Precision Chemistry最新文献_第10页

Global Impact and Balancing Act: Deciphering the Effect of Fluorination on B 1s Binding Energies in Fluorinated h-BN Nanosheets 全球影响与平衡行动：解读氟化对氟化 h-BN 纳米片中 B 1s 结合能的影响

Precision Chemistry Pub Date : 2024-05-07 DOI: 10.1021/prechem.4c00007

Yang Xiao, Jun-Rong Zhang, Sheng-Yu Wang and Weijie Hua*,

{"title":"Global Impact and Balancing Act: Deciphering the Effect of Fluorination on B 1s Binding Energies in Fluorinated h-BN Nanosheets","authors":"Yang Xiao, Jun-Rong Zhang, Sheng-Yu Wang and Weijie Hua*, ","doi":"10.1021/prechem.4c00007","DOIUrl":"https://doi.org/10.1021/prechem.4c00007","url":null,"abstract":"X-ray photoelectron spectroscopy (XPS) is an important characterization tool in the pursuit of controllable fluorination of two-dimensional hexagonal boron nitride (h-BN). However, there is a lack of clear spectral interpretation, and seemingly conflicting measurements exist. To discern the structure–spectroscopy relation, we performed a comprehensive first-principles study on the boron 1s edge XPS of fluorinated h-BN (F-BN) nanosheets. By gradually introducing 1–6 fluorine atoms into different boron or nitrogen sites, we created various F-BN structures with doping ratios ranging from 1 to 6%. Our calculations reveal that fluorines landed at boron or nitrogen sites exert competitive effects on the B 1s binding energies (BEs), leading to red or blue shifts in different measurements. Our calculations affirmed the hypothesis that fluorination affects 1s BEs of all borons in the π-conjugated system, opposing the transferability from h-BN to F-BN. Additionally, we observe that BE generally increases with higher fluorine concentration when both borons and nitrogens are nonexclusively fluorinated. These findings provide critical insights into how fluorination affects boron’s 1s BEs, contributing to a better understanding of fluorination functionalization processes in h-BN and its potential applications in materials science.","PeriodicalId":29793,"journal":{"name":"Precision Chemistry","volume":"2 6","pages":"239–244"},"PeriodicalIF":0.0,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/prechem.4c00007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A General Synthesis Method for Covalent Organic Framework and Inorganic 2D Materials Hybrids 共价有机框架和无机二维材料混合物的通用合成方法

Precision Chemistry Pub Date : 2024-05-02 DOI: 10.1021/prechem.3c00118

Yifan Zhu, Yunrui Yan, Yuren Feng, Yifeng Liu, Chen-Yang Lin, Qing Ai, Tianshu Zhai, Bongki Shin, Rui Xu, Hongchen Shen, Qiyi Fang, Xiang Zhang, D. Bhagwandin, Yimo Han, Hanyu Zhu, N. Glavin, P. Ajayan, Qilin Li, Jun Lou

引用次数: 0

A General Synthesis Method for Covalent Organic Framework and Inorganic 2D Materials Hybrids 共价有机框架和无机二维材料混合物的通用合成方法

Precision Chemistry Pub Date : 2024-05-02 DOI: 10.1021/prechem.3c0011810.1021/prechem.3c00118

Yifan Zhu, Yunrui Yan, Yuren Feng, Yifeng Liu, Chen-Yang Lin, Qing Ai, Tianshu Zhai, Bongki Shin, Rui Xu, Hongchen Shen, Qiyi Fang, Xiang Zhang, Dayanni Bhagwandin, Yimo Han, Hanyu Zhu, Nicholas R. Glavin, Pulickel M Ajayan, Qilin Li and Jun Lou*,

{"title":"A General Synthesis Method for Covalent Organic Framework and Inorganic 2D Materials Hybrids","authors":"Yifan Zhu, Yunrui Yan, Yuren Feng, Yifeng Liu, Chen-Yang Lin, Qing Ai, Tianshu Zhai, Bongki Shin, Rui Xu, Hongchen Shen, Qiyi Fang, Xiang Zhang, Dayanni Bhagwandin, Yimo Han, Hanyu Zhu, Nicholas R. Glavin, Pulickel M Ajayan, Qilin Li and Jun Lou*, ","doi":"10.1021/prechem.3c0011810.1021/prechem.3c00118","DOIUrl":"https://doi.org/10.1021/prechem.3c00118https://doi.org/10.1021/prechem.3c00118","url":null,"abstract":"Two-dimensional (2D) inorganic/organic hybrids provide a versatile platform for diverse applications, including electronic, catalysis, and energy storage devices. The recent surge in 2D covalent organic frameworks (COFs) has introduced an organic counterpart for the development of advanced 2D organic/inorganic hybrids with improved electronic coupling, charge separation, and carrier mobility. However, existing synthesis methods have primarily focused on few-layered film structures, which limits scalability for practical applications. Herein, we present a general synthesis approach for a range of COF/inorganic 2D material hybrids, utilizing 2D inorganic materials as both catalysts and inorganic building blocks. By leveraging the intrinsic Lewis acid sites on the inorganic 2D materials such as hexagonal boron nitride (hBN) and transition metal dichalcogenides, COFs with diverse functional groups and topologies can grow on the surface of inorganic 2D materials. The controlled 2D morphology and excellent solution dispersibility of the resulting hybrids allow for easy processing into films through vacuum filtration. As proof of concept, hBN/COF films were employed as filters for Rhodamine 6G removal under flow-through conditions, achieving a removal rate exceeding 93%. The present work provides a simple and versatile synthesis method for the scalable fabrication of COF/inorganic 2D hybrids, offering exciting opportunities for practical applications such as water treatment and energy storage.","PeriodicalId":29793,"journal":{"name":"Precision Chemistry","volume":"2 8","pages":"398–405 398–405"},"PeriodicalIF":0.0,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/prechem.3c00118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142075706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integration of Green Hydrogen Production and Storage via Electrocatalysis 通过电催化将绿色制氢和储氢融为一体

