Article
Chemistry, Organic
K. Aswani Raj, M. Rajeswara Rao
Summary: In this study, a new series of quinoidal fluorophores were designed and developed, exhibiting strong emissions and modulatable emission colors. These compounds represent the first quinoidal dual-state emissive compounds reported to date. Additionally, one of the compounds, Q5, showed halochromism and acted as a selective turn-off fluorescence probe for electron-deficient picric acid.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Qiao He, Aniruddha Basu, Hyojung Cha, Matyas Daboczi, Julianna Panidi, Luxi Tan, Xiantao Hu, Chi Cheng Huang, Bowen Ding, Andrew J. P. White, Ji-Seon Kim, James R. Durrant, Thomas D. Anthopoulos, Martin Heeney
Summary: A new class of J-aggregating materials based on quinoidal indacenodithiophenes (IDTs) with ultra-narrowband NIR absorption peak is reported. The spectral width can be tuned by the length of the solubilizing alkyl group. The J-aggregate behavior is confirmed and their utility as electron-transporting materials is demonstrated.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Maria Isabel Menendez, Nicolas Montenegro-Pohlhammer, Ricardo Pino-Rios, Rodrigo Urzua-Leiva, Simone Morales-Lovera, Merlys Borges-Martinez, Kevin Granados-Tavera, Ramon Lopez, Gloria Cardenas-Jiron
Summary: The photophysical, photovoltaic, and charge transport properties of fused core-modified expanded porphyrins were investigated using density functional theory and time-dependent density functional theory. The compounds showed absorption in the range of 700-970 nm for their Q bands and 500-645 nm for their Soret bands. The presence of thiophene rings in the macrocycle led to a bathochromic shift in the absorption wavelength, resulting in near-infrared absorptions. The charge transport study showed that pentaphyrin 1 and octaphyrin 4 were more conductive than hexaphyrin 2 or heptaphyrin 3.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Marek Grzybowski, Olaf Morawski, Krzysztof Nowak, Paula Garbacz
Summary: Fluorene-based analogues of fluorescein, rhodol, and rhodamine have absorption and fluorescence properties beyond 800-900 nm in water, showing a red-shift of 300-400 nm compared to the original xanthene dyes. This opens up the possibility of using low molecular weight fluorescent markers in the second biological window (NIR-II, ca. 1000-1350 nm).
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Organic
Clotilde Philippe, Anh Thy Bui, Sabrinah Batsongo-Boulingui, Ziemowit Pokladek, Katarzyna Matczyszyn, Olivier Mongin, Loic Lemiegre, Frederic Paul, Trevor A. Hamlin, Yann Trolez
Summary: The study obtained two functionalized small-molecule chromophores by carefully controlling the regioselectivity of the cycloaddition reaction, inducing different Diels-Alder processes. DFT calculations revealed the mechanism of the cycloaddition-retroelectrocyclization reaction sequence and elucidated differing mechanisms in the two substrates. The synthesized dyes exhibited panchromatic absorption extending into the near-IR region and showed far-red/near-IR photoluminescence in the solid state up to 1550 nm.
Article
Chemistry, Organic
Qingbao Gong, Qinghua Wu, Xing Guo, Heng Li, Wanwan Li, Changjiang Yu, Erhong Hao, Lijuan Jiao
Summary: The study presents a straightforward method to synthesize a family of thiophene-fused BODIPY dimers and tetramers by transforming flexible sulfur bridges into coplanar thiophene fusions. FeCl3 was utilized as a bifunctional oxidant for both intra- and intermolecular oxidative aromatic coupling reactions, leading to strong red-shift absorptions ranging from 509 nm for a BODIPY monomer to 830 nm for a tetramer.
Review
Chemistry, Multidisciplinary
Cheng Xu, Kanyi Pu
Summary: Second near-infrared photothermal therapy (NIR-II PTT) has advantages of deeper penetration and less toxicity, but faces challenges of suboptimal photothermal conversion and limited therapeutic efficacy. To improve efficacy, multifunctional NIR-II photothermal inorganic or organic materials have been developed for combination with other therapeutic modalities.
