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Structural chemistry of host – guest molecular architectures based on mercury-containing macrocycles 基于含汞大环的主客体分子结构的结构化学
IF 7.7 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2021-01-01 DOI: 10.1070/RCR4998
F. M. Dolgushin, I. Eremenko
Metallomacrocycles that include several metal ions with the Lewis acid properties are peculiar antipodes of crown ethers (referred to as ‘anticrowns’ in the literature). Recently these architectures have been extensively investigated when searching for efficient and selective anion receptors. In this review, we analyze the data on the molecular and crystal structures of supramolecular complexes of mercury-containing macrocycles (hosts) with anions or neutral nucleophiles (guests). The emphasis is on the identification and systematization of the structure types of complexes in dependence of the guest molecule nature, as well as the macrocycle composition and structure. The factors affecting the selectivity of coordination and competitive ability of various electron donor moieties of guest molecules to binding to the macrocycle are considered. The data in the literature on the nonvalent host – guest and host – host interactions, which are responsible for the formation of molecular complexes and their supramolecular association in crystals, are analyzed. The formulated structural regularities of these coordination compounds with an unusual type of molecular architecture open ways to design directly promising molecular materials on their basis. The bibliography includes 161 references.
金属巨环包括几种具有路易斯酸性质的金属离子,是冠醚的特殊对映体(在文献中称为“反冠”)。近年来,在寻找高效和选择性阴离子受体时,这些结构得到了广泛的研究。本文分析了含汞大环(宿主)与阴离子或中性亲核试剂(客体)的超分子配合物的分子结构和晶体结构。重点是识别和系统的结构类型在依赖于客体分子性质,以及大环的组成和结构。考虑了影响客体分子的配位选择性和不同电子给体部分与大环结合的竞争能力的因素。本文分析了非价主-客体和主-宿主相互作用的文献数据,这些相互作用是晶体中分子复合物的形成及其超分子结合的原因。这些具有不同寻常分子结构的配位化合物的结构规律为在其基础上直接设计有前途的分子材料开辟了道路。参考书目包括161篇参考文献。
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引用次数: 0
Ligands of G-quadruplex nucleic acids g -四重核酸的配体
IF 7.7 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2021-01-01 DOI: 10.1070/RCR4968
D. Andreeva, A. Tikhomirov, A. Shchekotikhin
The review summarizes advances in the development of low-molecular-weight ligands for G-quadruplex (G4) nucleic acid structures published in the past five years. Main chemical classes of these ligands (polyaromatic compounds, macrocyclic systems, metal complexes and heterocyclic derivatives) are considered. The chemical structures of the ligands and their influence on the stabilization of quadruplexes are analyzed. Future prospects of design of G4 ligands and their applications are discussed. The bibliography includes 188 references.
本文综述了近5年来g -四重体(G4)核酸低分子量配体的研究进展。讨论了这些配体的主要化学类别(多芳香族化合物、大环体系、金属配合物和杂环衍生物)。分析了配体的化学结构及其对四络合物稳定性的影响。对G4配体的设计和应用前景进行了展望。参考书目包括188篇参考文献。
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引用次数: 5
Modern trends in controlled synthesis of functional polymers: fundamental aspects and practical applications 功能聚合物控制合成的现代趋势:基本方面和实际应用
IF 7.7 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2021-01-01 DOI: 10.1070/RCR4964
D. F. Grishin, I. Grishin
Major trends in controlled radical polymerization (CRP) or reversible-deactivation radical polymerization (RDRP), the most efficient method of synthesis of well-defined homo- and copolymers with specified parameters and properties, are critically analyzed. Recent advances associated with the three classical versions of CRP: nitroxide mediated polymerization, reversible addition-fragmentation chain transfer polymerization and atom transfer radical polymerization, are considered. Particular attention is paid to the prospects for the application of photoinitiation and photocatalysis in CRP. This approach, which has been intensively explored recently, brings synthetic methods of polymer chemistry closer to the light-induced processes of macromolecular synthesis occurring in living organisms. Examples are given of practical application of CRP techniques to obtain industrially valuable, high-tech polymeric products. The bibliography includes 429 references.