Precision Chemistry Pub Date : 2024-04-30 DOI: 10.1021/prechem.4c00020

Chao Zhang, Jingxiang Low* and Yujie Xiong*,

{"title":"Integration of Green Hydrogen Production and Storage via Electrocatalysis","authors":"Chao Zhang, Jingxiang Low* and Yujie Xiong*, ","doi":"10.1021/prechem.4c00020","DOIUrl":"https://doi.org/10.1021/prechem.4c00020","url":null,"abstract":"Hydrogen economy, which proposes employing hydrogen to replace or supplement the current fossil-fuel-based energy economy system, is widely accepted as the future energy scheme for the sustainable and green development of human society. While the hydrogen economy has shown tremendous potential, the associated challenges with hydrogen production and storage remain significant barriers to wide applications. In light of this consideration, the integration of green hydrogen production and storage through electrocatalysis for direct production of chemical hydrogen storage media has emerged as a potential solution to these challenges. Specifically, through electrocatalysis, CO2 and H2O can be converted into methanol or formic acid, while N2 or NOx along with H2O can be transformed into ammonia, streamlining the hydrogen economy scheme. In this Perspective, we provide an overview of recent developments in this technology. Additionally, we briefly discuss the general properties and corresponding production strategies via the electrolysis of these chemical hydrogen storage media. Finally, we conclude by offering insights into future perspectives in this field, anticipating that the successful advancement of such technology will propel the development of the hydrogen economy toward practical implementation.","PeriodicalId":29793,"journal":{"name":"Precision Chemistry","volume":"2 6","pages":"229–238"},"PeriodicalIF":0.0,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/prechem.4c00020","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solution-Processed Monolayer Molecular Crystals: From Precise Preparation to Advanced Applications 溶液加工单层分子晶体：从精确制备到先进应用

Precision Chemistry Pub Date : 2024-04-25 DOI: 10.1021/prechem.3c00124

Jing Zhang, Jing Guo, Hantang Zhang, Jie Liu, Sheng-Yong You, Lang Jiang

引用次数: 0

Solution-Processed Monolayer Molecular Crystals: From Precise Preparation to Advanced Applications 溶液加工单层分子晶体：从精确制备到先进应用

Precision Chemistry Pub Date : 2024-04-25 DOI: 10.1021/prechem.3c0012410.1021/prechem.3c00124

Jing Zhang, Jing Guo, Hantang Zhang, Jie Liu*, Sheng-Yong You and Lang Jiang*,

{"title":"Solution-Processed Monolayer Molecular Crystals: From Precise Preparation to Advanced Applications","authors":"Jing Zhang, Jing Guo, Hantang Zhang, Jie Liu*, Sheng-Yong You and Lang Jiang*, ","doi":"10.1021/prechem.3c0012410.1021/prechem.3c00124","DOIUrl":"https://doi.org/10.1021/prechem.3c00124https://doi.org/10.1021/prechem.3c00124","url":null,"abstract":"Emerging monolayer molecular crystals (MMCs) have become prosperous in recent decades due to their numerous advantages. First, downsizing the active layer thickness to monolayer in organic field-effect transistors (OFETs) is beneficial to elucidate the intrinsic charge-transport behavior. Next, the ultrathin conducting channel can reduce bulk injection resistance to extract mobility accurately. Then, direct exposure of the conducting channel can enhance the sensing performance. Finally, MMCs combine the merits of ultrathin thickness and high crystallization, which will improve the optoelectronic performance and realize complex device architectures for future advanced optoelectronic applications. In this Review, recent research progress in precise preparations and advanced applications of solution-processed MMCs are summarized. We present the current challenges related to MMCs with specific structures and desired performances, and an outlook regarding their application in next-generation integrated organic optoelectronics is provided.","PeriodicalId":29793,"journal":{"name":"Precision Chemistry","volume":"2 8","pages":"380–397 380–397"},"PeriodicalIF":0.0,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/prechem.3c00124","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142075355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Catalytic Asymmetric Diastereodivergent Synthesis of 2-Alkenylindoles Bearing both Axial and Central Chirality 具有轴向和中心手性的 2-烯基吲哚的催化不对称非对映发散合成

