Article
Chemistry, Applied
Bita Manavi, Hossein Zahedian Tejeneki, Frank Rominger, Mahsa Armaghan, Walter Frank, Hamid Reza Bijanzadeh, Saeed Balalaie
Summary: This report discusses two distinctive intramolecular cyclizations of o-propargyloxy diketopiperazines achieved via a copper(I)-catalyzed reaction, offering an opportunity for the synthesis of challenging Diazabicyclics and Spiro-Diketopiperazinochromanes with high yields and exclusive diastereoselectivity.
ADVANCED SYNTHESIS & CATALYSIS
(2021)
Article
Chemistry, Physical
Cheng-bin Fu, Jing-jie Qu, Xue-fang Yu, Jian-bo Cheng, Qingzhong Li
Summary: In this study, the electronic equilibrium structures and tautomerization process in (2,6-aza)Ind center dot(H2O)(2-3) cluster were investigated using DFT and TDDFT methods. Three novel stable clusters were identified with unique water arrangements, and the interaction strength and type were analyzed. The findings suggest that quadruple proton transfer is more preferred than triple proton transfer.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Zhenfu Zhu, Xiaoyuan Liang, Haoyu Luo, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: A flexible self-charging energy system has been developed, which can be worn on the body to continuously collect and store environmental energy, and provide stable electricity for electronic devices.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
S. V. Prabhakar Vattikuti, Jie Zeng, Jaesool Shim, Dae Sung Lee, Kamakshaiah Charyulu Devarayapalli
Summary: This study proposes the phase engineering of Bi(OH)SO4 center dot H2O nanosheets as a solution for the combustion of Bi2O3 using H2SO4. The synthesized nanosheets exhibit a nanosheet-like morphology and show promising performance as electrode materials for electrochemical storage devices. Solid-state coin-cell-type symmetric supercapacitor devices (CSSDs) fabricated using the nanosheets demonstrate high specific capacity, energy density, power density, and cycling stability, making them suitable for energy storage applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Jianlong Huang, Fengjiao Guo, Zhiyong Guo, Jianbang Chen, Bin Dai, Feng Yu
Summary: A series of ammonium-containing fluoroiodates were synthesized using a fluorine-oxygen substitution strategy, and their crystal structures and properties were investigated. The compounds exhibited wide band gaps and a good second harmonic generation response, contributing to the structural diversity of iodates and the design of new functional materials.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Jianlong Huang, Fengjiao Guo, Zhiyong Guo, Jianbang Chen, Bin Dai, Feng Yu
Summary: A series of ammonium-containing fluoroiodates with isolated [IO2F2] units were successfully synthesized, showing their crystal structures and optical properties, which provide important references for the design of new functional materials.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Thammanoon Thaweechai, Weekit Sirisaksoontorn, Yingyot Poo-Arporn, Narong Chanlek, Supapan Seraphin, Surachai Thachepan, Rungtiva P. Poo-Arporn, Songwut Suramitr
Summary: The transparent nanocomposite sol of graphene quantum dot and amorphous TiO2 (GQD/a-TiO2) showed enhanced photocatalytic activity in degradation of RhB due to the interactions between surface functional groups on GQD sheets and a-TiO2, leading to band gap narrowing and synergistic effects. The smaller size of GQD facilitated greater extent of interactions at nanoscopic level, resulting in improved photocatalytic performance.
JOURNAL OF NANOPARTICLE RESEARCH
(2021)
Article
Crystallography
Zhiwei Liu, Guanlong Li, Yan Zhao, Xiangbao Chen
Summary: The rapid development of electronic technology has created a demand for novel materials with designability and excellent dielectric properties. In this study, Ti3C2Tx MXene nanosheets were subjected to NH3·H2O solvothermal treatment at various temperatures. The treatment increased the proportion of surface -OH groups, improving the permittivity of the nanosheets. However, as the treating temperature increased, the amount of -OH on the surface showed a reducing trend, leading to a decrease in the real part of the permittivity.