CHEMICAL SOCIETY REVIEWS
(2021)
Review
Multidisciplinary Sciences
Christopher T. Jackson, Sanghwa Jeong, Gabriel F. Dorlhiac, Markita P. Landry
Summary: Near-infrared (NIR) luminescent materials have gained significant interest for imaging and optics applications in biology, chemistry, and physics. Despite potential, their development is hindered by various issues. This review explores emerging trends in promising NIR materials and emphasizes the importance of a comprehensive understanding of their properties for innovative applications in biological and physical sciences.
Article
Nanoscience & Nanotechnology
Yuxuan Hei, Xinwei Zhang, Pengxing He, Eric Jiahan Zhao, Edison Tang, Valerii Sharapov, Xunshan Liu, Luping Yu
Summary: This paper describes the synthesis, photophysical properties, and electrochemical characteristics of three thieno[3,4b]thiophene-based quinoidal oligomers with rigid planar backbones. The oligomers exhibited narrow absorption bands and significantly red-shifted absorption bands when the thieno[3,4b]thiophene units were extended, resulting in wide transparent windows. The compound O4TTO showed strong absorption in the near-infrared region, making it a potential candidate for future NIR photodetectors, filters, and bioimaging technologies.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Applied
Hae Un Kim, Taehyun Kim, Chanhyeok Kim, Taiho Park, Sunyoung Sohn
Summary: This study introduces two novel deep-red to near-infrared (NIR) light-emitting curcuminoid boron difluoride derivatives, tBuPZ and PZ, for organic light-emitting diodes. The maximum external quantum efficiency achieved was 4.11% and 3.92%, respectively, with electroluminescence at 618 nm and a shoulder peak at 673 nm. The correlations between electron-donating strength, emission mechanism, and quantum efficiency were investigated by analyzing the donor characteristics of di-tert-butyl substitution. This study presents a methodology for designing low-toxicity, dye-derived, purely organic NIR light-emitting molecules.
Article
Chemistry, Multidisciplinary
Karolina Hurej, Weronika Oszczeda, Ewelina Opas, Szymon J. Zelewski, Milosz Pawlicki, Michal J. Bialek, Lukasz Orzel, Lechoslaw Latos-Grazynski
Summary: The insertion of palladium(II) into di-p-pyrirubyrin leads to bimetallic complexes that can be converted into each other. Post-synthetic functionalization of one of the complexes introduces the alpha,beta '-pyridin-2-one unit into the macrocyclic frame, and after demetallation, dioxo-di-p-pyrirubyrin is obtained. These complexes, including bispalladium(II) di-p-pyrirubyrin 6, bispalladium(II) dioxo-di-p-pyrirubyrin 9, and dioxo-di-p-pyrirubyrin 10, exhibit excellent photostability and have the potential to be used as near-infrared photoacoustic dyes for Yb-based fiber lasers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Shunsuke Yanagi, Akihisa Matsumoto, Naoyuki Toriumi, Yusuke Tanaka, Kazunori Miyamoto, Atsuya Muranaka, Masanobu Uchiyama
Summary: In this study, two bench-stable BzTAPs with 18 pi- and 20 pi-electron structures were designed and synthesized. It was found that the NIR-inert BzTAP can be converted to the NIR-active form in the presence of mild reducing agents. This finding is significant for the development of activatable NIR probes in reductive environments.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Nisha Oad, Prakash Chandra, Akbar Mohammad, Brijesh Tripathi, Taeho Yoon
Summary: The increase in global consumption of pharmaceutical compounds has led to economic burden and environmental pollution. Conventional treatment techniques can remove these compounds, but MoS2-based heterojunction photocatalytic systems have attracted significant interest due to their unique features. The 2D structure of MoS2-based materials contributes to rapid and stable degradation of pharmaceutical compounds. However, more research is needed to improve the separation of charge carriers and explore the potential of MoS2 for large-scale application.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Huijuan Chen, Weijie Chen, Yan Lin, Yuan Xie, Sheng Hua Liu, Jun Yin
Summary: The development of visible and near-infrared light activated azo switches is crucial for overcoming the limitation of UV light-induced damage to surfaces in functional azo-based materials. This review provides a summary of various molecular design strategies for driving the isomerization of azo derivatives with visible light and near-infrared light.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Organic
