Article
Chemistry, Multidisciplinary
Aritra Das, Ashwini Danao, Shubhojit Banerjee, A. Mohan Raj, Gaurav Sharma, Rajeev Prabhakar, Varadharajan Srinivasan, V Ramamurthy, Pratik Sen
Summary: Excited anthracene forms supramolecular host-guest complexes with octa acid in aqueous medium, with the 2:2 complex showing intense excimer emission and the 2:1 complex exhibiting only monomer emission. The behavior of anthracene molecules in the excited state is influenced by the host-guest structure and is time-dependent, indicating a change in molecule behavior under confinement.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Energy & Fuels
Di Zhao, Yao Xiong, Yonggang Wang, Beibei Lu, Haiyong Zhang
Summary: In this study, the effective separation of anthracene and carbazole was achieved by synthesizing imidazolium-based ILs. The purity of refining anthracene reached 94.89% and that of crude carbazole reached 81.60%. Additionally, the process allowed for the recovery and recycling of ILs.
Article
Polymer Science
Anas Saifi, Charu Negi, Kamlesh Kumar
Summary: This paper introduces a new type of light-responsive soft actuator, which utilizes a supramolecular strategy for the synthesis of a functionalized anthracene dye, and the dye is mixed with a PVA matrix to achieve blue light responsiveness. The bending angle deformation of this actuator is significantly greater than any previously reported anthracene-based visible light-responsive soft actuators.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Simon Kriegler, Tiffany O. Paulisch, Tristan Wegner, Frank Glorius, Roland Winter
Summary: In this study, bipolar alkylated imidazolium salts of different chain lengths (BIm10-32) were synthesized and their structure and lyotropic phase behavior were studied. It was found that long-chain BImN32 exhibited stability with a fluidizing effect integrated into phospholipid membranes, affecting membrane organization and properties significantly.
Article
Chemistry, Multidisciplinary
Cody J. Perry, Gregory J. O. Beran
Summary: Photomechanical organic crystals can generate mechanical work through solid-state photochemical reactions. This study investigates the influence of substituting hydrogen atoms with fluorine or chlorine at different positions on the photomechanical response, focusing on the [4 + 4] photodimerization of 9-anthracene carboxylic acid. The results reveal that even simple chemical substitutions that maintain the overall crystal packing motif can have unexpected effects on the photochemical response, due to the interplay of intramolecular deformations and intermolecular crystal packing interactions. Additionally, the changes in work density obtained from halogenated species are much smaller compared to changes achieved by varying the crystal packing motif, suggesting that crystal engineering is more effective in increasing the work density of a system.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Xin-Da Huang, Guo-Bin Sun, Yi-Qing Chen, Ge-Hua Wen, Song-Song Bao, Li-Min Zheng
Summary: In this study, metal complexes with two anthracene units were synthesized and their stacking morphology was found to control the occurrence of photochemical reactions and exhibit photochromic behavior. Additionally, a thermally induced phase transition was observed for one of the complexes.
Article
Materials Science, Multidisciplinary
Duane Hean, Luis G. Alde, Michael O. Wolf
Summary: Hemithioindigos are a type of emerging photoswitches that can undergo [2+2] cycloaddition or reversible photoisomerization reactions. In this work, a hemithioindigo photoswitch modified with an anthracene moiety, HTI-An, was found to selectively undergo a reversible Z-E photoisomerization reaction in solution and in the crystalline state, showing photochromic and thermosalient responses to UV light and heating. The (E)-HTI-An crystals exhibits a photosalient response under visible light exposure, with thermal isomerization reversion occurring at 180 degrees C while maintaining crystal structural integrity. The study adds HTI-An as a photosalient and thermosalient responsive photoswitch to the library of stimuli-responsive mechanical compounds.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Biochemistry & Molecular Biology
Kristina Kristinaityte, Mateusz Urbanczyk, Adam Mames, Mariusz Pietrzak, Tomasz Ratajczyk
Summary: Anthracenes are important in chemistry and materials sciences for their unique structure and reactivity. Photodimerization of anthracenes can lead to novel photoresponsive materials. This study utilized NMR spectroscopy to investigate the photodimerization of two anthracenes, showing differences in reaction rates when studied separately or in a mixture. Additionally, the study of mixtures provided insight into relative reactivity and improved understanding of the photodimerization processes for potential applications in material sciences.
Article
Polymer Science
Zhanyao Hou, Werner M. Nau, Richard Hoogenboom
Summary: A new supramolecular hydrogel that can transform into a covalently crosslinked hydrogel upon UV irradiation was developed. The presence of a cationic charge on anthracene side chains enhanced the binding affinity, facilitating hydrogel formation at lower concentrations. UV irradiation at different wavelengths demonstrated the reversible conversion to a chemical hydrogel, losing the dynamic nature responsible for shear-thinning behavior.