Article
Chemistry, Organic
Peng Liu, Nguyen Thanh Tung, Xiangchao Xu, Jiazhi Yang, Feng Li
Summary: A ruthenium complex was discovered to be a general and efficient catalyst for the N-methylation of amines with methanol in the presence of carbonate salt. Various sensitive substituents were tolerated under these conditions, highlighting the importance of the OH units in the ligand for catalytic activity. This research demonstrated the potential of metal-ligand bifunctional ruthenium catalysts for the hydrogen autotransfer process.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Biophysics
Zilian Zhang, Ding Jiang, Qingyuan Song, Hanling Ding, Jinghan Jiang, Xueling Shan, Wenchang Wang, Hiroshi Shiigi, Zhidong Chen
Summary: The development of innovative and efficient strategies is crucial for the advancement of near-infrared (NIR) electrochemiluminescence (ECL) sensing. A new ultrasensitive NIR ECL biosensor was constructed using the inner filter effect (IFE) strategy, AgBr nanocrystals (NCs) decorated nitrogen-doped Ti3C2 MXene nanocomposites (AgBr-N-Ti3C2), and hydrated defective tungsten oxide nanosheets (dWO(3)center dot H2O). This biosensor exhibited excellent stability, sensitivity, and reproducibility, with a wide linear range and low detection limit. This strategy opens up a new avenue for efficient NIR ECL sensing and shows great potential in real sample analysis.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Haiqiu Jiang, Lingling Wang, Qian Liu, Quanxiong Lu, Ruifeng Cheng, Ke Zhan, Hui Wan, Long Yang, Guanben Du, Wei Gao
Summary: Sustainable wood-based materials with versatile functions, such as superhydrophobicity and antifouling capability, have great potential in the building industry. In this study, nanoparticles were synthesized on a poplar scrimber surface, endowing it with superhydrophobic function and excellent mechanical and chemical properties. A model of crystalline cellulose before and after compression was proposed to explain the improvement in physical and mechanical properties of the poplar scrimber.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Geochemistry & Geophysics
Carin Sjostedt, Asa Kristofferson, Jon Petter Gustafsson, Ann-Sophie Heldele, Vadim Kessler, Dan B. Kleja
Summary: Assessing speciation and solubility control mechanisms in multi-contaminated soils, this study focused on the historical contamination of As, Cu, Cr, and Zn salts in soil and found a koritnigite phase controlling the dissolved fraction of As(V) and Zn, significantly lowering As solubility at higher pH levels.
APPLIED GEOCHEMISTRY
(2022)
Article
Environmental Sciences
Xuekai Zhang, Kanggen Zhou, Dewen Zeng, Jia Li, Yehuizi Wu, Wei Chen, Changhong Peng
Summary: A novel process for the high-value-use of iron from bauxite residue was proposed in this study, aiming to produce battery-grade FePO4·2H2O using the iron-containing stripping solution. The optimal conditions for synthesis were determined as reaction pH of 0.8, reaction temperature of 90 degrees C, Fe/P ratio of 1, and reaction time of 24 hours, meeting the quality requirements for battery precursor.
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2022)
Article
Engineering, Environmental
Xiaohui Yu, Lingyun Dai, Yue Peng, Jiguang Deng, Yuxi Liu, Lin Jing, Xing Zhang, Zhiquan Hou, Jia Wang, Hongxing Dai
Summary: The study indicates that P-doping and H2O introduction can enhance the selectivity of HCl in the oxidation reaction of 1,2-dichloroethane, reducing the generation of chlorine-containing byproducts.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Yan She, Yanhong Wang, Shuang Li, Tao Wang, Hongcheng Lu
Summary: A new one-dimensional chain antiferromagnet Co(ox)(bib)·H2O 1 has been successfully synthesized and characterized. The compound exhibits a good 1D magnetism with strong antiferromagnetic interactions along the spin chains. However, no long-range order is observed due to weak interchain interactions.
Article
Chemistry, Organic
Maryam Shokoohian, Nourallah Hazeri, Malek Taher Maghsoodlou, Mojtaba Lashkari
Summary: New 1,2,4-triazine derivatives, as biologically active heterocyclics, were synthesized in the presence of acetic acid as a result of the reaction of pyridine-2-(1H)-one derivatives with 1,2-dicarbonyl compounds at 50 degrees C, and their biological properties were also investigated.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Chemistry, Organic
Sadegh Talaiefar, Sayyed Mostafa Habibi-Khorassani, Mehdi Shaharaki
Summary: The full chemical kinetics of a four-component condensation reaction for the synthesis of pyranopyrazoles has been investigated spectrally. The reactions involving ethyl acetoacetate, hydrazine hydrate, malononitrile, and various substituents of benzaldehyde were studied. The reaction with para electron-withdrawing substituted benzaldehyde showed the largest negative Delta S-double dagger value. The unfavorable Delta S-double dagger value was compensated by a favorable Delta H-double dagger value. This correlated with a faster reaction rate and a lower Delta G-double dagger value. The study also revealed the importance of resonance and inductive effects in stabilizing the reaction center with a strong electron-withdrawing group.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Chemistry, Organic
