CrystEngComm最新文献_第8页

High-quality single-crystalline BiSe topological insulator nanowires and nanobelts grown via chemical vapor deposition† 高品质的单晶BiSe拓扑绝缘体纳米线和纳米带通过化学气相沉积生长

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-03-05 DOI: 10.1039/D5CE00089K

Zhenyang Xuan, Yongzhao Feng, Boqin Song, Tianping Ying, Xiaofang Lai and Jikang Jian

{"title":"High-quality single-crystalline BiSe topological insulator nanowires and nanobelts grown via chemical vapor deposition†","authors":"Zhenyang Xuan, Yongzhao Feng, Boqin Song, Tianping Ying, Xiaofang Lai and Jikang Jian","doi":"10.1039/D5CE00089K","DOIUrl":"https://doi.org/10.1039/D5CE00089K","url":null,"abstract":"BiSe is a layered topological insulator, which has not gained enough attention, while nanoscale topological insulator materials with high surface-to-volume ratio are promising candidates for advanced electronic devices. In this study, we report a facile chemical vapor deposition approach to synthesize high-quality BiSe nanowires and nanobelts, which exhibit the typical electrical transport property of topological insulators. Morphological and microstructural characterizations confirmed that single-crystalline BiSe nanowires and nanobelts with large surface area, near stoichiometric compositions and aspect ratios exceeding 1500 were formed. The growth of the BiSe nanowires and nanobelts was investigated in detail. It was found that appropriate growth temperature enabled optimal morphology, and an Au-catalyst-assisted vapor–liquid–solid mechanism was employed to control the quantity and quality of the products. The linear positive magnetoresistance at 2 K was observed in an individual BiSe nanowire; the results suggested the presence of massless Dirac fermions on the surface and gapless surface states, while a weak antilocalization effect was detected near 0 T magnetic field. This work provides a feasible route to synthesize one-dimensional BiSe nanostructures with well-defined morphology and reveals their intriguing magnetoresistance property.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 15","pages":" 2203-2208"},"PeriodicalIF":2.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thiazolothiazole based functional metal–organic frameworks 基于噻唑噻唑的功能性金属有机框架

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-03-05 DOI: 10.1039/D5CE00169B

Xing-Cai Huang and Jiao-Jiao Kong

{"title":"Thiazolothiazole based functional metal–organic frameworks","authors":"Xing-Cai Huang and Jiao-Jiao Kong","doi":"10.1039/D5CE00169B","DOIUrl":"https://doi.org/10.1039/D5CE00169B","url":null,"abstract":"Thiazolothiazole (TTZ)-based functional metal–organic frameworks (MOFs) represent an emerging class of materials that offer multi-functional properties, making them ideal for advanced applications in environmental monitoring, biomedical diagnostics, and sustainable technologies. Importantly, the distinctive structural features of TTZ ligands, characterized by two rigidly fused thiazole rings containing nitrogen and sulfur heteroatoms, provide exceptional fluorescence properties and multiple coordination sites, enabling diverse functionalities. Consequently, TTZ-based MOFs exhibit remarkable multifunctional characteristics attributed to the unique properties of the TTZ moiety, including fluorescence sensing, catalysis, photon upconversion, photochromism, electrochromism, bioimaging, and other functionalities. This comprehensive review systematically examines ligand design principles, synthetic methodologies, and diverse applications of TTZ-based MOFs. Furthermore, we critically analyze the current challenges and provide perspectives on future research directions in this field. The development of TTZ-based MOFs offers a promising strategy and alternative approach for addressing specific scientific and technological challenges in various research domains.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 17","pages":" 2611-2622"},"PeriodicalIF":2.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Suppressed surface defect via ligand engineering with 2-hexyldecanoic acid for high luminescence and stable CsPb1−xNixBr3 perovskite quantum dots† 利用2-己基癸酸配体工程抑制高发光和稳定的CsPb1−xNixBr3钙钛矿量子点†的表面缺陷

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-03-05 DOI: 10.1039/D5CE00063G

