Review
Chemistry, Multidisciplinary
Alberto Lopez-Magano, Saba Daliran, Ali Reza Oveisi, Ruben Mas-Balleste, Amarajothi Dhakshinamoorthy, Jose Aleman, Hermenegildo Garcia, Rafael Luque
Summary: Organic photochemistry developed significantly in the 1980s, providing insights into the excited electronic states and transfer processes. This knowledge has been applied to the design of COFs as visible-light photocatalysts. COFs are crystalline porous materials with excellent tunability, porosity, stability, and photoelectronic properties, making them potential candidates in various research areas.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lvting Wang, Lili Zhang, Bizhou Lin, Yanzhen Zheng, Jingling Chen, Yun Zheng, Bifen Gao, Jinlin Long, Yilin Chen
Summary: Adding cyano conjugation to a typical COF improves its stable photocatalytic rate and optimizes active centers for solar energy conversion.
Article
Chemistry, Organic
Jingwen Su, Jinming Xu, Zhenyu Gu, Yulu Zhou, Hanliang Zheng, Gangguo Zhu
Summary: In this article, a visible-light-induced cascade difluoroalkylative 5-endo cyclization of ynones with difluoroalkyl bromides is reported, leading to the formation of difluoroalkylated cyclopentenones. This method offers a concise synthesis of fluorinated cyclic molecules and shows potential for wide applications.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Organic
Sheng-Nan Lin, Yu Chen, Xiao-Dong Luo, Yi Li
Summary: A visible light promoted difluoroalkylated cascade reaction of imidazoles and alkenes was reported, providing highly functionalized polycyclic imidazoles. The method allows for a direct radical cyclization of imidazoles with alkenes using BrCF2R as radical sources, with up to 95% isolated yield under mild conditions. Radical-trapping and light-on/off experiments suggested a photocatalytic radical mechanism.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Review
Biochemistry & Molecular Biology
Dao-Qing Dong, Shao-Hui Yang, Pei Wu, Jin-Zhi Wang, Ling-Hao Min, Hao Yang, Meng-Yu Zhou, Ze-Hui Wei, Cai-Zhen Ding, Yan-Li Wang, Jia-Hui Gao, Shu-Jie Wang, Zu-Li Wang
Summary: This review summarizes recent advances in copper-catalyzed difluoroalkylation reactions and classifies them into three types based on their characteristics.
Article
Chemistry, Physical
Qiaobo Liao, Dongni Wang, Can Ke, Yiying Zhang, Qinwen Han, Yifan Zhang, Kai Xi
Summary: This study presents a metal-free covalent organic framework (COF)-based standalone photocatalyst with superior reactivity for Fenton-like reactions, surpassing other well-known metal-free photocatalysts and comparable to metal-containing catalysts in terms of performance and generality. Large porosity, high density of photoactive triazine moiety, suitable bandgap, efficient charge separation and transfer, as well as abundant H2O2 binding sites and reaction centers contribute to its outstanding performance for water pollution remediation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Nanoscience & Nanotechnology
Maarten Debruyne, Sander Borgmans, Sambhu Radhakrishnan, Eric Breynaert, Henk Vrielinck, Karen Leus, Andreas Laemont, Juul De Vos, Kuber Singh Rawat, Siebe Vanlommel, Hannes Rijckaert, Hadi Salemi, Jonas Everaert, Flore Vanden Bussche, Dirk Poelman, Rino Morent, Nathalie De Geyter, Pascal Van Der Voort, Veronique Van Speybroeck, Christian V. Stevens
Summary: Covalent organic frameworks (COFs) are a new type of photoactive organic semiconductors with ordered structures and high surface areas. The band gaps of COFs can be tuned by the choice of building blocks and linkages, making them tailor-made for specific (photocatalytic) applications. However, there are still many unexplored building blocks for COFs as photocatalytic moieties, and the scope of photocatalyzed reactions by COFs is limited.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Qihong Yue, Guoqing Li, Ping Fu, Biao Meng, Fangpei Ma, Yu Zhou, Jun Wang
Summary: Photocatalytic hydrogen production from seawater is enhanced by using beta-ketoenamine-linked covalent organic frameworks (COFs) as catalysts under visible-light irradiation. Among the constructed COFs, the one with a high density of beta-ketoenamine units exhibits the highest photocatalytic H2 evolution rate in seawater, about 1.66 times higher than in pure water. The beta-ketoenamine units allow in-situ polarization of the COF framework, resulting in increased dielectric constant and enhanced charge separation and transfer for promoting H2 photoproduction in seawater.
