Review
Chemistry, Multidisciplinary
Shuhong Wu, Yi Pan, Huan Lin, Liuyi Li, Xianzhi Fu, Jinlin Long
Summary: This Minireview introduces state-of-the-art COF photocatalysts based on different linkages and discusses the origin of photocatalytic activities for hydrogen evolution. It focuses on advancements in synthetic methodologies, structural design, and photoelectronic properties relevant to photocatalytic performance of three typical COF photocatalysts with different linkages (-C=N-, O=C-C=C-NH-, and -C=C-). The review is expected to elucidate structure-property relationships and provide insights for designing photoactive COFs with enhanced performances.
Article
Chemistry, Physical
Ruowei Lu, Cheng Liu, Yanxia Chen, Lichuan Tan, Guangsong Yuan, Peng Wang, Cuijuan Wang, Hongjian Yan
Summary: In this study, three tunable COF platforms with different linkages were constructed to investigate their visible-light photocatalytic hydrogen production (PHP) performance. It was found that the dianhydride substituted imide-COF (PMDA-COF) showed a sustainable and stable PHP rate under visible light irradiation, along with excellent photo-generated charge separation capabilities. The D-A molecular heterojunction in PMDA-COF plays a crucial role in modifying the electronic band structure and separating the reduction and oxidation sites.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Shuailong Yang, Rongjian Sa, Hong Zhong, Haowei Lv, Daqiang Yuan, Ruihu Wang
Summary: In this study, a nickel-modified COF was reported to enhance the photocatalytic reduction of CO2 by modifying the linkage microenvironment.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Shuailong Yang, Haowei Lv, Hong Zhong, Daqiang Yuan, Xinchen Wang, Ruihu Wang
Summary: Covalent organic frameworks (COFs) are promising platforms for solar-to-chemical energy conversion. However, their poor chemical stability and weak optoelectronic properties need to be improved. In this study, a simple post-treatment method was used to enhance the stability and photophysical properties of a COF, leading to improved photocatalytic hydrogen evolution efficiency.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Inorganic & Nuclear
Sanjit Das, Dinesh Nugegoda, Wenzhi Yao, Fengrui Qu, Matthew T. Figgins, Robert W. Lamb, Charles Edwin Webster, Jared H. Delcamp, Elizabeth T. Papish
Summary: A new method for synthesizing complexes of the type [(CNC)Ru-II(NN)L](n+) has been introduced and a series of six new complexes have been characterized. The study shows that catalysts with benzimidazole derived CNC pincers exhibit better activity in photocatalysis, and a diimine ligand is required for self-sensitized photocatalysis.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Engineering, Environmental
Li-Juan Gong, Li-Yao Liu, Shao-Shuai Zhao, Shuai-Long Yang, Duan-Hui Si, Qiu-Jin Wu, Qiao Wu, Yuan-Biao Huang, Rong Cao
Summary: Efficient charge transfer and photocatalytic CO2 reduction were achieved by integrating the photosensitizer [Ru(bpy)3]2+ and active cobalt porphyrin sites into a covalent organic framework (COF), named COF-RuBpy-Co. The catalyst COF-RuBpyCo exhibited excellent CO2 photoreduction activity with a rate of 547 mu mol g(-1)h(-1), which is a 1.4-fold enhancement compared to the physical mixture of Ru(bpy)(3)Cl-2 and COF-Bpy-Co. This study provides insights into the charge carrier transfer process and highlights the potential of COFs in artificial photosynthesis.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Leigh Anna Hunt, Sanjit Das, Robert W. Lamb, Dinesh Nugegoda, Christine Curiac, Matthew T. Figgins, Ethan C. Lambert, Fengrui Qu, Nathan I. Hammer, Jared H. Delcamp, Charles Edwin Webster, Elizabeth T. Papish
Summary: A series of ruthenium (II) complexes with a tridentate CNC pincer ligand, a bidentate 2,2'-bipyridine ligand, and a monodentate ligand (chloride, bromide, or acetonitrile) were synthesized. These complexes were used as catalysts for visible-light-driven CO2 reduction and were studied for their mechanism and performance through spectroscopy and computational analysis.