Tae Yong Im, Jin Young Kim, Hyunguk Park, Woongsik Jang and Dong Hwan Wang

{"title":"Suppressed surface defect via ligand engineering with 2-hexyldecanoic acid for high luminescence and stable CsPb1−xNixBr3 perovskite quantum dots†","authors":"Tae Yong Im, Jin Young Kim, Hyunguk Park, Woongsik Jang and Dong Hwan Wang","doi":"10.1039/D5CE00063G","DOIUrl":"https://doi.org/10.1039/D5CE00063G","url":null,"abstract":"Perovskite quantum dots (PQDs) have gained considerable attention as fluorescent materials because of their exceptional optical properties. However, PQDs are vulnerable to environmental conditions because of ionic bonds, necessitating improvements in their stability. Recent research has focused on preventing phase transition through B-site doping of the perovskite structure or ligand modification to suppress surface defects. The carboxyl ligand, which is an X-type ligand, binds to the B-site of the particle. To the best of our knowledge, an interaction between carboxyl ligand modification and B-site ion doping has not been reported. In this study, we present a synthesis strategy for stable PQDs with tunable optical properties. This approach involves the simultaneous doping of the B-site and modification of the X-type ligand, resulting in the formation of stable PQDs with enhanced performances. The results indicate that the luminescence properties of the particles are enhanced, and the phase transition is prevented through the B-site ion doping process. The modification of the carboxyl ligand to 2-hexyldecanoic acid (DA) improves the luminescence characteristics and enhances luminescence stability. Consequently, DA–CsPb1−xNixBr3 PQDs provide a quantum yield (QY) of 84.71% and stability when exposed to conditions such as ambient temperature, heat, and moisture. Therefore, we propose a convenient approach for suppressing the decomposition of PQDs during the manufacturing process.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 15","pages":" 2083-2088"},"PeriodicalIF":2.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ammonium 18-crown-6 complexes with tetrahedral monoanions: X-ray, thermal and comparative analysis of non-covalent interactions† 带四面体单阴离子的18-冠-6铵配合物：非共价相互作用的x射线、热分析和比较分析

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-03-04 DOI: 10.1039/D4CE01254B

D. O. Charkin, V. E. Kireev, N. A. Krupenikov, D. N. Dmitriev, D. A. Dorogov, S. M. Aksenov, K. A. Zagidullin, M. A. Volkov, A. P. Novikov, Iu. M. Nevolin, A. D. Krot, M. S. Grigoriev, E. G. Krivoborodov, A. V. Sitanskaia and I. G. Tananaev

{"title":"Ammonium 18-crown-6 complexes with tetrahedral monoanions: X-ray, thermal and comparative analysis of non-covalent interactions†","authors":"D. O. Charkin, V. E. Kireev, N. A. Krupenikov, D. N. Dmitriev, D. A. Dorogov, S. M. Aksenov, K. A. Zagidullin, M. A. Volkov, A. P. Novikov, Iu. M. Nevolin, A. D. Krot, M. S. Grigoriev, E. G. Krivoborodov, A. V. Sitanskaia and I. G. Tananaev","doi":"10.1039/D4CE01254B","DOIUrl":"https://doi.org/10.1039/D4CE01254B","url":null,"abstract":"We report the preparation, crystal structures, and non-covalent interaction analysis for a series of ammonium–18-crown-6 complex salts with tetrahedral monoanions, [(NH4)(18C6)]+[TX4]−·nH2O, TX4− = BF4− (n = 0), TcO4− (n = 1), ReO4−, OsO3N−, CrO3F−, CrO3Cl−, and CrO3Br−. In accordance with the size of the anion, the structures can be divided into several groups: “pseudo-dimeric anhydrous” {[NH4(18C6)]2(TX4)}+[TX4]− for the tetrafluoroborate, monofluorochromate, and the previously reported perchlorate; “monomeric hydrate” for pertechnetate and nitridoosmate, and “monomeric anhydrous” for the perrhenate and the remaining monohalochromates. Thermal analysis was performed for compounds with different anion natures. The dependence of the complexes' thermal destruction temperature on the anion's oxidizing ability was shown. IR and MALDI analyses were performed for some complexes. The influence of crown ether on the processes of solubility and extraction of the pertechnetate anion in systems with organic solvents is shown.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 16","pages":" 2510-2522"},"PeriodicalIF":2.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A self-assembled supramolecular capsule that cocrystallizes with 1,4-disubstituted benzene derivatives† 与1,4-二取代苯衍生物†共结晶的自组装超分子胶囊

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-03-04 DOI: 10.1039/D5CE00115C

Yingcong Wu, Wanzun Ma, Dehui Wei, Gen Liu, Huiqi Wei, Xinyun Zhao, Lamei Wu, Zhengxi Huang and Zhan Zhang

