo, Chikusa , Nagoya 464-8602 , Japan .
| | - Shigehiro Yamaguchi
- Department of Chemistry , Graduate School of Science , Integrated Research Consortium on Chemical Sciences (IRCCS) , Nagoya University , Furo, Chikusa , Nagoya 464-8602 , Japan . .,Institute of Transformative Bio-Molecules (WPI-ITbM) , Nagoya University , Furo, Chikusa , Nagoya 464-8602 , Japan
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13
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Clark JL, Hill JE, Rettig ID, Beres JJ, Ziniuk R, Ohulchanskyy TY, McCormick TM, Detty MR. Importance of Singlet Oxygen in Photocatalytic Reactions of 2-Aryl-1,2,3,4-tetrahydroisoquinolines Using Chalcogenorosamine Photocatalysts. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00126] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jennifer L. Clark
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, United States
| | - Jackie E. Hill
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, United States
| | - Irving D. Rettig
- Department of Chemistry, Portland State University, Portland, Oregon 97207, United States
| | - Joshua J. Beres
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, United States
| | - Roman Ziniuk
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P.R. China
| | - Tymish Y. Ohulchanskyy
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P.R. China
| | - Theresa M. McCormick
- Department of Chemistry, Portland State University, Portland, Oregon 97207, United States
| | - Michael R. Detty
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, United States
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14
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Pop A, Silvestru C, Silvestru A. Organoselenium and organotellurium compounds containing chalcogen-oxygen bonds in organic synthesis or related processes. PHYSICAL SCIENCES REVIEWS 2019. [DOI: 10.1515/psr-2018-0061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Abstract
This chapter emphasizes aspects related to the role of organochalcogen (Se, Te) compounds with single E‒O and/or double E=O (E=Se, Te) bonds in organic synthesis, as reagents, intermediates, or catalysts, and it gives a larger extent mainly to data reported in the field during the last ten years. For each of these two heavier chalcogens the material is structured according to the oxidation state of the chalcogen and, for the same oxidation state, in sections dedicated to a particular type of compounds. Functionalization or cyclization reactions in which the organochalcogen compounds take part as nucleophiles, electrophiles or radicals, employed in various synthetic transformations, are discussed and, where available, the mechanistic aspects are outlined. New chiral species and new strategies were developed during last years in order to increase the yield, the reaction rate and the stereoselectivity in specific organic transformations, i.e. addition, oxidation, elimination, cyclization or rearrangement reactions. A notably attention was devoted to easily accessible and environmental friendly catalysts, re-usable and “green” solvents, as well as waste-free procedures.
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15
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Rettig ID, Van J, Brauer JB, Luo W, McCormick TM. Tellurorhodamine photocatalyzed aerobic oxidation of organo-silanes and phosphines by visible-light. Dalton Trans 2019; 48:5665-5673. [PMID: 30968906 DOI: 10.1039/c9dt00487d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Tellurorhodamine, 9-mesityl-3,6-bis(dimethylamino)telluroxanthylium hexafluorophosphate (1), photocatalytically oxidizes aromatic and aliphatic silanes and triphenyl phosphine under mild aerobic conditions. Under irradiation with visible light, 1 can react with self-sensitized 1O2 to generate the active telluroxide oxidant (2). Silanes are oxidized to silanols and triphenyl phosphine is oxidized to triphenyl phoshine oxide either using 2, or 1 with aerobic irradiation. Kinetic experiments coupled with a computational study elucidate possible mechanisms of oxidation for both silane and phosphine substrates. First-order rates were observed in the oxidation of triphenyl phosphine and methyldiphenyl silane, indicating a substitution like mechanism for substrate binding to the oxidized tellurium(iv). Additionally, these reactions exhibited a rate-dependence on water. Oxidations were typically run in 50 : 50 water/methanol, however, the absence of water decreased the rates of silane oxidation to a greater degree than triphenyl phosphine oxidation. Parallel results were observed in solvent kinetic isotope experiments using D2O in the solvent mixture. The rates of oxidation were slowed to a greater degree in silane oxidation by 2 (kH/kD = 17.30) than for phosphine (kH/kD = 6.20). Various silanes and triphenyl phosphine were photocatalytically oxidized with 1 (5%) under irradiation with warm white LEDs using atmospheric oxygen as the terminal oxidant.