Precision Chemistry Pub Date : 2024-04-23 DOI: 10.1021/prechem.4c00008

Shuang Yang, Jia-Bo Huang, Da-Hua Wang, Ning-Yi Wang, Yu-Yu Chen, Xin-Yan Ke, Hao Chen, Shao-Fei Ni*, Yu-Chen Zhang* and Feng Shi*,

{"title":"Catalytic Asymmetric Diastereodivergent Synthesis of 2-Alkenylindoles Bearing both Axial and Central Chirality","authors":"Shuang Yang, Jia-Bo Huang, Da-Hua Wang, Ning-Yi Wang, Yu-Yu Chen, Xin-Yan Ke, Hao Chen, Shao-Fei Ni*, Yu-Chen Zhang* and Feng Shi*, ","doi":"10.1021/prechem.4c00008","DOIUrl":"10.1021/prechem.4c00008","url":null,"abstract":"The catalytic asymmetric diastereodivergent synthesis of axially chiral 2-alkenylindoles was established via chiral phosphoric acid-catalyzed addition reactions of C3-unsubstituted 2-alkenylindoles with o-hydroxybenzyl alcohols under different reaction conditions. Using this strategy, two series of 2-alkenylindoles bearing both axial and central chirality were synthesized in a diastereodivergent fashion with moderate to high yields and good stereoselectivities (up to 99% yield, 95:5 er, >95:5 dr). Moreover, theoretical calculations were performed on the key transition states leading to different stereoisomers, which provided an in-depth understanding of the origin of the observed stereoselectivity and diastereodivergence of the products under different reaction conditions. More importantly, these 2-alkenylindoles were utilized in asymmetric catalysis as chiral organocatalysts and in medicinal chemistry for evaluation of their cytotoxicity, which demonstrated their potential applications. This study has not only established the catalytic atroposelective synthesis of axially chiral 2-alkenylindoles, but also provided an efficient strategy for catalytic asymmetric diastereodivergent construction of indole-based scaffolds bearing both axial and central chirality.","PeriodicalId":29793,"journal":{"name":"Precision Chemistry","volume":"2 5","pages":"208–220"},"PeriodicalIF":0.0,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/prechem.4c00008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140669430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Hydrogen-Bonded, Hexagonally Networked, Layered Framework with Large Aperture Designed by Structural Synchronization of a Macrocycle and Supramolecular Synthon 通过大循环和超分子合成物的结构同步设计出具有大孔径的氢键六边形网络化层状框架

Precision Chemistry Pub Date : 2024-04-12 DOI: 10.1021/prechem.4c00019

Hiroki Yoshimura, Ryusei Oketani, Miki Naruoka, Norimitsu Tohnai and Ichiro Hisaki*,

{"title":"A Hydrogen-Bonded, Hexagonally Networked, Layered Framework with Large Aperture Designed by Structural Synchronization of a Macrocycle and Supramolecular Synthon","authors":"Hiroki Yoshimura, Ryusei Oketani, Miki Naruoka, Norimitsu Tohnai and Ichiro Hisaki*, ","doi":"10.1021/prechem.4c00019","DOIUrl":"10.1021/prechem.4c00019","url":null,"abstract":"To develop porous organic frameworks, precise control of the stacking manner of two-dimensional porous motifs and structural characterization of the resultant framework are important. From these points of view, porous molecular crystals formed through reversible intermolecular hydrogen bonds, such as hydrogen-bonded organic frameworks (HOFs), can provide deep insight because of their high crystallinity, affording single-crystalline X-ray diffraction analysis. In this study, we demonstrate that the stacking manner of hydrogen-bonded hexagonal network (HexNet) sheets can be controlled by synchronizing a homological triangular macrocyclic tecton and a hydrogen-bonded cyclic supramolecular synthon called the phenylene triangle. A structure of the resultant HOF was crystallographically characterized and revealed to have a large channel aperture of 2.4 nm. The HOF also shows thermal stability up to 290 °C, which is higher than that of the conventional HexNet frameworks.","PeriodicalId":29793,"journal":{"name":"Precision Chemistry","volume":"2 5","pages":"221–228"},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/prechem.4c00019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140709580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Celebrating One Year of Precision Chemistry 庆祝精密化学诞生一周年

Precision Chemistry Pub Date : 2024-04-10 DOI: 10.1021/prechem.4c00033

Juanjuan Jia*, and , Jinlong Yang*,

引用次数: 0

Controlled Synthesis of Graphdiyne-Based Multiscale Catalysts for Energy Conversion 可控合成基于石墨二炔的多尺度能源转换催化剂

Precision Chemistry Pub Date : 2024-04-09 DOI: 10.1021/prechem.3c00125

Siao Chen, Xuchen Zheng, Yang Gao, Xinyu Ping, Yurui Xue, Yuliang Li

引用次数: 0