本文对可控自由基聚合(CRP)或可逆失活自由基聚合(RDRP)的主要趋势进行了批判性分析,RDRP是合成具有特定参数和性能的明确定义的共聚物和共聚物的最有效方法。本文综述了三种典型的CRP反应的最新进展:氮氧化物介导聚合反应、可逆加成-断裂链转移聚合反应和原子转移自由基聚合反应。重点讨论了光引发和光催化在CRP中的应用前景。这种方法最近得到了深入的探索,它使聚合物化学的合成方法更接近于生物体内发生的光诱导大分子合成过程。给出了CRP技术在工业上的实际应用实例,以获得具有工业价值的高科技聚合物产品。参考书目包括429篇参考文献。
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引用次数: 7
BODIPY derivatives as fluorescent reporters of molecular activities in living cells BODIPY衍生物作为活细胞分子活动的荧光报告者
IF 7.7 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2021-01-01 DOI: 10.1070/RCR4985
V. Martynov, A. A. Pakhomov
Fluorescent compounds have become indispensable tools for imaging molecular activities in the living cell. 4,4-Difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) is currently one of the most popular fluorescent reporters due to its unique photophysical properties. This review provides a general survey and presents a summary of recent advances in the development of new BODIPY-based cellular biomarkers and biosensors. The review starts with the consideration of the properties of BODIPY derivatives required for their application as cellular reporters. Then review provides examples of the design of sensors for different biologically important molecules, ions, membrane potential, temperature and viscosity defining the live cell status. Special attention is payed to BODPY-based phototransformable reporters. The bibliography includes 339 references.
荧光化合物已成为成像活细胞分子活动不可缺少的工具。4,4-二氟-4-硼-3a,4 -二氮杂-s-茚二烯(BODIPY)由于其独特的光物理性质是目前最受欢迎的荧光报告分子之一。本文综述了近年来基于bodip的细胞生物标志物和生物传感器的研究进展。回顾从考虑BODIPY衍生物作为细胞报告者应用所需的性质开始。然后,综述提供了传感器的设计实例,用于定义活细胞状态的不同生物重要分子、离子、膜电位、温度和粘度。特别注意的是基于bodp的光变形记者。参考书目包括339篇参考文献。
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引用次数: 8
Bioanalytical applications of Mössbauer spectroscopy Mössbauer光谱学的生物分析应用
IF 7.7 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2021-01-01 DOI: 10.1070/RCR5006
A. Kamnev, A. Tugarova
Data on the applications of Mössbauer spectroscopy in the transmission (mainly on 57Fe nuclei) and emission (on 57Co nuclei) variants for analytical studies at the molecular level of metal-containing components in a wide range of biological objects (from biocomplexes and biomacromolecules to supramolecular structures, cells, tissues and organisms) and of objects that are participants or products of biological processes, published in the last 15 years are discussed and systematized. The prospects of the technique in its biological applications, including the developing fields (emission variant, use of synchrotron radiation), are formulated. The bibliography includes 248 references.
本文讨论并整理了近15年来Mössbauer光谱在各种生物对象(从生物复合物和生物大分子到超分子结构、细胞、组织和生物体)中含金属成分的分子水平分析研究中的透射(主要是57Fe核)和发射(57Co核)变异体的应用数据,以及生物过程参与者或产物的对象。展望了该技术的生物应用前景,包括发展中的领域(发射变型、同步辐射的使用)。参考书目包括248篇参考文献。
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引用次数: 8
Hydrogen bonding-assisted transformations of cyclic chalcones: E/Z-isomerization, self-association and unusual tautomerism 环查尔酮的氢键辅助转化:E/ z异构化,自缔合和异常的互变异构
IF 7.7 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2021-01-01 DOI: 10.1070/RCR5035
B. Shainyan, M. Sigalov
Condensation of 1- or 2-indanones and 1,3-indandiones with aromatic or heteroaromatic carbaldehydes gives products that demonstrate various transformations and effects of general interest for organic chemistry. In the present review, phenomena such as tautomerism, E/Z-isomerization, π-conjugation, hydrogen bonding, and homo- and heteroassociation are considered. The relative stability of various isomers of cyclic chalcones is shown to be determined by the intramolecular hydrogen bonding in their molecules and the formation of associates. The same effects also result in the formation of unusual, otherwise unstable tautomers, such as 2H-indazoles. The hydrogen bonding-assisted keto-enol and E/Z-isomerization are analyzed. A novel, specific type of conjugation for the studied compounds was proposed and termed ‘roundabout’ conjugation. The bibliography includes 101 references.