Article
Chemistry, Multidisciplinary
Jia-Nan Chang, Qi Li, Jing-Wen Shi, Mi Zhang, Lei Zhang, Shan Li, Yifa Chen, Shun-Li Li, Ya-Qian Lan
Summary: A covalent organic framework (TTF-BT-COF) with oxidation-reduction molecular junction has been synthesized through the covalent-coupling of tetrathiafulvalene and benzothiazole. This framework has visible-light absorption region, effective electron-hole separation efficiency, and photo-redox sites, enabling full reaction generation of H2O2.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Hanchao Cheng, Tsz-Lung Lam, Yungen Liu, Zhou Tang, Chi-Ming Che
Summary: The study demonstrated a synthetic strategy for alkene functionalization using photoinduced hydroarylation and developed a novel method for the synthesis of structurally diverse 3,4-dihydroquinolinones.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Nanoscience & Nanotechnology
Yongliang Yang, Weijia Zhao, Hongyun Niu, Yaqi Cai
Summary: This research utilized the remaining aldehyde groups in a substoichiometric covalent organic framework to achieve precise construction of 2D/2D covalent organic nanosheets heterojunctions through mechanochemical methods, resulting in superior photoinduced charge generation and separation, and a significant enhancement in photocatalytic degradation efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Polymer Science
Yuancheng Wang, Yingjie Zhao, Zhibo Li
Summary: In the context of the energy crisis and global warming, developing clean and sustainable energy through photocatalytic processes is gaining attention. Organic porous polymers, particularly covalent organic frameworks (COFs), have emerged as promising photocatalysts due to their high crystallinity, porosity, and structural designability.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Review
Chemistry, Inorganic & Nuclear
Haohua Chen, Yuanyuan Li, Song Liu, Qin Xiong, Ruopeng Bai, Donghui Wei, Yu Lan
Summary: Platinum has attracted significant attention in organometallic chemistry and plays a crucial role in various organic molecular activations, such as C-H activation and alkene activation, contributing to the understanding of general principles of platinum chemistry.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Xiaolin Liu, Xiya Yang, Xu Ding, Hailong Wang, Wei Cao, Yucheng Jin, Baoqiu Yu, Jianzhuang Jiang
Summary: Covalent organic frameworks (COFs) are promising materials for photocatalytic hydrogen evolution reaction (HER) due to their tunable chemical structures. In this study, three COFs catalysts were investigated and the introduction of ascorbic acid was found to greatly improve their photocatalytic performance for HER.
CHINESE CHEMICAL LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Jose Aleman, Ruben Mas-Balleste
Summary: Covalent Organic Frameworks (COFs) and related extended organic materials have been widely utilized as photocatalysts, with the design process being influenced by factors like crystallinity and porosity. However, catalytic activity does not solely depend on these characteristics, as shown in a compilation of literature on the use of COFs and Covalent Triazine Frameworks (CTFs) in photocatalytic oxidation processes.