Article
Chemistry, Physical
Miho Aizawa, Haruhisa Akiyama, Yoko Matsuzawa
Summary: This article presents a stimulus-responsive molecular layer designed with an anthracene derivative for repeated control of surface properties. The method involves switching the covalent bonding of anthracene through photodimerization and thermal/photocleavage reactions to control the composition of the molecular layer. The stimulus-responsive surface functions of this material have the potential to be applied in adhesion and friction fields.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Analytical
Chenchira Pherkkhuntod, Vuthichai Ervithayasuporn, Supphachok Chanmungkalakul, Chao Wang, Xiaogang Liu, David J. Harding, Suda Kiatkamjornwong
Summary: Highly water-soluble fluorescent polyaromatic-based imidazolium compounds have been reported to detect a wide range of nitroaromatics in aqueous solution with fully quenched fluorescence. Increased affinity and sensitivity towards nitrophenols were achieved by enhancing the hydrophobicity and pi-pi stacking of the probe.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Physical
Joost Brancart, Jonas Van Damme, Filip Du Prez, Guy Van Assche
Summary: The chemical structure and location of substituents on anthracene derivatives have a significant impact on their thermal dissociation kinetics, leading to different thermal stability and dissociation behavior in photodimers. The electronic effects of substituents affect the thermal dissociation kinetics, with stronger electron-withdrawing effects resulting in larger red shifts of the maximum wavelength in photodimerization. The electronic effects of substituents play a key role in the thermal and photochemical reactivity of anthracene derivatives, allowing for tuning of their responsiveness for applications such as polymer networks.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Miho Aizawa, Haruhisa Akiyama, Yoko Matsuzawa
Summary: The selection of functional groups of stacked molecules is crucial for controlling surface properties. Introduction of anthracenes enables the formation of a stimuli-responsive surface. The fabrication process involves acid-base interactions to form multilayers with different functions, inducing thermal/photocleavage reactions in the stacked molecular layer and changing surface wettability in response to stimulation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Applied
Hyukmin Kwon, Seokwoo Kang, Sunwoo Park, Hayoon Lee, Jongwook Park
Summary: Three newly synthesized fluorescent triple-core emitters with optimized electron-donating groups showed high thermal stability and potential for mobile phone applications.
Article
Chemistry, Multidisciplinary
Federica Novelli, Marcos Vilela, Antia Pazo, Manuel Amorin, Juan R. Granja
Summary: A new method utilizing light-induced [4+4] photocycloaddition was described to form bent tubular structures using cyclic peptide nanotubes. The designed nanotubes are composed of beta- and alpha-amino acids, with the structural changes induced by interdigitated arrangement and homogeneous distribution of anthracene pendants resulting in geometrical modifications in the nanotubes packing.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Shubhajit Das, Roland C. Turnell-Ritson, Paul J. Dyson, Clemence Corminboeuf
Summary: Despite recent progress in the chemistry of frustrated Lewis pairs (FLPs), direct FLP-catalyzed hydrogenation of CO2 remains elusive. The authors propose a mapping method to link the chemical composition of FLPs with their activity in catalytic hydrogenation of CO2, and they experimentally validate a combination with high catalytic turnover.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Pavel Culik, Keith Brooks, Cristina Momblona, Martin Adams, Sachin Kinge, Francois Marechal, Paul J. Dyson, Mohammad Khaja Nazeeruddin
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Physical
Gabriela Gastelu, David Savary, Martin Hulla, Daniel Ortiz, Jorge G. Uranga, Paul J. Dyson
Summary: The article introduces an alternative reaction pathway for the O-formylation of alcohols and bio-alcohols, which produces industrially relevant formate esters. The reaction is catalyzed by formic acid, which can be produced from CO2 captured in the reaction. The in situ produced formic acid improves the reaction rate, and each catalyst can be recycled for reuse.
Editorial Material
Chemistry, Organic
Xiao-Feng Wu, Paul J. Dyson, Bruce A. Arndtsen
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Lorenzo Pietracci, Riccardo Pettinari, Alessia Tombesi, Fabio Marchetti, Claudio Pettinari, Agustiïn Galindo, Farzaneh Fadaei-Tirani, Mouna Hadiji, Paul J. Dyson
Summary: This study investigates the coordination mechanisms of pyrazolone ligands containing a pyridine ring with the (Ru(II)) fragment through experimental and theoretical calculations. The ligands were found to coordinate in an unusual N,O-chelating fashion with Ru(II), and various complexes were synthesized. The study provides important insights into the properties of the ligands and complexes.
Article
Chemistry, Inorganic & Nuclear
Alfonso Annunziata, Maria Elena Cucciolito, Maddalena Di Ronza, Giarita Ferraro, Mouna Hadiji, Antonello Merlino, Daniel Ortiz, Rosario Scopelliti, Farzaneh Fadaei Tirani, Paul J. Dyson, Francesco Ruffo
Summary: This article reports a series of Ruthenium(II) complexes with a three-legged piano-stool structure based on an arene ring and an N-heterocyclic carbene(NHC)-carbene ligand with a peracetylated glucose moiety. The complexes undergo hydrolysis in water and show reactivity towards model nucleophiles and biological macromolecules. However, they exhibit low anti-tumor activity against human ovarian carcinoma cells and cisplatin-resistant cells.
