Article
Chemistry, Applied
Corentin Antoine Baratay, Wenhai Li, Mitch Mathiew, Lei Yu, Sara Helen Kyne, Weidong Rao, Philip Wai Hong Chan
Summary: A synthetic method for preparing 11H-benzo[a]fluorenes and 13H-indeno[1,2-l]phenanthrenes using gold(I) and Bronsted acid-mediated reactions without excluding moisture or air is described. The reaction mechanism involves gold(I)-catalysed migration and cyclization, followed by rearrangement and deacyloxylative aromatization assisted by Bronsted acid, resulting in the formation of polyaromatic hydrocarbon (PAH) products.
ADVANCED SYNTHESIS & CATALYSIS
(2022)
Article
Chemistry, Physical
Shugao Zhu, Dan Wang, Shihan Liu, Yufeng Ma, Hong Wang, Yu Lan, Ruopeng Bai, Ruwei Shen
Summary: The Pd-catalyzed reaction of 1-(2-iodophenyl)-3-arylprop-2-yn-1-ones with propargyl sulfonamide produces cyclobuta[b]naphthalen-3(1H)-ones, while the reaction with propargyl ethers affords 11H-benzo[b]fluoren-11-ones as products. Experimental and theoretical studies reveal that the former reaction proceeds through Pd-catalyzed cross-coupling, propargyl-allenyl isomerization, and [2 + 2] cycloaddition, while the latter involves Pd-catalyzed cross-coupling, propargylic Alder-ene-type reaction, and 6 pi-electrocyclization leading to the formation of [4 + 2] cycloadducts. The divergent formation of two types of allenic intermediates depending on propargylic substrates is confirmed and elucidated.
Article
Chemistry, Multidisciplinary
Prakashgouda G. Patil, Raveendra Melavanki, Shivaraj B. Radder, Raviraj Kusanur, Chidanandayya S. Hiremath, Ninganagouda R. Patil, Sudhir M. Hiremath
Summary: The study synthesized and characterized 1-(3-methoxy-phenyl)-3-naphthalen-1-yl-propenone (MPNP) using experimental techniques and computational methods, and conducted analysis on its optimized structure, vibrational properties, and chemical characteristics.
Article
Biochemistry & Molecular Biology
Menna Elgaafary, Julia Lehner, Ahmed M. Fouda, Abdelaaty Hamed, Judith Ulrich, Thomas Simmet, Tatiana Syrovets, Ahmed M. El-Agrody
Summary: A series of aryl-substituted benzochromene derivatives were designed and synthesized, with compound 4j showing the highest broad-spectrum cytotoxicity among the tested cancer cell lines. The 2,4-dichloro substitution pattern enhanced the cytotoxic activity of benzochromene.
BIOORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Shulin Zhao, Fanmiao Meng, Xiaoxiao Li, Jinfeng Zhao, Zhe Tang
Summary: In this work, the novel diphenylamino submitted 2-(2'-hydroxyphenyl) benzothiazole derivative 2-(benzo[d]thiazol-2-yl)-4-(9H-diphenylamino-9-yl)phenol (pPhOH) is explored for its excited state behaviors, which have potential applications as full-color organic emitting materials. The results show that nonpolar aprotic solvents largely enhance hydrogen bonding interactions in the S-1 state of pPhOH, and the excited state intramolecular proton transfer (ESIPT) tendency is revealed due to charge reorganisation and polarity-dependent energy gap. The study also suggests that solvent polarity can harness the excited state behaviors of the pPhOH system.
Article
Materials Science, Multidisciplinary
Yadu Ram Panthi, Jiri Pfleger, Drahomir Vyprachticky, Ambika Pandey, Muhammed Arshad Thottappali, Ivana Sedenkova, Magdalena Konefal, Stephen H. Foulger
Summary: This study presents the synthesis and properties of PCaPMA, a polymer with potential applications in bistable memory devices. PCaPMA exhibits resistive switching behavior and excellent memory persistence under a static voltage. The resistive switching mechanism is attributed to the reorientation of heterocycles induced by electric field, and the memory persistence is enhanced by physical crosslinking.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Guang Yang, Kaifeng Chen, Xiaofeng Jin, Dapeng Yang
Summary: This study focuses on the photo-induced excitation behaviors of a new molecule, showing enhanced double hydrogen bonds upon photoexcitation and proton redistribution within the molecule. The excited state intramolecular single proton-transfer (ESISPT) behavior was verified for IIa, despite possessing two hydrogen bonds, through potential energy surfaces and electronic spectra analysis.
Article
Polymer Science
Chung-Wen Kuo, Jui-Cheng Chang, Li-Ting Lee, Yi-Dong Lin, Pei-Ying Lee, Tzi-Yi Wu
Summary: In this study, four different polymers were synthesized and their spectral and electrochromic switching performances were characterized, demonstrating their promising application prospects.