FRONTIERS IN CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Hiroki Miura, Volodymyr Bon, Irena Senkovska, Sebastian Ehrling, Nadine Boenisch, Gerrit Maeder, Stefan Gruenzner, Azat Khadiev, Dmitri Novikov, Kartik Maity, Andreas Richter, Stefan Kaskel
Summary: Switchable metal-organic frameworks (MOFs) have applications in selective separation, pressure amplification, sensing, and actuation. This study demonstrates the temporal engineering of a switchable MOF (DUT-8) by deliberately tuning its temporal response through variations in cobalt content. Advanced analytical methods, including in situ time-resolved techniques, were used to analyze the switching kinetics stimulated by vapor adsorption. The spatiotemporal response of crystal ensembles showed differences due to variations in induction time and cobalt content, reflecting changes in activation barriers.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hamid R. Shahsavari, Samira Chamyani, Reza Babadi Aghakhanpour, Vahideh Dolatyari, Sareh Paziresh
Summary: Two categories of cycloplatinated(ii) complexes were synthesized and their photophysical properties were investigated. The absorption and emission spectra of these complexes showed distinct differences under different conditions.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Sareh Paziresh, Reza Babadi Aghakhanpour, Hamid R. Shahsavari, Vahideh Dolatyari, Irene Ara, S. Masoud Nabavizadeh
Summary: In this study, a series of cyclometalated Ir(iii) complexes were synthesized and characterized. The complexes showed strong red emissions with different quantum efficiencies. The emissions mainly originated from (MLCT)-M-3 character, and the esteric functional group on the ligand could be easily converted to increase water solubility. The emission properties of the complexes were sensitive to pH, and the emission intensity and lifetime values changed with varying pH values.
NEW JOURNAL OF CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Jiyun Hu, Zhiyuan Huang, Yi Liu
Summary: Covalent organic frameworks (COFs) are crystalline porous organic materials with potential applications in various fields. However, the development of COFs is hindered by the lack of efficient synthetic methods. The traditional solvothermal approach faces challenges such as complicated processes, excessive energy consumption, long reaction times, and limited scalability, making it unsuitable for practical applications. This Review provides an overview of recent advances in alternative COF synthetic methods, focusing on energy input. Examples of COF synthesis using microwave, ultrasound, mechanic force, light, plasma, electric field, and electron beam are discussed, highlighting the advantages and limitations of these methods compared to the traditional solvothermal approach.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Lawson T. Glasby, Kristian Gubsch, Rosalee Bence, Rama Oktavian, Kesler Isoko, Seyed Mohamad Moosavi, Joan L. Cordiner, Jason C. Cole, Peyman Z. Moghadam
Summary: To efficiently identify promising MOFs for specific applications, a open-source database called DigiMOF was generated by data-mining published MOF papers. This database contains information about the synthesis methods, solvents, linkers, metal precursors, and other properties of MOFs.
CHEMISTRY OF MATERIALS
(2023)
Article
Food Science & Technology
Maria Tufariello, Lorenzo Palombi, Antonino Rizzuti, Biagia Musio, Vittorio Capozzi, Vito Gallo, Piero Mastrorilli, Francesco Grieco
Summary: This study investigated the effects of different yeast strains on the chemical and volatile profiles of rose wine and sparkling wine. The results showed that using autochthonous yeast strains significantly influenced the composition of sparkling wine, leading to distinct aroma and metabolome compared to commercial yeast strains.
Article
Chemistry, Physical
Valentina Petrelli, Giuseppe Romanazzi, Cecilia Mortalo, Cristina Leonelli, Mauro Zapparoli, Elvira De Giglio, Cosima Damiana Calvano, Maria Michela Dell'Anna, Piero Mastrorilli
Summary: A nitrogen-doped polymer supported cobalt catalyst (Co-pol) was synthesized and used as an active and recyclable catalyst for nitroarene reduction. The catalysis was truly heterogeneous and prevented hydrodehalogenation. STEM and EDS analyses confirmed the presence of cobalt(0) nanoparticles as the active species. Nitrogen atoms in the catalytic support played a beneficial role in the catalytic activity.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Inorganic & Nuclear
Vahideh Dolatyari, Hamid R. R. Shahsavari, Masood Fereidoonnezhad, Fahimeh Farhadi, Shiva Akhlaghi, Camille Latouche, Yoshie Sakamaki, Hudson Beyzavi
Summary: This study investigates a new series of heterobimetallic Pt(II)-Au(I) complexes and characterizes their photophysical properties. The complexes exhibit luminescent properties in both solid state and solution. The cytotoxic activities of the complexes are compared with starting materials against different human cancer cell lines, and the heterobimetallic Pt-II-Au-I species are found to be highly cytotoxic and capable of inducing apoptosis. The complex 3 is identified as the most cytotoxic compound with the highest selectivity index, and it effectively causes cell death through cytoplasmic staining.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Medicinal
Lawson T. Glasby, Rama Oktavian, Kewei Zhu, Joan L. Cordiner, Jason C. Cole, Peyman Z. Moghadam
Summary: Augmented reality (AR) is an emerging technique that enhances visualization and understanding of complex 3D materials. It has applications in various fields such as chemistry, real estate, physics, and mechanical engineering. In this study, we demonstrate a workflow for an app-free AR technique that enables visualization of metal-organic frameworks (MOFs) and other porous materials to study their crystal structures, topology, and gas adsorption sites. This workflow can be a valuable tool for computational and experimental scientists in their research and educational endeavors.