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Affiliation(s)
- Irving D Rettig
- Department of Chemistry, Portland State University, Portland, Oregon 97201, USA.
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16
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Ishii A, Nakata N. Synthesis and Photophysical Property of 1-Chalcogeno-1,3-butadiene Derivatives and the Related Compounds Incorporated in a Dibenzobarrelene Skeleton. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.1042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Akihiko Ishii
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University
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17
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Torres Delgado W, Braun CA, Boone MP, Shynkaruk O, Qi Y, McDonald R, Ferguson MJ, Data P, Almeida SKC, Aguiar ID, de Souza GLC, Brown A, He G, Rivard E. Moving Beyond Boron-Based Substituents To Achieve Phosphorescence in Tellurophenes. ACS APPLIED MATERIALS & INTERFACES 2018; 10:12124-12134. [PMID: 28968055 DOI: 10.1021/acsami.7b11628] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Previous research in our group showed that tellurophenes with pinacolboronate (BPin) units at the 2- and/or 5-positions displayed efficient phosphorescence in the solid state, both in the presence of oxygen and water. In this current study, we show that luminescence from a tellurophene is possible when various aryl-based substituents are present, thus greatly expanding the family of known (and potentially accessible) Te-based phosphors. Moreover, for the green phosphorescent perborylated tellurium heterocycle, 2,3,4,5-TeC4BPin4 (4BTe), oxygen-mediated quenching of phosphorescence is an important contributor to the lack of emission in solution (when exposed to air); thus, this system displays aggregation-enhanced emission (AEE). These discoveries should facilitate the future design of color tunable tellurium-based luminogens.
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Affiliation(s)
- William Torres Delgado
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
| | - Christina A Braun
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
| | - Michael P Boone
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
| | - Olena Shynkaruk
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
| | - Yanyu Qi
- Center for Materials Chemistry, Frontier Institute of Science and Technology , Xi'an Jiaotong University , Xi'an , Shaanxi 710054 , People's Republic of China
| | - Robert McDonald
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
| | - Michael J Ferguson
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
| | - Przemyslaw Data
- Department of Physics , Durham University , Durham , U.K. DH1 3LE
- Faculty of Chemistry , Silesian University of Technology , Strzody 9 , Gliwice , Poland 44-100
| | - Shawan K C Almeida
- Departamento de Química , Universidade Federal de Mato Grosso , Cuiabá , Mato Grosso 78060-900 , Brazil
| | - Inara de Aguiar
- Departamento de Química , Universidade Federal de Mato Grosso , Cuiabá , Mato Grosso 78060-900 , Brazil
| | - Gabriel L C de Souza
- Departamento de Química , Universidade Federal de Mato Grosso , Cuiabá , Mato Grosso 78060-900 , Brazil
| | - Alex Brown
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
| | - Gang He
- Center for Materials Chemistry, Frontier Institute of Science and Technology , Xi'an Jiaotong University , Xi'an , Shaanxi 710054 , People's Republic of China
| | - Eric Rivard
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
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18
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Parke SM, Narreto MAB, Hupf E, McDonald R, Ferguson MJ, Hegmann FA, Rivard E. Understanding the Origin of Phosphorescence in Bismoles: A Synthetic and Computational Study. Inorg Chem 2018; 57:7536-7549. [PMID: 29553730 DOI: 10.1021/acs.inorgchem.8b00149] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A series of bismuth heterocycles, termed bismoles, were synthesized via the efficient metallacycle transfer (Bi/Zr exchange) involving readily accessible zirconacycles. The luminescence properties of three structurally distinct bismoles were explored in detail via time-integrated and time-resolved photoluminescence spectroscopy using ultrafast laser excitation. Moreover, time-dependent density functional theory computations were used to interpret the nature of fluorescence versus phosphorescence in these bismuth-containing heterocycles and to guide the future preparation of luminescent materials containing heavy inorganic elements. Specifically, orbital character at bismuth within excited states is an important factor for achieving enhanced spin-orbit coupling and to promote phosphorescence. The low aromaticity of the bismole rings was demonstrated by formation of a CuCl π-complex, and the nature of the alkene-CuCl interaction was probed by real-space bonding indicators derived from Atoms-In-Molecules, the Electron Localizability Indicator, and the Non-Covalent Interaction index; such tools are of great value in interpreting nonstandard bonding environments within inorganic compounds.