Amit Manor Armon, Anjan Bedi, Veniamin Borin, Igor Schapiro, Ori Gidron
Summary: The study found that even when acenes are highly distorted, they still maintain their aromatic character and pi orbital delocalization, with a decrease in energy gap between HOMO and LUMO as twist increases, while bending has little effect on the gap. Spin becomes more localized with increasing bend for bent acenes in the triplet state, whereas twisting produces evenly distributed spin delocalization. These findings can guide the synthesis of PAHs with tailored properties.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Xiaoting Zhu, Yujie Yan, Lingjie Sun, Yiwen Ren, Yihan Zhang, Yang Liu, Xiaotao Zhang, Rongjin Li, Huipeng Chen, Jishan Wu, Fangxu Yang, Wenping Hu
Summary: A novel 1D/2D molecular crystal p-n heterojunction has been developed to produce ultra-sensitive negative phototransistors (NPTs) with remarkable photoresponsivity and detectivity. These NPTs exhibit intriguing characteristics undiscovered in PPTs, opening up new possibilities for optoelectronic applications.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xudong Hou, Giang Truong Nguyen, Tingting Xu, Haipeng Wei, Tun Seng Herng, Guifei Huo, Dingguan Wang, Jun Ding, Shaofei Wu, Liviu Ungur, Jishan Wu
Summary: The incorporation of organic radicals into coordination polymers is a promising strategy for promoting metal-ligand exchange interactions. However, stable organic radical-based ligands are limited in number. In this study, we report two new tris(2,4,6-trichlorophenyl)methyl radical-based ligands and successfully obtain the corresponding coordination polymers. Magnetic measurements and theoretical calculations indicate the presence of antiferromagnetic coupling between the paramagnetic cobalt(II) ions and the radical ligands.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Taiming Zhang, Magdalena Grzeszczyk, Jing Li, Wei Yu, Haomin Xu, Peng He, Liming Yang, Zhizhan Qiu, HuiHui Lin, Huimin Yang, Jian Zeng, Tao Sun, Zejun Li, Jishan Wu, Ming Lin, Kian Ping Loh, Chenliang Su, Kostya S. Novoselov, Alexandra Carvalho, Maciej Koperski, Jiong Lu
Summary: The intrinsic magnetic order in single-layer chromium trihalides has potential applications in spintronic devices, but their environmental instability poses challenges for practical use. By investigating the degradation chemistry of chromium iodide, researchers found that it undergoes hydrolysis and surface oxidation reactions under different environments, leading to its rapid degradation. However, using organic acid solvents as reversible capping agents can effectively stabilize CrI3 nanoflakes for more than a month.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Qi Zhang, Sijia Rao, Sai Vikrama Chaitanya Vummaleti, Eng Tuan Poh, Wenrui Dai, Xinhang Cui, Jishan Wu, Jia Zhang, Wei Chen
Summary: This study enhances the performance of aprotic Li-O-2 batteries by using DB24C8A as an additive to improve the solubility of Li2O2 and promote its efficient decomposition. The results show that this approach significantly increases the capacity and lifespan of the batteries.
ADVANCED ENERGY MATERIALS
(2022)
Correction
Engineering, Chemical
Jishan Wu, Miao Cao, Draco Tong, Zach Finkelstein, Eric M. V. Hoek
Article
Chemistry, Multidisciplinary
Shan Xin, Yi Han, Wei Fan, Xuhui Wang, Yong Ni, Jishan Wu
Summary: The study synthesized three 9-fluorenylidene-substituted expanded [n]radialenes, which can be easily reduced into relatively stable dianions and show unique open-shell diradical character. Comparative analysis with their linear counterparts also revealed different redox and optical properties.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Max J. Hulsey, Victor Fung, Xudong Hou, Jishan Wu, Ning Yan
Summary: Hydrogen spillover is a common phenomenon in chemical processes, but there is still a lack of understanding about its kinetics, the structural evolution of catalysts, and the role of spilled over hydrogen in catalysis. In this study, a solubilized polyoxometalate-supported single-atom catalyst was used to provide insights into these questions. It was found that hydrogen spillover can be either detrimental or beneficial for catalysis, depending on the nature of the reducible functional group. Similar trends were observed on the Pt/WO3 catalyst, which is one of the most prototypical hydrogen spillover catalysts.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Bongyeon Jung, Shengcun Ma, Chia Miang Khor, Noman Khalid Khanzada, Arezou Anvari, Xinyi Wang, Sungju Im, Jishan Wu, Unnati Rao, Alicia Kyoungjin An, Eric M. V. Hoek, David Jassby