1-或2-吲哚酮和1,3-吲哚酮与芳香族或杂芳香族碳醛的缩合反应产生的产物表现出有机化学中普遍感兴趣的各种转化和效应。本文主要讨论了异变异构、E/ z异构化、π共轭、氢键、同键和异键等现象。各种环查尔酮异构体的相对稳定性是由其分子内的氢键和缔合物的形成决定的。同样的作用也会导致不寻常的、不稳定的互变异构体的形成,比如2h -吲哚。对氢键辅助酮烯醇和E/ z异构化进行了分析。对所研究的化合物提出了一种新的、特定类型的共轭,称为“迂回”共轭。参考书目包括101篇参考文献。
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引用次数: 2
Functional supramolecular systems: design and applications 功能超分子系统:设计与应用
IF 7.7 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2021-01-01 DOI: 10.1070/RCR5011
I. Antipin, M. Alfimov, V. Arslanov, V. Burilov, S. Vatsadze, Y. Voloshin, K. Volcho, V. Gorbatchuk, Yulia G. Gorbunova, S. P. Gromov, S. V. Dudkin, S. Zaitsev, L. Zakharova, M. Ziganshin, A. Zolotukhina, M. Kalinina, E. Karakhanov, R. Kashapov, O. Koifman, A. Konovalov, V. Korenev, A. Maksimov, N. Mamardashvili, G. Mamardashvili, A. Martynov, A. Mustafina, R. Nugmanov, A. Ovsyannikov, P. Padnya, A. Potapov, S. Selektor, M. Sokolov, S. Solovieva, I. Stoikov, P. Stuzhin, E. Suslov, E. N. Ushakov, V. Fedin, S. Fedorenko, O. Fedorova, Y. Fedorov, S. Chvalun, A. Tsivadze, S. Shtykov, D. Shurpik, M. A. Shcherbina, L. Yakimova
The interest in functional supramolecular systems for the design of innovative materials and technologies, able to fundamentally change the world, is growing at a high pace. The huge array of publications that appeared in recent years in the global literature calls for systematization of the structural trends inherent in the formation of these systems revealed at different molecular platforms and practically useful properties they exhibit. The attention is concentrated on the topics related to functional supramolecular systems that are actively explored in institutes and universities of Russia in the last 10–15 years, such as the chemistry of host–guest complexes, crystal engineering, self-assembly and self-organization in solutions and at interfaces, biomimetics and molecular machines and devices. The bibliography includes 1714 references.
对设计创新材料和技术的功能超分子系统的兴趣,能够从根本上改变世界,正在高速增长。近年来在全球文献中出现的大量出版物要求对这些系统形成中固有的结构趋势进行系统化,这些结构趋势揭示了不同的分子平台和它们所表现出的实际有用的特性。在过去的10-15年里,俄罗斯的研究机构和大学积极探索与功能超分子系统相关的主题,如主客体复合物的化学,晶体工程,溶液和界面中的自组装和自组织,仿生学和分子机器和设备。参考书目包括1714篇参考文献。
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引用次数: 31
Recent advances in the catalytic cyclopropanation of unsaturated compounds with diazomethane 重氮甲烷催化不饱和化合物环丙烷化的研究进展
IF 7.7 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2021-01-01 DOI: 10.1070/RCR4982
L. Menchikov, E. V. Shulishov, Yu. V. Tomilov
The main achievements and development trends of the past 10–15 years related to the catalytic cyclopropanation of unsaturated compounds with diazomethane are integrated and analyzed. The attention is focused on the most efficient catalysts based on palladium compounds. Data on the effects of substrate structure and nature of catalyst components on the regio- and stereoselectivity of these reactions are systematized. Characteristic features of safe methods for diazomethane generation are considered, including the use of membrane technologies and continuous-flow and in situ preparation methods, which have prospects for industrial application. The bibliography includes 281 references.