引用次数: 0

Facts and reality of multi-component organic ionic-cocrystals of di-topic acid–base conjugates† 双主题酸碱偶联物多组分有机离子共晶的事实与现实

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-03-03 DOI: 10.1039/D4CE01200C

Abhay Pratap Singh and Jubaraj B. Baruah

引用次数: 0

Novel interfacial antisolvent crystallization strategy to synthesize spherical ammonium perchlorate assemblies and investigate their thermal decomposition properties 新型界面反溶剂结晶策略合成球形高氯酸铵组装体并研究其热分解性能

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-03-03 DOI: 10.1039/D4CE01176G

Yu Zhang, Weiyu Shi, Ming Yang, Shijie Zhao, Zhipeng Cheng and Yi Wang

{"title":"Novel interfacial antisolvent crystallization strategy to synthesize spherical ammonium perchlorate assemblies and investigate their thermal decomposition properties","authors":"Yu Zhang, Weiyu Shi, Ming Yang, Shijie Zhao, Zhipeng Cheng and Yi Wang","doi":"10.1039/D4CE01176G","DOIUrl":"https://doi.org/10.1039/D4CE01176G","url":null,"abstract":"Ammonium perchlorate (AP) is an extensively used solid propellant oxidizer. Controlled synthesis of spherical AP microstructures has always been a significant challenge. In this work, a novel interfacial antisolvent crystallization strategy was described to regulate the AP morphology, and spherical AP assemblies were successfully achieved. In this study, N-methylpyrrolidone (NMP) served as the solvent, and oleic acid (OA) as the antisolvent whose high-viscosity can restrict the diffusion rate to temporally stabilize the AP–NMP microdroplets. Small AP cubes recrystallized at the surface of metastable NMP microdroplets, and ultimately self-assembled into spherical hollow AP assemblies. Under the optimized conditions, the obtained spherical hollow AP assemblies had a narrow particle size distribution in the size range of 20–30 μm, and were constructed from a monolayer of cubic AP subunits whose diameter is 1–2 μm. The low-temperature decomposition (LTD) temperature of the spherical AP assemblies increased by 5 °C, whereas the high-temperature decomposition (HTD) temperature decreased by 22 °C. The temperature difference (ΔT) between the LTD and HTD significantly decreased to 128 °C compared with that of the raw AP at 155 °C. The decomposition of the spherical AP assemblies shows a faster decomposition rate and more concentrated exothermic process. The proposed interfacial antisolvent crystallization strategy is an efficient method to synthesize spherical AP assemblies.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 13","pages":" 1950-1959"},"PeriodicalIF":2.6,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Angle-dependent and liquid-responsive photonic crystals for anti-counterfeiting and optical sensing 用于防伪和光学传感的角度依赖和液体响应光子晶体

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-03-03 DOI: 10.1039/D4CE01281J

Congcong Chi, Danjie Zhang, Xin Xu, Jiahao Li, Jiangxue Ren, Xinggen Xu, Jiarong Xian, Honglei Chen and Hasan Jameel

{"title":"Angle-dependent and liquid-responsive photonic crystals for anti-counterfeiting and optical sensing","authors":"Congcong Chi, Danjie Zhang, Xin Xu, Jiahao Li, Jiangxue Ren, Xinggen Xu, Jiarong Xian, Honglei Chen and Hasan Jameel","doi":"10.1039/D4CE01281J","DOIUrl":"https://doi.org/10.1039/D4CE01281J","url":null,"abstract":"More and more attention has recently been attracted to structural color due to its eco-friendly nature and excellent color fastness. As a type of structural color material, the construction of photonic crystals (PCs) has become well-established. However, some problems still limit their applicability, such as low color saturation and complicated processing. Herein, a multi-step dropwise addition of precursors was adopted to achieve the controllable preparation of monodispersed nano-silica. The gravity deposition assembly method was then used to construct quick-drying SiO2 PCs with heterochromatic characteristics at different angles. Furthermore, the structural orderliness was improved through heat treatment after self-assembly. If the SiO2 suspension was left to stand for 72 hours to remove the supernatant, followed by gravity deposition self-assembly of the SiO2 sediment, it was observed that the SiO2 PCs assembled at the bottom of the dish exhibited bright, angle-dependent colors. The SiO2 PCs assembled on the dish wall were liquid-responsive, demonstrating good reversibility and recyclability. Therefore, a simple and rapid method for the preparation of angle-dependent and liquid-responsive SiO2 PCs was provided. This approach will broaden the applications of PCs in areas such as anti-counterfeiting, holographic displays, information encryption, liquid/optical sensing, smart packaging, and functional coatings.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 13","pages":" 1910-1917"},"PeriodicalIF":2.6,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two pH-directed coordination polymers of cadmium isomers based on a semi-rigid polycarboxylic acid: crystal structure and fluorescence sensing of tetracyclines† 基于半刚性聚羧酸的镉异构体的两种ph定向配位聚合物：四环素的晶体结构和荧光传感