Review
Engineering, Environmental
Shimei Li, Jian Zou, Longfei Tan, Zhongbing Huang, Ping Liang, Xianwei Meng
Summary: In this article, we provide a detailed review of covalent organic frameworks (COFs) as an emerging class of crystal materials with unique properties. We summarize the different types of chemical linkages used in the formation of COFs and classify them. The biomedical applications of COFs, such as cargo carriers, cancer therapy, biosensing, and biocatalysis, are outlined. The prospects and challenges for further expanding the application value of COFs are also discussed.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Inorganic & Nuclear
Sourav De, Sabnaz Kazi, Sabyasachi Banerjee, Subhasis Banerjee, Nandan Sarkar, Suraj Kumar Shah, Yung-Chih Kuo, S. K. Ashok Kumar
Summary: This article reviews the literature on the cytotoxic effects and cellular uptake of metal complexes such as ruthenium, iridium, rhodium, and rhenium, with a particular focus on recently developed metal-based complexes. These complexes primarily target DNA and mitochondria, inducing cancer cell apoptosis to reduce adverse drug reactions.
COORDINATION CHEMISTRY REVIEWS
(2024)
Article
Chemistry, Inorganic & Nuclear
Joseph P. A. Ostrowski, Ashley J. Wooles, Stephen T. Liddle
Summary: Two new thorium-rhenium and thorium-ruthenium compounds were synthesized through alkane elimination reactions, with crystalline yields of 71% and 62% respectively. The molecular Th-Re and Th-Ru bonds were structurally characterized and found to be more ionic than the corresponding U-Re and U-Ru bonds, as indicated by quantum chemical calculations validated by IR and Raman spectroscopic data.
Article
Chemistry, Multidisciplinary
Hiwa K. Saeed, Paul J. Jarman, Sreejesh Sreedharan, Rachel Mowll, Alexander J. Auty, Adrien A. P. Chauvet, Carl G. W. Smythe, Jorge Bernardino de la Serna, Jim A. Thomas
Summary: The synthesis of a new heterodinuclear metallointercalator containing Ru-II(dppz) and Re-I(dppn) moieties is reported. Cell-free studies show that the complex has similar photophysical properties and DNA binding affinity as its homoleptic M(dppz) analogue. However, it exhibits different in-cell properties, accumulating preferentially in mitochondria and displaying phototoxicity. These observations demonstrate the impact of small structural changes on the mechanism of action of metal-based therapeutic leads.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Alice Palo, Giuseppina La Ganga, Francesco Nastasi, Massimo Guelfi, Marco Bortoluzzi, Guido Pampaloni, Fausto Puntoriero, Sebastiano Campagna, Fabio Marchetti
Summary: Mononuclear and dinuclear ruthenium complexes incorporating potentially catalytic and photosensitive subunits were synthesized and characterized. Some compounds showed catalytic water oxidation activity, while others did not exhibit catalytic processes due to the high oxidation potential induced by specific structural moieties.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Hunter Shirley, Thomas More Sexton, Nalaka P. Liyanage, Morgan A. Perkins, Shane A. Autry, Louis E. McNamara, Nathan I. Hammer, Sean R. Parkin, Gregory S. Tschumper, Jared H. Delcamp
Summary: The study demonstrates that electron withdrawing substituents in the pyNHC-aryl ligand and extending conjugation along the backbone of the ligand can impact the photocatalytic CO2 reduction reaction. A strong correlation is observed between excited-state lifetimes, photocatalytic rates, and computationally determined dissociation energy of the labile ligand in the complexes.
Article
Chemistry, Multidisciplinary
Yue Wang, Yuan-Zhe Cheng, Ke-Ming Wu, Dong-Hui Yang, Xin-Feng Liu, Xuesong Ding, Bao-Hang Han
Summary: Covalent organic frameworks (COFs) show promise as organic luminescent materials due to their structural designability and tunability of photophysical properties. The photophysical properties of COFs are influenced by their structural features, which dictate the conjugation degree, charge delocalization ability, and exciton dynamics. By comparing two COFs with the same pyrene chromophore units but different linkages (imine or vinylene), significantly different solid-state photoluminescence quantum yields (PLQYs) were observed: 0.34% for imine-linked COF and 15.43% for vinylene-linked COF. The differences in charge transfer pathways between the two linkages influence exciton relaxation and fluorescence intensity. Additionally, a white-light device was successfully obtained by coating the vinylene-linked COF on a light-emitting diode strip.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Sizhuo Yang, Chongqing Yang, Chaochao Dun, Haiyan Mao, Rebecca Shu Hui Khoo, Liana M. Klivansky, Jeffrey A. Reimer, Jeffrey J. Urban, Jian Zhang, Yi Liu