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Affiliation(s)
- Sarah M Parke
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Mary A B Narreto
- Department of Physics , University of Alberta , Edmonton , Alberta T6G 2E1 , Canada
| | - Emanuel Hupf
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Robert McDonald
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Michael J Ferguson
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Frank A Hegmann
- Department of Physics , University of Alberta , Edmonton , Alberta T6G 2E1 , Canada
| | - Eric Rivard
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
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19
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Fukazawa A, Usuba J, Adler RA, Yamaguchi S. Synthesis of seminaphtho-phospha-fluorescein dyes based on the consecutive arylation of aryldichlorophosphines. Chem Commun (Camb) 2018; 53:8565-8568. [PMID: 28715003 DOI: 10.1039/c7cc04323f] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Seminaphtho-phospha-fluorescein (SNAPF), a phosphine-oxide-containing unsymmetric fluorescein dye, was synthesized based on the consecutive arylation of PhPCl2, followed by Friedel-Crafts cyclization. The resulting SNAPF exhibited several attractive photophysical properties including an intense fluorescence in the NIR region and a large Stokes shift.
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Affiliation(s)
- Aiko Fukazawa
- Department of Chemistry, Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
| | - Junichi Usuba
- Department of Chemistry, Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
| | - Raúl A Adler
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
| | - Shigehiro Yamaguchi
- Department of Chemistry, Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan. and Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
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20
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Abstract
The 4H-1,4-telluraborine is a shown to be a versatile reagent undergoing both protonolysis and hydroboration, affording a new range of 1,4-telluraborine derivatives.
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Affiliation(s)
- Fu An Tsao
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
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21
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Carrera EI, Seferos DS. Ring Opening of π-Delocalized 2,5-Diphenyltellurophene by Chemical or Self-Sensitized Aerobic Photooxidation. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00240] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Elisa I. Carrera
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Dwight S. Seferos
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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22
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Lutkus LV, Rettig ID, Davies KS, Hill JE, Lohman JE, Eskew MW, Detty MR, McCormick TM. Photocatalytic Aerobic Thiol Oxidation with a Self-Sensitized Tellurorhodamine Chromophore. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00166] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Luke V. Lutkus
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - Irving D. Rettig
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - Kellie S. Davies
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, United States
| | - Jacqueline E. Hill
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, United States
| | - James E. Lohman
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - Mathew W. Eskew
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - Michael R. Detty
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, United States
| | - Theresa M. McCormick
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
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23
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Tsao FA, Stephan DW. Facile access to unsymmetrically substituted tellurium–boron based heterocycles. Chem Commun (Camb) 2017; 53:6311-6314. [DOI: 10.1039/c7cc03648e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Protonolysis and alkyne exchange reactions are used to give unsymmetrically substituted Te–B based heterocycles.
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Affiliation(s)
- Fu An Tsao
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
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24
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Ishii A, Shibata M, Nakata N. 1,4-Diaryl-1-oxy-1,3-butadiene Conjugated System Incorporated in a Dibenzobarrelene Skeleton: Synthesis, Photophysical Properties, and Comparison with the Heavier Group 16 Congeners. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2016. [DOI: 10.1246/bcsj.20160287] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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25
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Torres Delgado W, Shahin F, Ferguson MJ, McDonald R, He G, Rivard E. Selective Placement of Bromide and Pinacolboronate Groups about a Tellurophene: New Building Blocks for Optoelectronic Applications. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00362] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- William Torres Delgado
- Department
of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada, T6G 2G2
| | - Fatemeh Shahin
- Department
of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada, T6G 2G2
| | - Michael J. Ferguson
- Department
of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada, T6G 2G2
| | - Robert McDonald
- Department
of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada, T6G 2G2
| | - Gang He
- Center
for Materials Chemistry, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi 710054, People’s Republic of China
| | - Eric Rivard
- Department
of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada, T6G 2G2
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26
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Fukazawa A, Suda S, Taki M, Yamaguchi E, Grzybowski M, Sato Y, Higashiyama T, Yamaguchi S. Phospha-fluorescein: a red-emissive fluorescein analogue with high photobleaching resistance. Chem Commun (Camb) 2016; 52:1120-3. [PMID: 26617335 DOI: 10.1039/c5cc09345g] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Phospha-fluorescein (POF), a phosphine oxide-containing analogue of fluorescein, was synthesized and its photophysical properties were examined. Compared with fluorescein and sila-fluorescein, POF displayed significantly red-shifted absorption and fluorescence as well as superior photobleaching resistance, while retaining the pH-responsive characteristics of fluorescein dyes.