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-03-03 DOI: 10.1039/D5CE00103J

Shaodong Li, Mengzhao Li, Jia Li, Yang Zhang, Feng Su, Longlong Ma, Guangyan Wang, Xinlei Li and Zhijun Wang

{"title":"Two pH-directed coordination polymers of cadmium isomers based on a semi-rigid polycarboxylic acid: crystal structure and fluorescence sensing of tetracyclines†","authors":"Shaodong Li, Mengzhao Li, Jia Li, Yang Zhang, Feng Su, Longlong Ma, Guangyan Wang, Xinlei Li and Zhijun Wang","doi":"10.1039/D5CE00103J","DOIUrl":"https://doi.org/10.1039/D5CE00103J","url":null,"abstract":"Two isomers of the coordination polymer [Cd2(μ6-dppta)(2,2′-bpy)2(H2O)]n, namely, CP-1 and CP-2 (H4dppta = 4-(2,5-dicarboxyphenoxy)phthalic acid and 2,2′-bpy = 2,2′-bipyridine), were successfully synthesized under similar solvothermal conditions by varying the pH values. Colorless irregular prismatic crystals of CP-1 were generated under strong acidic conditions (with a pH value of less than 4.4). These crystals were assembled from two varieties of Cd(II) binuclear clusters. Under mildly acidic conditions, when the pH exceeded 6.1, cuboid crystals of CP-2 possessing a linear Cd(II) chain was formed. Notably, both types of crystals co-existed in the pH ranges from 4.4 to 6.1. CP-1 and CP-2 exhibited remarkable chemical stability and outstanding tolerance in water and organic solvents. Significantly, the two CPs possessed the capacity to rapidly detect tetracyclines (including tetracycline (TC), chlortetracycline (CTC) and oxytetracycline (OTC)) in aqueous environments, manifesting favorable recyclability and a low detection limit. The underlying fluorescence quenching mechanism was disclosed through the comprehensive integration of experimental results and density functional theory computations.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 15","pages":" 2156-2167"},"PeriodicalIF":2.6,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermodynamic analyses of critical nuclei and crystallization entropy using size distributions of small clusters of two-dimensional colloidal crystals† 二维胶体晶体小簇尺寸分布的临界核和结晶熵的热力学分析

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-03-03 DOI: 10.1039/D4CE01313A

Yoshihisa Suzuki, Keigo Kishida, Hiroyasu Katsuno and Masahide Sato

{"title":"Thermodynamic analyses of critical nuclei and crystallization entropy using size distributions of small clusters of two-dimensional colloidal crystals†","authors":"Yoshihisa Suzuki, Keigo Kishida, Hiroyasu Katsuno and Masahide Sato","doi":"10.1039/D4CE01313A","DOIUrl":"https://doi.org/10.1039/D4CE01313A","url":null,"abstract":"Prenucleation clustering is important for elucidating the elementary processes of nucleation more precisely. Prenucleation clusters of two-dimensional (2D) colloidal crystals of polystyrene particles were observed at the particle level in an aqueous sodium polyacrylate solution. Both redispersing and growing clusters were observed, indicating that clustering processes were reversible. Growing clusters usually showed temporal decreases in the number of particles (hereafter referred to as “dips”) in the clusters, followed by monotonic increases afterwards. Between the maximum number of particles in redispersing clusters and the minimum number of particles in growing clusters at the dips, we determined the range of the number of particles in critical nuclei nc. We judged nc using a cluster distribution with a quasi-equilibrium approximation, since the cluster distribution did not change significantly. Assuming the numbers of apparent bonds and dangling bonds around particles, we also estimated the apparent bonding energy and entropy of crystallization thermodynamically.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 14","pages":" 2190-2194"},"PeriodicalIF":2.6,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0