JOURNAL OF CHEMICAL INFORMATION AND MODELING
(2023)
Article
Chemistry, Multidisciplinary
Valentina Petrelli, Maria Michela Dell'Anna, Piero Mastrorilli, Veronica Viola, Michelina Catauro, Antonio D'Angelo
Summary: Hybrid materials composed of organic and inorganic components at the nanometer or molecular level have been studied for their potential applications in the biological and medical fields. This study focuses on the synthesis and characterization of a sol-gel-derived hybrid material consisting of silica, polyethylene glycol, and the antioxidant flavonoid quercetin. The structural and biological properties of the hybrid systems were investigated by varying the concentrations of quercetin and polyethylene glycol, and results showed a controlled release of quercetin over time, indicating its potential use in drug delivery.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Inorganic & Nuclear
Ambra Maria Fiore, Valentina Petrelli, Christophe Fliedel, Eric Manoury, Piero Mastrorilli, Rinaldo Poli
Summary: The solution behavior of complex [Rh(COD)(& mu;-OAc)](2) in dichloromethane has been investigated in the absence and presence of PPN+OAc- using multinuclear NMR spectroscopy. The addition of PPN+OAc- results in the generation of [Rh(COD)(OAc)(2)](-) through equilibration. Rapid exchange between different Rh complexes and acetate ligands is observed at room temperature, but freezing the exchange at lower temperatures allows for the coalescence of certain NMR resonances.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yuhang Yao, Jiyun Hu, Guiyu Liu, Yin-Shan Meng, Song Gao, Jun-Long Zhang
Summary: In this study, a novel gold(I) bifluoride complex, LAuHF2, supported by a sterically bulky ligand (L, (t)BuXantphos), showed exceptional reactivity towards hydrodefluorination (HDF) and hydrosilylation of CO2 in the presence of hydrosilanes. Compared to the LAuCl counterpart, the LAuHF2 complex exhibited significantly higher turnover frequency in HDF and hydrosilylation of CO2. Further experimental and computational studies revealed the critical role of non-coordinated fluoride in silane activation, leading to the generation of an active gold hydride intermediate for catalytic activities. This work demonstrates the importance of counterion effect in gold catalysis and provides new insights for the design of metal catalysts for small molecule activation.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Biochemistry & Molecular Biology
Elhussein Ahmed, Biagia Musio, Stefano Todisco, Piero Mastrorilli, Vito Gallo, Maria Saponari, Franco Nigro, Stefania Gualano, Franco Santoro
Summary: Olive quick decline syndrome (OQDS) is a disease that has been seriously affecting olive trees in southern Italy since around 2009. This study analyzed early stage infected leaves of olive plants using nuclear magnetic resonance (NMR), hyperspectral reflectance (HSR), and chemometrics, and found that specific hydrosoluble metabolites were indicative of Xf infection. This information is crucial for the development of HSR-based sensors for early detection of Xf infections in olive trees.
Article
Chemistry, Multidisciplinary
Viviana Vergaro, Maria Michela Dell'Anna, Hamid R. Shahsavari, Francesca Baldassarre, Danilo Migoni, Piero Mastrorilli, Francesco Paolo Fanizzi, Giuseppe Ciccarella
Summary: Platinum-based anticancer drugs are widely used in chemotherapy, but their clinical applications and therapeutic efficacy are hindered by problems such as systemic toxicity and acquired resistance. This study combines chemical synthesis and nanotechnology to create a multifunctional platinum drug delivery system that shows good biocompatibility and drug release ability, thereby enhancing the therapeutic action of the drug.
NANOSCALE ADVANCES
(2023)