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Affiliation(s)
- Aiko Fukazawa
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
| | - Shinji Suda
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
| | - Masayasu Taki
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
| | - Eriko Yamaguchi
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
| | - Marek Grzybowski
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
| | - Yoshikatsu Sato
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
| | - Tetsuya Higashiyama
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan and Division of Biological Science, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
| | - Shigehiro Yamaguchi
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan. and Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
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27
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Carrera EI, Lanterna AE, Lough AJ, Scaiano JC, Seferos DS. A Mechanistic Study of Halogen Addition and Photoelimination from π-Conjugated Tellurophenes. J Am Chem Soc 2016; 138:2678-89. [PMID: 26853739 DOI: 10.1021/jacs.5b11649] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The ability to drive reactivity using visible light is of importance for many disciplines of chemistry and has significant implications for sustainable chemistry. Identifying photochemically active compounds and understanding photochemical mechanisms is important for the development of useful materials for synthesis and catalysis. Here we report a series of photoactive diphenyltellurophene compounds bearing electron-withdrawing and electron-donating substituents synthesized by alkyne coupling/ring closing or palladium-catalyzed ipso-arylation chemistry. The redox chemistry of these compounds was studied with respect to oxidative addition and photoelimination of bromine, which is of importance for energy storage reactions involving X2. The oxidative addition reaction mechanism was studied using density functional theory, the results of which support a three-step mechanism involving the formation of an initial η(1) association complex, a monobrominated intermediate, and finally the dibrominated product. All of the tellurophene derivatives undergo photoreduction using 430, 447, or 617 nm light depending on the absorption properties of the compound. Compounds bearing electron-withdrawing substituents have the highest photochemical quantum efficiencies in the presence of an alkene trap, with efficiencies of up to 42.4% for a pentafluorophenyl-functionalized tellurophene. The photoelimination reaction was studied in detail through bromine trapping experiments and laser flash photolysis, and a mechanism is proposed. The photoreaction, which occurs by release of bromine radicals, is competitive with intersystem crossing to the triplet state of the brominated species, as evidenced by the formation of singlet oxygen. These findings should be useful for the design of new photochemically active compounds supported by main-group elements.
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Affiliation(s)
- Elisa I Carrera
- Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Anabel E Lanterna
- Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa , 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Alan J Lough
- Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Juan C Scaiano
- Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa , 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Dwight S Seferos
- Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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28
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Chai X, Cui X, Wang B, Yang F, Cai Y, Wu Q, Wang T. Near-Infrared Phosphorus-Substituted Rhodamine with Emission Wavelength above 700 nm for Bioimaging. Chemistry 2015; 21:16754-8. [PMID: 26420515 DOI: 10.1002/chem.201502921] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Indexed: 12/21/2022]
Abstract
Phosphorus has been successfully fused into a classic rhodamine framework, in which it replaces the bridging oxygen atom to give a series of phosphorus-substituted rhodamines (PRs). Because of the electron-accepting properties of the phosphorus moiety, which is due to effective σ*-π* interactions and strengthened by the inductivity of phosphine oxide, PR exhibits extraordinary long-wavelength fluorescence emission, elongating to the region above 700 nm, with bathochromic shifts of 140 and 40 nm relative to rhodamine and silicon-substituted rhodamine, respectively. Other advantageous properties of the rhodamine family, including high molar extinction coefficient, considerable quantum efficiency, high water solubility, pH-independent emission, great tolerance to photobleaching, and low cytotoxicity, stay intact in PR. Given these excellent properties, PR is desirable for NIR-fluorescence imaging in vivo.