Article
Chemistry, Medicinal
Xiao-Xuan Su, Yue-Ru Chen, Jia-Qiang Wu, Xiong-Zhi Wu, Kun-Tao Li, Xiao-Na Wang, Jia-Wei Sun, Honggen Wang, Tian-Miao Ou
Summary: Finding novel agents with anti-tumor activities is meaningful for non-small cell lung cancer (NSCLC) patients. Researchers designed and synthesized a series of carbazole derivatives and discovered that compound 5n showed notable activity in disrupting mitochondrial homeostasis and exhibited anti-tumor activity.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Rui P. C. L. Sousa, Joao C. C. Ferreira, Maria Joao Sousa, M. Sameiro T. Goncalves
Summary: Four new benzo[a]phenoxazinium chlorides were synthesized with specific substituents in the polycyclic system, showing high antifungal activity, with one compound being the most active. These compounds also demonstrated cell labelling capacity as fluorescent probes, accumulating preferentially at specific cellular membranes. The photophysical properties of these compounds in aqueous solutions of different pH values were found to be relevant for potential biological applications.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Qingqing Wu, Guiqin Yang, Jingdong Guo, Fushao Li, Mingsen Deng
Summary: Thioxanthone and its derivatives have broad application prospects due to their excellent absorption properties in the near UV range, high hydrogen scavenging capacity, and compatibility with LED light sources. In this study, a LED-sensitive photoinitiator, N-(9-oxo-9H-thioxanthen-2-yl)acrylamide, was designed and synthesized. The results demonstrated its efficacy and potential applications.
Article
Biochemistry & Molecular Biology
Yasemin Unver, Nevin Suleymanoglu, Resat Ustabas, Kadriye Inan Bektas, Ersan Bektas, Halil Ibrahim Guler
Summary: Compound 1, synthesized and characterized, was analyzed using DFT/B3LYP method. It showed higher antimicrobial activity against B. subtilis subsp. Spizizenii with a MIC of 78.12 μg/mL. Molecular docking studies revealed strong bindings of compound 1 to tyrosyl-tRNA synthetase and Beta-Ketoacyl-Acp Synthase III enzymes.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2022)
Article
Materials Science, Multidisciplinary
Haibo Yao, Lequn Yuan, Ling Pei, Yunjun Shen, Yuzhen Zhang, Liang Zhou, Hedong Bian
Summary: This article reports the synthesis and characterization of five platinum complexes, including four mononuclear complexes and one binuclear complex. The phosphorescent properties of these complexes were investigated and applied in organic light-emitting diode (OLED) devices, demonstrating some emission efficiency.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Hao Dong, Wenkun Jiang, Gang Lv, Yinghui Han
Summary: The photo-induced hydrogen bonding effects and ESIPT mechanism of mCzOH dye were studied in this work. The increased solvent polarity enhanced the hydrogen bonding strength and facilitated the ESIPT reaction. Construction of potential energy curves in different solvents clarified the ESIPT behavior, with polar solvents playing a critical role in lowering the potential barrier and facilitating the ESIPT process.
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2023)
Article
Crystallography
Qian Wang, Yong-Lang Liu, Jiang-Hai Ye, Juan Zou, Chong Wu, Wu-De Yang
Summary: The substance C24H15NO2S2 belongs to the monoclinic crystal system with space group P-21/c (no. 14). The lattice parameters are a = 20.8250(11) angstrom, b = 5.3649(3) angstrom, c = 18.8787(11) angstrom, and β = 106.278(2) degrees. The unit cell volume is 2024.7(2) angstrom^3 with 4 molecules per unit cell. The R-gt(F) value is 0.0439, wR(ref)(F2) value is 0.1015, and the experiment was conducted at 273 K.
ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES
(2023)
Article
Chemistry, Multidisciplinary
Kai Diao, Daniel J. Whitaker, Zehuan Huang, Hongwei Qian, Dongxing Ren, Liangliang Zhang, Zheng-Yi Li, Xiao-Qiang Sun, Tangxin Xiao, Leyong Wang
Summary: Researchers have successfully developed a novel material that can self-assemble into dispersed nanoparticles in water and achieve efficient white-light emission through a light-harvesting strategy. By co-assembling with cyanostilbene, the material shows potential for application in white-light encryption materials.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Haohui Feng, Yuan Chen, Ranran Wang, Pengbo Niu, Conghao Shi, Zhen Yang, Ming Cheng, Juli Jiang, Leyong Wang
Summary: In this study, two TBBMs (T1, n = 1; T3, n = 3) with different ethylene glycol chains were successfully synthesized and analyzed through crystal analysis. These TBBMs possess rare rectangular-like cavities and exhibit chiral selection during crystallization. T1 with a short glycol chain crystallized as racemates, while T3 with a long glycol chain was found to be a meso isomer. The synthesis of TBBMs T1 and T3 with different bridging ethylene glycol chains contributes to a more systematic understanding of TBBMs and the relationship between the size of the rectangular cavity and chiral selection during crystallization.