综合分析了近10 ~ 15年来有关重氮甲烷催化不饱和化合物环丙烷化的主要成果和发展趋势。人们的注意力集中在以钯化合物为基础的高效催化剂上。有关底物结构和催化剂组分性质对这些反应的区域选择性和立体选择性的影响的数据被系统化。介绍了几种具有工业应用前景的重氮甲烷安全制备方法的特点,包括膜技术和连续流原位制备方法。参考书目包括281篇参考文献。
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引用次数: 0
Physical chemistry and technological applications of gas hydrates: topical aspects 天然气水合物的物理化学和技术应用:专题方面
IF 7.7 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2021-01-01 DOI: 10.1070/RCR4986
A. Manakov, A. Stoporev
The review considers the research and engineering works in selected fields of the physical chemistry of gas hydrates and gas hydrate technologies, mainly performed over the last 10–15 years. Data on the hydrate structures are given, including the structures formed during phase transitions at low temperatures, and on new hydrate structures that are formed under ultrahigh pressures. The dynamics of guest and host subsystems is considered in brief. Phase diagrams of systems involving hydrate formation (in particular, in some porous media) and methods for calculating phase equilibria and compositions of hydrates in these systems are analyzed. Data on the hydrates formed by ‘non-classical’ hydrate formers (alcohols, amines, ammonia, etc.) studied in the last decade and on some of their properties are presented. The Section devoted to hydrate formation kinetics addresses the effect of compounds dissolved in water (surfactants, low-dosage inhibitors) and catalysts on this process. The hydrate growth dynamics on the water surface and hydrate decomposition-formation processes in disperse systems are discussed. Among technological applications, the attention is focused on gas storage and transportation in the hydrate form. Methods for the preparation of hydrates are considered. The bibliography includes 618 references.
这篇综述主要考虑了过去10-15年来在天然气水合物物理化学和天然气水合物技术的选定领域进行的研究和工程工作。给出了水合物结构的数据,包括低温相变过程中形成的结构,以及超高压下形成的新水合物结构。简要地考虑了客户机和主机子系统的动态。分析了水合物形成体系的相图(特别是在一些多孔介质中)以及计算这些体系中水合物相平衡和组成的方法。介绍了近十年来研究的由“非经典”水合物形成物(醇、胺、氨等)形成的水合物及其一些性质的数据。水合物形成动力学部分讨论了溶解在水中的化合物(表面活性剂、低剂量抑制剂)和催化剂对这一过程的影响。讨论了水合物在水面上的生长动力学和分散体系中水合物的分解生成过程。在技术应用中,以水合物形式储存和运输天然气是人们关注的焦点。讨论了水合物的制备方法。参考书目包括618篇参考文献。
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引用次数: 1
Modern physical methods for the molecular design of single-molecule magnets 单分子磁体分子设计的现代物理方法
IF 7.7 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2021-01-01 DOI: 10.1070/RCR5002
V. Novikov, Y. Nelyubina
Many paramagnetic metal complexes have emerged as unique magnetic materials (single-molecule magnets), which behave as conventional magnets at the single-molecule level, thereby making it possible to use them in modern devices for data storage and processing. The rational design of these complexes, however, requires a deep understanding of the physical laws behind a single-molecule magnet behaviour, the mechanisms of magnetic relaxation that determines the magnetic properties and the relationship of these properties with the structure of single-molecule magnets. This review focuses on the physical methods providing such understanding, including different versions and various combinations of magnetometry, electron paramagnetic and nuclear magnetic resonance spectroscopy, optical spectroscopy and X-ray diffraction. Many of these methods are traditionally used to determine the composition and structure of new chemical compounds. However, they are rarely applied to study molecular magnetism. The bibliography includes 224 references.
许多顺磁性金属配合物已经成为独特的磁性材料(单分子磁体),它们在单分子水平上的行为与传统磁体一样,从而使它们有可能用于现代设备中的数据存储和处理。然而,这些复合物的合理设计需要深刻理解单分子磁铁行为背后的物理定律,决定磁性的磁弛豫机制以及这些性质与单分子磁铁结构的关系。本文重点介绍了提供这种理解的物理方法,包括磁强计、电子顺磁和核磁共振波谱、光谱学和x射线衍射的不同版本和不同组合。其中许多方法传统上用于确定新化合物的组成和结构。然而,它们很少用于研究分子磁学。参考书目包括参考文献224篇。
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引用次数: 0
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Russian Chemical Reviews
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