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Affiliation(s)
- Xiaoyun Chai
- Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai 200433 (P.R. China)
| | - Xiaoyan Cui
- Department of Chemistry, New York University, New York, New York 10003 (USA)
| | - Baogang Wang
- Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai 200433 (P.R. China)
| | - Fan Yang
- Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai 200433 (P.R. China).,College of Pharmacy, Yantai University, Yantai, Shandong 264005 (P.R. China)
| | - Yi Cai
- Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai 200433 (P.R. China).,College of Pharmacy, Yantai University, Yantai, Shandong 264005 (P.R. China)
| | - Qiuye Wu
- Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai 200433 (P.R. China)
| | - Ting Wang
- Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai 200433 (P.R. China).
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29
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Rivard E. Tellurophenes and Their Emergence as Building Blocks for Polymeric and Light-emitting Materials. CHEM LETT 2015. [DOI: 10.1246/cl.150119] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Eric Rivard
- Department of Chemistry, University of Alberta
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30
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Abstract
In an aerobic organism, reactive oxygen species (ROS) are an inevitable metabolic byproduct. Endogenously produced ROS have a significant role in physiological processes, but excess ROS can cause oxidative stress and can damage tissue. Cells possess elaborate mechanisms to regulate their internal redox status. The intracellular redox homeostasis plays an essential role in maintaining cellular function. However, moderate alterations in redox balance can accompany major transitions in a cell's life cycle. Because of the role of ROS in physiology and in pathology, researchers need new tools to study redox chemistry in biological systems.In recent years, researchers have made remarkable progress in developing new, highly sensitive and selective fluorescent probes that respond to redox changes, and in this Account we highlight related research, primarily from our own group. We present an overview of the design, photophysical properties, and fluorescence transduction mechanisms of reported molecules that probe redox changes. We have designed and synthesized a series of fluorescent probes for redox cycles in biological systems relying on the active center of glutathione peroxidase (GPx). We have also constructed probes based on the oxidation and reduction of hydroquinone and of 2,2,6,6-tetramethylpiperidinooxy (TEMPO). Most of these probes exhibit high sensitivity and good selectivity, absorb in the near-infrared, and respond rapidly. Such probes are useful for confocal fluorescence microscopy, a dynamic imaging technique that could allow researchers to observe biologically important ROS and antioxidants in real time. This technique and these probes provide potentially useful tools for exploring the generation, transport, physiological function, and pathogenic mechanisms of ROS and antioxidants.We also describe features that could improve the properties of redox-responsive fluorescent probes: greater photostability; rapid, dynamic, cyclic and ratiometric responses; and broader absorption in the near-IR region. In addition, fluorescent probes that include organochalcogens such as selenium and tellurium show promise for a new class of fluorescent redox probes that are both chemically stable and robustly reversible. However, further investigations of the chemical and fluorescence transduction mechanisms of selenium-based probes in response to ROS are needed.
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Affiliation(s)
- Zhangrong Lou
- State Key Laboratory of Molecular
Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China
| | - Peng Li
- State Key Laboratory of Molecular
Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China
| | - Keli Han
- State Key Laboratory of Molecular
Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China
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31
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Annaka T, Nakata N, Ishii A. Synthesis, Structures, and Temperature-Dependent Photoluminescence of 1,4-Diphenyl-1-telluro-1,3-butadiene Incorporated in a Dibenzobarrelene Skeleton and Derivatives. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00016] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tatsuro Annaka
- Department
of Chemistry,
Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Norio Nakata
- Department
of Chemistry,
Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Akihiko Ishii
- Department
of Chemistry,
Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
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32
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He G, Wiltshire BD, Choi P, Savin A, Sun S, Mohammadpour A, Ferguson MJ, McDonald R, Farsinezhad S, Brown A, Shankar K, Rivard E. Phosphorescence within benzotellurophenes and color tunable tellurophenes under ambient conditions. Chem Commun (Camb) 2015; 51:5444-7. [DOI: 10.1039/c4cc06529h] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The zirconium-mediated syntheses of pinacolboronate (BPin) appended benzo[b]tellurophenes and two phenyl/BPin substituted tellurophene isomers with different colors of emission have been achieved.