CHINESE CHEMICAL LETTERS
(2023)
Editorial Material
Chemistry, Multidisciplinary
Fang-Fang Shen, Yuguo Wang, Leyong Wang
CHINESE CHEMICAL LETTERS
(2023)
Editorial Material
Chemistry, Multidisciplinary
Feishi Shan, Jing Zhang, Chengshuang Liao, Zhouyu Wang, Leyong Wang
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Organic
Ming Cheng, Dengli Chen, Liangliang Zhang, Tangxin Xiao, Juli Jiang, Leyong Wang
Summary: We designed and constructed a dissipative self-assembly system based on hydrophilic multiple-carboxylate-anion molecules G1 and G2, using dimethyl sulfate (DMS) as the chemical fuel. The mixed aqueous solution of G1 and G2 rapidly transformed into a hybrid hydrogel upon the addition of DMS, which then slowly changed back into a sol solution. Interestingly, the dissipative self-assembly process also induced a strong fluorescence emission enhancement due to the rigidification of the matrix.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Editorial Material
Chemistry, Multidisciplinary
Qiaona Zhang, Hongwei Qian, Tangxin Xiao, Robert B. P. Elmes, Leyong Wang
CHINESE CHEMICAL LETTERS
(2023)
Biographical-Item
Chemistry, Multidisciplinary
Qiang Shi, Liping Cao, Yong Chen, Huanfang Guo, Yu Liu, Tao Tu, Feng Wang, Junli Wang, Leyong Wang, Yongshu Xie, Cheng Yang, Xin Zhao
CHINESE CHEMICAL LETTERS
(2023)
Editorial Material
Chemistry, Multidisciplinary
Ming Cheng, Juli Jiang, Jean-Claude Chambron, Leyong Wang
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Fei Zeng, Lin-Li Tang, Hui Yu, Leyong Wang, Leyong Wang
Summary: This study reports the efficient and selective separation of benzene from BTX and cyclohexane using a nonporous adaptive crystal AdaOH for the first time. The results suggest that this material has the advantages of high efficiency and selectivity for benzene separation, and can solve the challenges in separating benzene from other chemicals in the chemical industry.
CHINESE CHEMICAL LETTERS
(2023)
Article
Engineering, Chemical
Shao-Lu Li, Yaxu Guan, Yiwen Qin, Youcai Chen, Dandan Cheng, Genghao Gong, Yunxia Hu
Summary: In this study, a novel antifouling loose nanofiltration (LNF) membrane was prepared by cross-linking and grafting, resulting in a membrane with high water permeance and excellent rejection of certain dyes. The membrane also showed low rejection of inorganic salts and good antifouling performance. Overall, the tailored LNF membrane has great potential for application in textile effluent treatment.
Article
Engineering, Chemical
Qianqian Zhao, Shiyu Yu, Yan Zhang, Shaolu Li, Genghao Gong, Yunxia Hu
Summary: Surface modification using organoalkoxysilane grafting on polyamide reverse osmosis membrane improves permeability and antifouling performance. The use of gamma-Aminopropyl triethoxysilane (APTES) and n-decane solvent activation enhances microporosity and maximizes grafting efficiency. The resulting APTES-PA membranes show high water permeability, excellent stability, and improved antifouling properties against both negatively and positively charged foulants.
Article
Materials Science, Multidisciplinary
Heng Li, Jianmin Jiao, Wang Xie, Yue Zhao, Chen Lin, Juli Jiang, Leyong Wang
Summary: Single crystal X-ray diffraction is a reliable method for determining molecular structures, but it has limitations with oily organic molecules. A new crystallization chaperone called TMAPA was developed to overcome this limitation and successfully determined the structures of 51 organic guest molecules. The introduction of anthracene moieties in TMAPA allowed for efficient capture of guest molecules. This work opens up new possibilities for identifying and determining the conformation of unknown oily organic molecules.
ACS MATERIALS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Pengbo Niu, Conghao Shi, Jianmin Jiao, Wang Xie, Heng Qiu, Zhen Yang, Juli Jiang, Leyong Wang
Summary: Two optically pure Troger's base-based macrocycles, R-6N-E[3] and S-6N-E[3], were successfully synthesized, incorporating three Troger's base subunits. Among these Troger's base-based [3]arenes, M[3] exhibited high iodine absorption capacity up to 4.02 g g(-1) in vapor.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Jianmin Jiao, Heng Li, Wang Xie, Yue Zhao, Chen Lin, Juli Jiang, Leyong Wang
Summary: X-ray crystallography is a reliable method for determining the structure and absolute configuration of organic molecules based on their single-crystal forms. However, many analytes are difficult to crystallize due to low melting points or conformational flexibility. This study presents a method for crystallizing oily organic molecules using a macrocycle as a host, allowing for successful determination of the guest structures and absolute configurations.
Article
Chemistry, Multidisciplinary
Jianmin Jiao, Heng Li, Wang Xie, Yue Zhao, Chen Lin, Juli Jiang, Leyong Wang
Summary: In this study, a host-guest crystallization method using a macrocycle was developed to determine the structure and absolute configuration of organic molecules with X-ray crystallography. The method successfully overcame the challenges of crystallizing difficult analytes and has significant applications.