Crystallography Reports最新文献_第4页

Morphology and Spatial Distribution of Ordered Domains in GaInP/GaAs(001) According to Transmission Electron Microscopy 根据透射电子显微镜观察 GaInP/GaAs(001)中有序域的形态和空间分布

IF 0.6 4区材料科学

Crystallography Reports Pub Date : 2024-09-27 DOI: 10.1134/S1063774524601394

A. V. Myasoedov, N. A. Bert, N. A. Kalyuzhnyy, A. M. Mintairov

引用次数: 0

Effect of Temperature on the Stability of the Precursor Cluster of the Thermolysin Crystal 温度对热溶解素晶体前体簇稳定性的影响

IF 0.6 4区材料科学

Crystallography Reports Pub Date : 2024-09-27 DOI: 10.1134/S1063774524600480

Yu. V. Kordonskaya, V. I. Timofeev, M. A. Marchenkova, Yu. V. Pisarevsky, S. Yu. Silvestrova, Yu. A. Dyakova, M. V. Kovalchuk

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Diversity of [M(IO3)6] Building Blocks in Iodate Families and the New Trigonal Polymorph of Cs2HIn(IO3)6 碘酸盐家族中[M(IO3)6]构件的多样性和 Cs2HIn(IO3)6 的新三方多晶体

IF 0.6 4区材料科学

Crystallography Reports Pub Date : 2024-09-27 DOI: 10.1134/S1063774524601382

O. V. Reutova, E. L. Belokoneva, A. S. Volkov, O. V. Dimitrova

{"title":"Diversity of [M(IO3)6] Building Blocks in Iodate Families and the New Trigonal Polymorph of Cs2HIn(IO3)6","authors":"O. V. Reutova, E. L. Belokoneva, A. S. Volkov, O. V. Dimitrova","doi":"10.1134/S1063774524601382","DOIUrl":"10.1134/S1063774524601382","url":null,"abstract":"<div>Crystals of a new high-symmetry structural modification of Cs2HIn(IO3)6 which crystallizes in sp. gr. R(bar {3}) with the unit cell parameters a = 11.8999(4) Å, c = 11.6513(5) Å, was obtained under hydrothermal conditions. The crystal-chemical comparison with the previously characterized triclinic modification of this compound was carried out. Both structures are composed of isolated [In(IO3)6]3– blocks. The new modification belongs to the family of trigonal iodates isostructural with the compound K2Ge(IO3)6. The local symmetry of individual [M(IO3)6] blocks (M = Ge, Ti, Sn, Ga, In, and some other metals) was analyzed. The structural systematics of iodate families was proposed based on the comparative crystal-chemical analysis. The influence of the cation composition and the synthesis conditions on the symmetry and topology of the crystal structures and the effect of the local symmetry of individual blocks on the physical properties of the compounds are discussed.</div>","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":"69 4","pages":"485 - 499"},"PeriodicalIF":0.6,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Halogen Bonds in 2,5-Diiodo-1,4-dimethylbenezene Derivatives 2,5-Diiodo-1,4-dimethylbenezene 衍生物中的卤素键

IF 0.6 4区材料科学

Crystallography Reports Pub Date : 2024-09-27 DOI: 10.1134/S106377452460131X

K. Rajakumar, D. A. Zherebtsov, S. A. Nayfert, A. A. Osipov, S. A. Adonin, D. V. Spiridonova

{"title":"Halogen Bonds in 2,5-Diiodo-1,4-dimethylbenezene Derivatives","authors":"K. Rajakumar, D. A. Zherebtsov, S. A. Nayfert, A. A. Osipov, S. A. Adonin, D. V. Spiridonova","doi":"10.1134/S106377452460131X","DOIUrl":"10.1134/S106377452460131X","url":null,"abstract":"1,4-Di(bromomethyl)-2,5-diiodobenzene (1), 2,5-diiodo-1,4-di(hydroxymethyl)benzene diacetate (2), and 1,1'-[(2,5-diiodo-1,4-phenylene)bis(methylene)]dipyridinium diiodide (3) were synthesized, and their crystallographic data are reported. All three crystal structures are characterized by the stacked packing of the planar molecules and the presence of halogen bonds I⋅⋅⋅Br, I⋅⋅⋅O, and I⋅⋅⋅I, respectively. The largest number of halogen bonds was found in compound 1, in which there are two I⋅⋅⋅Br bonds per halogen atom. Compounds 2 and 3 contain one halogen bond per halogen atom; however, these bonds are significantly shorter than those in compound 1. All crystals were studied by IR spectroscopy and simultaneous thermal analysis. Compound 1, which has no ionic or hydrogen bonds, melts at a higher temperature compared to ionic compound 3 (218 and 200°С, respectively) due to the presence of a larger number of intermolecular halogen bonds. Compound 2 melts at a lower temperature (151°С), which is characteristic of esters.","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":"69 4","pages":"500 - 506"},"PeriodicalIF":0.6,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microfluidic-Assisted Synthesis of Hybrid Carbonate Calcium Microparticles Modified by Silver Nanoparticles 微流体辅助合成银纳米颗粒修饰的混合碳酸钙微颗粒