Summary: This study presents electrically-conductive nanofiltration (ECNF) membranes that can inhibit mineral scaling with an external electrical source. By applying electrical potentials to the membrane surface, the formation of scaling can be reduced, protecting the membrane and improving water recovery.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Ya Zou, Xudong Hou, Haipeng Wei, Jiawei Shao, Qing Jiang, Longbin Ren, Jishan Wu
Summary: In this study, three derivatives of circumcoronene have been successfully synthesized using Bronsted/Lewis acid-mediated cyclization of vinyl ether or alkyne. Their structures were confirmed via X-ray crystallographic analysis. Bond length analysis, NMR measurement, and theoretical calculations showed that circumcoronene mostly follows Clar's bonding model and exhibits dominant local aromaticity. Its absorption and emission spectra are similar to those of the smaller hexagonal coronene due to its six-fold symmetry.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Gui-Fei Huo, Toshiya M. Fukunaga, Xudong Hou, Yi Han, Wei Fan, Shaofei Wu, Hiroyuki Isobe, Jishan Wu
Summary: A facile synthesis method for expanded helicenes was reported in this study, which involves Suzuki coupling-based oligomerization and Bi(OTf)(3)-mediated regioselective cyclization. The structures of the synthesized compounds were determined by X-ray crystallographic analysis. Enantiopure H2, H3, and H4 with high absorption dissymmetry factors (|g(abs)|) were isolated using chiral HPLC, and all of them exhibited strong chiroptical responses.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Ming-Wei Wang, Wei Fan, Xiaonan Li, Yujian Liu, Zuoyu Li, Wei Jiang, Jishan Wu, Zhaohui Wang
Summary: The creation and development of carbon nanomaterials have greatly advanced material science. Bottom-up synthesis has been an efficient strategy to synthesize atomically precise carbon nanomaterials, known as molecular carbons, with different sizes and topologies. This Perspective introduces recent progress in molecular carbons derived from various carbon nanomaterials and discusses their relationship. The presentation of multiple viewpoints is expected to facilitate further advancement in this field.
Article
Chemistry, Multidisciplinary
Tong Shen, Ya Zou, Xudong Hou, Haipeng Wei, Longbin Ren, Liuying Jiao, Jishan Wu
Summary: This study presents a straightforward synthetic method for a series of ribbon-like polycyclic aromatic hydrocarbons (PAHs) and investigates their structure-dependent electronic properties. The molecules exhibit enhanced electronic absorption and multiple amphoteric redox waves as the chain length increases.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Gabriel Merino, Miquel Sola, Israel Fernandez, Cina Foroutan-Nejad, Paolo Lazzeretti, Gernot Frenking, Harry L. Anderson, Dage Sundholm, Fernando P. Cossio, Marina A. Petrukhina, Jishan Wu, Judy I. Wu, Albeiro Restrepo
Summary: Aromaticity is a deeply rooted concept in chemistry, but there is no consensus on its definition due to the many attributes associated with it. This perspective aims to reflect the current state and future direction of the aromaticity research community.
Article
Chemistry, Multidisciplinary
Zao Wang, Man Wang, Jiajia Song, Jishan Wu, Zhen Li
Summary: In this work, two Ni metal-organic layers (MOLs), Ni-MOL-100 and Ni-MOL-010, were synthesized by tuning the molar ratios of metal ions and organic ligands. It was found that Ni-MOL-100 exhibited higher catalytic activity than Ni-MOL-010 due to its appropriate conduction band potential and more exposure of coordination-unsaturated Ni(ii) ions, which promoted carrier transfer and accelerated the hydrogen evolution reaction rate. This work demonstrates the important role of crystal surface tailoring engineering in the design of photocatalytic hydrogen evolution cocatalysts.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Nanoscience & Nanotechnology
Dingguan Wang, Zishen Wang, Shaofei Wu, Arramel, Xinmao Yin, Chi Sin Tang, Yuan Ping Feng, Jishan Wu, Andrew T. S. Wee
Summary: In this study, we achieved two-dimensional supramolecular spin arrays on surfaces through halogen-bonding molecular self-assembly. By controlling molecular coverage and annealing temperature, three distinct types of halogen bonds were formed to tailor the supramolecular spin arrays. Our work suggests that supramolecular self-assembly can be a promising method to engineer two-dimensional molecular spin arrays.
ACS NANOSCIENCE AU
(2022)