Article
Chemistry, Multidisciplinary
Shunlin Zhang, Yuxin Xie, Rosie J. J. Somerville, Farzaneh Fadaei Tirani, Rosario Scopelliti, Zhaofu Fei, Dunru Zhu, Paul J. J. Dyson
Summary: This study reports a new family of proton conductors based on MIL-101 and protic ionic liquid polymers (PILPs) containing different anions. The PILP@MIL-101 composites maintain the nanoporous cavities and water stability of MIL-101, while providing much-improved proton transport. The PILP@MIL-101 composite with HSO4- anions shows superprotonic conductivity (6.3 x 10(-2) S cm(-1)) at 85 degrees C and 98% relative humidity.
Article
Chemistry, Multidisciplinary
Haodan Guo, Yanyan Fang, Yan Lei, Jinpeng Wu, Minghua Li, Xiangrong Li, Hong Bo Cheng, Yuan Lin, Paul J. Dyson
Summary: This study demonstrates the use of a self-assembled ionic insulating layer to improve the performance of wide-bandgap perovskite solar cells. The layer effectively suppresses halide phase separation, reducing open-circuit voltage loss and improving device stability.
Article
Multidisciplinary Sciences
Mingyang Liu, Paul J. Dyson
Summary: Efficient valorization of lignin, a sustainable and renewable source, is essential for reducing dependence on fossil-derived feedstocks. This study presents a highly efficient strategy for extracting aromatic monomers and generating functionalized diaryl ethers from lignin using oxidative cross-coupling reactions.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Gabriela Gastelu, Pritha Saha, Paul J. Dyson, Martin Hulla, Jorge G. Uranga
Summary: Autocatalytic reactions play a key role in the beginning of life and carbon capture and utilization, providing inspiration for the development of advanced systems for the synthesis of value-added chemicals.
Article
Chemistry, Multidisciplinary
Yue Hu, Xinmin Li, Mingyang Liu, Stephan Bartling, Henrik Lund, Paul J. Dyson, Matthias Beller, Rajenahally V. Jagadeesh
Summary: Catalytic hydrodeoxygenation is a crucial technology for converting biomass-based feedstocks into essential chemicals and fuels. This study reports the preparation and application of Ni nanoparticles supported on ZSM-5 as an efficient hydrodeoxygenation catalyst. The Ni-based nanoparticles exhibit selective hydrodeoxygenation of various functional substrates, showcasing their versatility.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Patrick Doerflinger, Yong Ding, Valentin Schmid, Melina Armer, Roland C. Turnell-Ritson, Bin Ding, Paul J. Dyson, Mohammad Khaja Nazeeruddin, Vladimir Dyakonov
Summary: This study investigates the effect of a stabilizing additive on the charge carrier mobility and lifetime in triple cation perovskite thin films under thermal stress. The results reveal different conductivity behaviors in two temperature regions and identify two dominant scattering mechanisms. The stabilizing additive limits temperature-activated mobile ions and retards degradation of the perovskite film, leading to improved performance and stability.
Article
Chemistry, Inorganic & Nuclear
Sarah A. P. Pereira, Jan Romano-deGea, Ana Isabel Barbosa, Sofia A. Costa A. Lima, Paul J. J. Dyson, M. Lucia M. F. S. Saraiva
Summary: The study demonstrates that ruthenium-based compounds, especially [Ru(& eta;(6)-toluene)(PPh3)(2)Cl]Cl, show high selectivity and cytotoxicity against breast cancer cells. This compound has potential as a promising candidate for breast cancer treatment.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Alberto Gobbo, Sarah A. P. Pereira, Lorenzo Biancalana, Stefano Zacchini, M. Lucia M. F. S. Saraiva, Paul J. Dyson, Fabio Marchetti
Summary: Compared with Ru-II-arene compounds, the medicinal potential of homologous Ru-II-tpm compounds [tpm = tris(pyrazolyl)methane] is not well explored. A series of [RuCl(kappa(3)-tpm)(PPh3)(L)]Cl complexes were synthesized by reacting pyridine, 4-pyridinemethanol, and four functionalized pyridines with the precursor [RuCl(kappa(3)-tpm)(PPh3)(2)]Cl. The complexes exhibited antiproliferative activity against cancerous cell lines and inhibition towards COX-2 and GSTP1 enzymes.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Noemi Pagliaricci, Riccardo Pettinari, Fabio Marchetti, Claudio Pettinari, Loredana Cappellacci, Alessia Tombesi, Massimiliano Cuccioloni, Mouna Hadiji, Paul J. Dyson
Summary: In this study, a series of half-sandwich ruthenium(ii) complexes with curcuminoid ligands were prepared and investigated for their cytotoxic activities. The introduction of a long hydrophobic chain by replacing the OH-groups in curcumin and bisdemethoxycurcumin with palmitic acid ester was found to enhance the cytotoxicity. The complexes showed potent and selective cytotoxic activity against ovarian carcinoma cells and their cisplatin-resistant form.
DALTON TRANSACTIONS
(2022)