IF 0.6 4区材料科学

Crystallography Reports Pub Date : 2024-09-27 DOI: 10.1134/S1063774524600546

A. V. Ermakov, S. V. Chapek, E. V. Lengert, P. V. Konarev, V. V. Volkov, M. A. Soldatov, D. B. Trushina

引用次数: 0

Study of the Features of Concentration Inhomogeneities during the On-Ground-Based Processing of the Space Experiment on the Ge(Ga) Crystal Growth 研究 Ge（Ga）晶体生长空间实验的地面处理过程中的浓度不均匀特征

IF 0.6 4区材料科学

Crystallography Reports Pub Date : 2024-09-27 DOI: 10.1134/S1063774524601242

E. N. Korobeynikova, V. I. Strelov, S. I. Supel’nyak, V. N. Vlasov

引用次数: 0

Synthesis of Nano-Sized Solid Electrolyte Pr(_{{1-y}})SryF(_{{3-y}}) and the Effect of Heat Treatment on the Ionic Conductivity of Fluoride Nanoceramics 纳米尺寸固体电解质 Pr(_{{1-y}})SryF(_{{3-y}}) 的合成及热处理对氟化物纳米陶瓷离子传导性的影响

IF 0.6 4区材料科学

Crystallography Reports Pub Date : 2024-09-27 DOI: 10.1134/S106377452460145X

N. I. Sorokin, N. A. Arkharova, D. N. Karimov

{"title":"Synthesis of Nano-Sized Solid Electrolyte Pr(_{{1-y}})SryF(_{{3-y}}) and the Effect of Heat Treatment on the Ionic Conductivity of Fluoride Nanoceramics","authors":"N. I. Sorokin, N. A. Arkharova, D. N. Karimov","doi":"10.1134/S106377452460145X","DOIUrl":"10.1134/S106377452460145X","url":null,"abstract":"Solid electrolyte nanoceramics Pr(_{{1-y}})SryF(_{{3-y}}) (y = 0.03, sp. gr. (Pbar {3}c1)) were obtained by high-energy milling of melt-grown crystals, followed by cold pressing. The phase composition, microstructure, morphology, and electrical properties of nanoceramics were studied using X-ray diffraction analysis, electron microscopy, and impedance spectroscopy. The room-temperature conductivity of the synthesized Pr0.97Sr0.03F2.97 nanoceramics (σcer = 1.7 × 10−7 S/cm) is much lower than the conductivity of the original single crystal (σcrys = 4.0 × 10−4 S/cm), which is due to its low (~75% of the theoretical value) density. Heat treatment of nanoceramics at 823 K in vacuum leads to a threefold increase in σcer, and annealing at 1273 K in a fluorinating atmosphere results in further increase in conductivity (σcer = 4.3 × 10−5 S/cm) due to the collective recrystallization and significant increase in the ceramics density (up to 90%). The mechanical milling and subsequent heat treatment of Pr(_{{1-y}})SryF(_{{3-y}}) nanopowder make it possible to process single-phase highly conductive ceramics. The proposed method for the synthesis of ceramic fluoride nanomaterials as a technological form of solid electrolytes is a promising way for further developments in the field of creating fluorine-ion current sources and fluorine gas sensors.","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":"69 4","pages":"561 - 568"},"PeriodicalIF":0.6,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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On the Mechanism of Growth of Lactose Crystals from Supersaturated Solutions 论乳糖晶体从过饱和溶液中生长的机理

IF 0.6 4区材料科学

Crystallography Reports Pub Date : 2024-09-27 DOI: 10.1134/S1063774524601321

E. A. Fialkova, V. B. Shevchuk, A. I. Gnezdilova, Y. V. Vinogradova, V. I. Baronov

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Computer Simulation of the Effect of Focusing X Rays by Means of Refractive–Diffractive Lens 利用折射衍射透镜聚焦 X 射线的计算机模拟效果

IF 0.6 4区材料科学

Crystallography Reports Pub Date : 2024-09-27 DOI: 10.1134/S1063774524600467

V. G. Kohn

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Thin-Film Polydiacetylenes of a Stable Blue Phase Based on Symmetric and Asymmetric Diacetylene N-Arylcarbamates 基于对称和不对称二乙炔 N-芳基氨基甲酸酯的稳定蓝相薄膜聚二乙炔

IF 0.6 4区材料科学

Crystallography Reports Pub Date : 2024-09-27 DOI: 10.1134/S1063774524600455

A. S. Alekseev, S. Yu. Vyaz’min, A. B. Ivanov, V. V. Klechkovskaya, M. S. Lukasov

引用次数: 0