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Affiliation(s)
- Gang He
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
| | - Benjamin D. Wiltshire
- Department of Electrical and Computer Engineering
- University of Alberta
- Edmonton
- Canada
| | - Paul Choi
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
| | | | - Shuai Sun
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
| | - Arash Mohammadpour
- Department of Electrical and Computer Engineering
- University of Alberta
- Edmonton
- Canada
| | | | | | - Samira Farsinezhad
- Department of Electrical and Computer Engineering
- University of Alberta
- Edmonton
- Canada
| | - Alex Brown
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
| | - Karthik Shankar
- Department of Electrical and Computer Engineering
- University of Alberta
- Edmonton
- Canada
| | - Eric Rivard
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
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33
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Carrera EI, Seferos DS. Semiconducting Polymers Containing Tellurium: Perspectives Toward Obtaining High-Performance Materials. Macromolecules 2014. [DOI: 10.1021/ma502307b] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Elisa I. Carrera
- Department of Chemistry, University of Toronto, 80 St. George
Street, Toronto, Ontario M5S 3H6, Canada
| | - Dwight S. Seferos
- Department of Chemistry, University of Toronto, 80 St. George
Street, Toronto, Ontario M5S 3H6, Canada
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34
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Kryman MW, Schamerhorn G, Hill J, Calitree BD, Davies KS, Linder MK, Ohulchanskyy TY, Detty MR. Synthesis and Properties of Heavy Chalcogen Analogues of the Texas Reds and Related Rhodamines. Organometallics 2014; 33:2628-2640. [PMID: 24904192 PMCID: PMC4039339 DOI: 10.1021/om500346j] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Indexed: 12/27/2022]
Abstract
Analogues of Texas red incorporating the heavy chalcogens S, Se, and Te atoms in the xanthylium core were prepared from the addition of aryl Grignard reagents to appropriate chalcogenoxanthone precursors. The xanthones were prepared via directed metalation of amide precursors, addition of dichalcogenide electrophiles, and electrophilic cyclization of the resulting chalcogenides with phosphorus oxychloride and triethylamine. The Texas red analogues incorporate two fused julolidine rings containing the rhodamine nitrogen atoms. Analogues containing two "half-julolidine" groups (a trimethyltetrahydroquinoline) and one julolidine and one "half-julolidine" were also prepared. The photophysics of the Texas red analogues were examined. The S-analogues were highly fluorescent, the Se-analogues generated single oxygen (1O2) efficiently upon irradiation, and the Te-analogues were easily oxidized to rhodamines with the telluroxide oxidation state. The tellurorhodamine telluroxides absorb at wavelengths ≥690 nm and emit with fluorescence maxima >720 nm. A mesityl-substituted tellurorhodamine derivative localized in the mitochondria of Colo-26 cells (a murine colon carcinoma cell line) and was oxidized in vitro to the fluorescent telluroxide.
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Affiliation(s)
- Mark W. Kryman
- Department
of Chemistry, University at Buffalo, The
State University of New York, Buffalo, New York 14260-3000, United States
| | - Gregory
A. Schamerhorn
- Department
of Chemistry, University at Buffalo, The
State University of New York, Buffalo, New York 14260-3000, United States
| | - Jacqueline
E. Hill
- Department
of Chemistry, University at Buffalo, The
State University of New York, Buffalo, New York 14260-3000, United States
| | - Brandon D. Calitree
- Department
of Chemistry, University at Buffalo, The
State University of New York, Buffalo, New York 14260-3000, United States
| | - Kellie S. Davies
- Department
of Chemistry, University at Buffalo, The
State University of New York, Buffalo, New York 14260-3000, United States
| | - Michelle K. Linder
- Department
of Chemistry, University at Buffalo, The
State University of New York, Buffalo, New York 14260-3000, United States
| | - Tymish Y. Ohulchanskyy
- Institute
for Lasers, Photonics and Biophotonics, Department of Chemistry, State University of New York, Buffalo, New York 14260-3000, United States
| | - Michael R. Detty
- Department
of Chemistry, University at Buffalo, The
State University of New York, Buffalo, New York 14260-3000, United States
- Institute
for Lasers, Photonics and Biophotonics, Department of Chemistry, State University of New York, Buffalo, New York 14260-3000, United States
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35
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McCormick TM, Carrera EI, Schon TB, Seferos DS. Reversible oxidation of a water-soluble tellurophene. Chem Commun (Camb) 2013; 49:11182-4. [PMID: 24149322 DOI: 10.1039/c3cc47338d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Theresa M McCormick
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada.
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