Zahra Aelami, Malek Taher Maghsoodlou, Reza Heydari, Afshin Yazdani-Elah-Abadi
Summary: An efficient and novel synthetic protocol for constructing aminomethylene cycloalkane-1,3-diones based on anthraquinone scaffold has been developed. The green synthetic procedure involves amino-methylene bond formation and has been successful in a one-pot reaction at room temperature, yielding the desired products in good yields. The chemical structures of these compounds were identified using various analytical techniques, and their DNA binding activities were investigated using electronic absorption spectra UV-vis.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Chemistry, Organic
Sara Zhaleh, Nourallah Hazeri, Mohammad Reza Faghihi, Malek Taher Maghsoodlou
Summary: In this study, medicinally important amidoalkyl naphthoquinones were synthesized via an eco-friendly and straightforward method. The one-pot multicomponent reaction successfully prepared the precursors of these natural compounds, which are of great significance in medicinal research. The synthesized compounds were characterized using various techniques.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Chemistry, Organic
Mojtaba Lashkari, Farzaneh Mohamadpour, Malek Taher Maghsoodlou, Reza Heydari, Nourallah Hazeri
Summary: A naturally biodegradable, reusable, and eco-safe catalyst called uric acid has been developed for the green, facile and economical one-pot synthesis of pyran annulated heterocyclic systems. This study provides insight into the reliability of the catalyst in aiding the formation of heterocyclic compounds. The method offers high atom economy, cleaner reaction profile, simple column-free work up condition, shorter reaction times, high to excellent yields, eco-safety, and high catalytic activity, making it an interesting alternative to multistep approaches.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Energy & Fuels
Marzieh Cheraghipoor, Davod Mohebbi-Kalhori, Meissam Noroozifar, Malek Taher Maghsoodlou
Summary: In this study, ceramic membranes with different compositions were fabricated and used as separators in microbial fuel cells (MFCs). The addition of SiO2 to the membrane had varying effects on MFCs performance, with significant improvements observed when 30% SiO2 was added to non-leached soil.
Article
Chemistry, Organic
Samanehsadat Sharifi, Malek Taher Maghsoudlou, Nourallah Hazeri
Summary: This research utilized a green process to synthesize chromen derivatives using a one-pot reaction in water at a low temperature with the catalytic effect of KF/Clinoptilolite nanoparticles. The procedure has advantages such as short reaction time, excellent yield, and the ability to use various substrates.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Chemistry, Organic
Majid Roozifar, Nourallah Hazeri, Homayoun Faroughi Niya
Summary: This study presents three eco-friendly, efficient, and convenient protocols for the one-pot synthesis of 2,4,6-triaryl pyridine, 2-amino-3-cyanopyridine, and polyhydroquinoline derivatives using salicylic acid as a catalyst under solvent-free conditions. The reported protocols offer advantages such as a nontoxic, neutral, and cheap catalyst, environmentally friendly conditions, easily isolatable products, short reaction times, simple methodology, and good yields.
JOURNAL OF HETEROCYCLIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Homayoun Faroughi Niya, Nourallah Hazeri, Malek Taher Maghsoodlou, Maryam Fatahpour
Summary: This research successfully synthesized a novel acidic nanocatalyst for the efficient synthesis of 2-amino-3-cyanopyridine derivatives. The nanocatalyst offers advantages such as simplicity of work-up, high stability, and environmental friendliness.
RESEARCH ON CHEMICAL INTERMEDIATES
(2021)
Article
Chemistry, Multidisciplinary
Sarnanehsadat Sharifi, Malek Taher Maghsoudlou, Nourallah Hazeri
Summary: Fe3O4-MCM-41-SO3H was synthesized as a magnetically reusable Lewis acid catalyst for the cyclization reaction of 3-acylcoumarins or 3-chromonecarboxylic acid with arylhydrazine derivatives to synthesize pyrazoles in high yields under solvent-free conditions. It was characterized by FTIR, SEM, and XRD analyses.
CANADIAN JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Ghasem Marandi, Reyhaneh Nadernia, Nourallah Hazeri, Malek Taher Maghsoodlou
Summary: The synthesis of 3,4-dihydropyrano[2,3-c]chromene and pyrano[2,3-d]pyrimidine derivatives using vitamin B-12 as a catalyst in a one-pot reaction of malononitrile, benzaldehydes, and 4-hydroxycumarine or 1,3-dimethylbarbituric acid is reported and has gained attention in recent years.
IRANIAN JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Organic
Mohyeddin Safarzaei, Ebrahim Mollashahi, Mojtaba Lashkari, Malek Taher Maghsoodlou, Nourallah Hazeri
Summary: The synthesis of pyrido[2,3-d]pyrimidine derivatives using lactic acid as a catalyst at 90 degrees C in a solvent-free and one-pot procedure is described. The benefits include green and environmentally friendly reaction conditions, high yields, short reaction time, simple methodology, and easy workup.
INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY
(2021)