Summary: Covalent organic frameworks (COFs) have shown great potential for various advanced applications due to their unique structure. Researchers have developed a synthetic approach that introduces nitrogen-containing heterocycles into COFs, leading to the introduction of new functionalities. This general strategy opens up possibilities for a broader range of functional porous crystalline materials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Haoyang Yu, Tobias Helbich, Lavinia M. Scherf, Jian Chen, Kai Cui, Thomas F. Faessler, Bernhard Rieger, Jonathan G. C. Veinot
CHEMISTRY OF MATERIALS
(2018)
Article
Chemistry, Multidisciplinary
Christina Schwarzenboeck, Andreas Schaffer, Elfriede Noessner, Peter J. Nelson, Ralf Huss, Bernhard Rieger
CHEMISTRY-A EUROPEAN JOURNAL
(2018)
Article
Chemistry, Multidisciplinary
Julian Kehrle, Tapas K. Purkait, Simon Kaiser, Konstantinos N. Raftopoulos, Malte Winnacker, Theresa Ludwig, Maryam Aghajamali, Marianne Hanzlik, Katia Rodewald, Tobias Helbich, Christine M. Papadakis, Jonathan G. C. Veinot, Bernhard Rieger
Article
Polymer Science
Christina Schwarzenboeck, Sergei I. Vagin, Werner R. Heinz, Peter J. Nelson, Bernhard Rieger
MACROMOLECULAR RAPID COMMUNICATIONS
(2018)
Article
Polymer Science
Martin R. Machat, Dominik Lanzinger, Markus Drees, Philipp J. Altrnann, Eberhardt Herdtweck, Bernhard Rieger
Article
Nanoscience & Nanotechnology
Arzu Angi, Regina Sinelnikov, Hendrik H. Heenen, Al Meldrum, Jonathan G. C. Veinot, Christoph Scheurer, Karsten Reuter, Or Ashkenazy, Doron Azulay, Isaac Balberg, Oded Millo, Bernhard Rieger
Article
Polymer Science
Christina Schwarzenboeck, Andreas Schaffer, Philipp Pahl, Peter J. Nelson, Ralf Huss, Bernhard Rieger
Article
Clinical Neurology
Hongzhen Jiang, Kerim Hakan Sitoci-Ficici, Clemens Reinshagen, Marek Molcanyi, Jozef Zivcak, Radovan Hudak, Thorsten Laube, Matthias Schnabelrauch, Juergen Weisser, Ute Schaefer, Thomas Pinzer, Gabriele Schackert, Xifeng Zhang, Mario Waehler, Uta Brautferger, Bernhard Rieger
WORLD NEUROSURGERY
(2018)
Article
Materials Science, Multidisciplinary
Alina Lyuleeva, Philipp Holzmueller, Tobias Helbich, Martin Stutzmann, Martin S. Brandt, Markus Becherer, Paolo Lugli, Bernhard Rieger
JOURNAL OF MATERIALS CHEMISTRY C
(2018)
Article
Chemistry, Multidisciplinary
Michael Weger, Marco M. Giuman, Maximilian G. Knaus, Maximilian Ackermann, Markus Drees, Julius Hornung, Philipp J. Altmann, Roland A. Fischer, Bernhard Rieger
CHEMISTRY-A EUROPEAN JOURNAL
(2018)
Article
Chemistry, Inorganic & Nuclear
Sebastian Kernbichl, Marina Reiter, Daniel H. Bucalon, Philipp J. Altmann, Alexander Kronast, Bernhard Rieger
INORGANIC CHEMISTRY
(2018)
Article
Chemistry, Physical
Thomas M. Pehl, Moritz Kraenzlein, Friederike Adams, Andreas Schaffer, Bernhard Rieger
Article
Chemistry, Inorganic & Nuclear
Yanyan Zhi, Ziwei Feng, Tanisha Mehreen, Xiaoyuan Liu, Kirsty Gardner, Xiangping Li, Bai-Ou Guan, Lijuan Zhang, Sergey Vagin, Bernhard Rieger, Alkiviathes Meldrum
Summary: In this study, the two-photon fluorescence (TPF) of conjugated polymer (CP) microspheres with diameters up to tens of micrometers was investigated. Two types of polymers emitting in violet and red were synthesized and characterized. It was found that under femtosecond infrared excitation, both types of microspheres exhibited strong TPF, with the red-fluorescent microspheres showing a much stronger TPF compared to the violet-fluorescent microspheres. The enhanced hyperpolarizability associated with intermolecular interactions in the polymer solid was attributed to the excellent TPF performance of the red-fluorescent microspheres, suggesting a potential route for designing CP microspheres with superior TPF properties for sensing or imaging applications.
Meeting Abstract
Chemistry, Multidisciplinary
Friederike Adams, Bernhard Rieger
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Chemistry, Multidisciplinary
Friederike Adams, Philipp Pahl, Bernhard Rieger
CHEMISTRY-A EUROPEAN JOURNAL
(2018)
