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Chemical Society Reviews

Xiaofan Ji, Mehroz Ahmed, Lingliang Long, Niveen M Khashab, Feihe Huang, Jonathan L Sessler
Nature uses the power of non-covalent interactions as the basis for many kinds of adhesion phenomena. Inspired by nature, scientists have prepared various synthetic adhesive materials that rely on a number of non-covalent interactions at the interfaces. Commonly used non-covalent interactions include hydrogen bonding, π-π stacking, charge transfer interactions, electrostatic interactions, hydrophobic interactions, macrocycle-based host-guest interactions, among others. Within this context, macrocycle-based host-guest interactions are of particular interest...
April 23, 2019: Chemical Society Reviews
Sara Abednatanzi, Parviz Gohari Derakhshandeh, Hannes Depauw, François-Xavier Coudert, Henk Vrielinck, Pascal Van Der Voort, Karen Leus
Mixed-metal MOFs are metal-organic frameworks that contain at least 2 different metal ions as nodes of their frameworks. They are prepared relatively easily by either a one-pot synthesis with a synthesis mixture containing the different metals, or by a post-synthetic ion-exchange method by soaking a monometallic MOF in a concentrated solution of a different (but compatible) metal-ion. More difficult is the accurate characterization of these materials. Is the formed product a mixture of monometallic MOFs or indeed a MOF with different metallic nodes? Are the metals randomly distributed or do they form domains? What is the oxidation state of the metals? How do the metals mutually influence each other, and impact the material's performance? Advanced characterization techniques are required e...
April 16, 2019: Chemical Society Reviews
Yuanting Su, Rei Kinjo
Most of the chemical and biological processes involving the fixation and transformation of small molecules have long been exclusive for metal complexes. Meanwhile, the last decades have seen a significant advance in main group chemistry that mimics transition-metal complexes, among which various boron-containing systems have been successful in mediating the small molecule activation. In this review, we focus on boron-containing heterocycles enabling the activation of σ- and π-bonds in small molecules, in conjunction with the proposed mechanisms...
April 12, 2019: Chemical Society Reviews
Chao Wei, Shengnan Sun, Daniel Mandler, Xun Wang, Shi Zhang Qiao, Zhichuan J Xu
Great attention has been recently drawn to metal oxide electrocatalysts for electrocatalysis-based energy storage and conversion devices. To find the optimal electrocatalyst, a prerequisite is an activity metric that reasonably evaluates the intrinsic electrocatalytic activity of a particular catalyst. The intrinsic activity is commonly defined as the specific activity which is the current per unit catalyst surface area. Thus, the precise assessment of intrinsic activity highly depends on the reliable measurement of catalyst surface area, which calls for the knowledge of experimental approaches for determining the surface areas of metal oxide electrocatalysts...
April 12, 2019: Chemical Society Reviews
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No abstract text is available yet for this article.
April 5, 2019: Chemical Society Reviews
Stefano Santoro, Francesco Ferlin, Lutz Ackermann, Luigi Vaccaro
C-H functionalization technologies have progressed enormously in the last decade as testified by the great number of publications that have appeared in the literature, which are receiving great attention from researchers from different areas of expertise. While most of the protocols reported realize the C-H functionalization processes under batch conditions, there is a growing interest in the development of continuous-flow procedures aiming at increasing the performances of established methodologies or the definition of otherwise unfeasible transformations...
April 3, 2019: Chemical Society Reviews
Paramasivam Sivaguru, Zikun Wang, Giuseppe Zanoni, Xihe Bi
In recent years, radical C-C bond cleavage reactions have been increasingly understood and used to perform transformations that complement traditional ionic processes. However, to date radical C-C bond cleavage/functionalization reactions have not been the subject of a dedicated review. Herein we summarize the most recent and significant developments in the radical activation and functionalization of carbon-carbon bonds, with an emphasis on both synthetic outcomes and reaction mechanisms, and highlight how these radical C-C bond cleavage reactions enable challenging transformations...
March 22, 2019: Chemical Society Reviews
Jinlong Gong, Can Li, Michael R Wasielewski
Developing sustainable energy resources is one of the most urgent missions for human beings as increasing energy demand is in drastic conflict with limited global fossil fuels. Among the various types of sustainable energy resources, solar energy is considered to be promising due to its inexhaustible supply, universality, high capacity, and environmental friendliness. However, natural solar irradiation is decentralized, intermittent and fluctuates constantly. Therefore, effective utilization of solar energy in a clean, economic, and convenient way remains a grand challenge...
March 21, 2019: Chemical Society Reviews
Jacob A Spies, Ethan A Perets, Katherine J Fisher, Benjamin Rudshteyn, Victor S Batista, Gary W Brudvig, Charles A Schmuttenmaer
As the challenges in science increase in scope and interdisciplinarity, collaboration becomes increasingly important. Our groups have maintained close collaborations for solar fuels research over the past decade. Based on this experience, we discuss strategies for collaboration between experiment and theory including facilitation of effective communication and navigation of problems that arise. These strategies are illustrated by case studies of collaborative efforts in solar fuels research pertaining to interfacial electron transfer in dye-sensitized metal oxides and the design and mechanism of water-oxidation catalysts...
March 14, 2019: Chemical Society Reviews
Denis Gentili, Massimo Gazzano, Manuela Melucci, Derek Jones, Massimiliano Cavallini
Polymorphism is a widespread phenomenon occurring in many solid materials having important effects in many scientific disciplines. Since molecular packing can determine the functional properties of materials but is often difficult to control, polymorphism has usually been considered a drawback for technological applications. Thanks to advances in its control over the past few years, polymorphism is now often considered more as an opportunity because it allows a much wider range of functionality in, for example, a solid molecular material, where a corresponding packing type can be selected or even promoted...
March 14, 2019: Chemical Society Reviews
Stephanie A Boer, Emer M Foyle, Chriso M Thomas, Nicholas G White
This review covers significant advances in the use of O-H groups in anion coordination chemistry. The review focuses on the use of these groups in synthetic anion receptors, as well as more recent developments in transport, self-assembly and catalysis.
March 12, 2019: Chemical Society Reviews
Xiaodong Chen, John A Rogers, Stéphanie P Lacour, Wenping Hu, Dae-Hyeong Kim
No abstract text is available yet for this article.
March 8, 2019: Chemical Society Reviews
Jianyong Zhang, Junxing Chen, Sheng Peng, Shuyin Peng, Zizhe Zhang, Yexiang Tong, Philip W Miller, Xiu-Ping Yan
Searching for porous materials that can be employed as solid stationary phases for chromatographic separations, porous membrane matrixes and solid supports for catalysis has become an active research area. Strategies for embedding emerging porous materials in columnar systems and their subsequent applications (separation and catalysis) have been developed, which benefit from the remarkable progress in the discovery and development of porous materials based on metal-organic coordination or dynamic covalent bonding such as metal-organic frameworks (MOFs), covalent-organic frameworks (COFs), porous organic cages, and porous organic polymers...
March 7, 2019: Chemical Society Reviews
Xi Kang, Manzhou Zhu
Due to their atomically precise structures and intriguing chemical/physical properties, metal nanoclusters are an emerging class of modular nanomaterials. Photo-luminescence (PL) is one of their most fascinating properties, due to the plethora of promising PL-based applications, such as chemical sensing, bio-imaging, cell labeling, phototherapy, drug delivery, and so on. However, the PL of most current nanoclusters is still unsatisfactory-the PL quantum yield (QY) is relatively low (generally lower than 20%), the emission lifetimes are generally in the nanosecond range, and the emitted color is always red (emission wavelengths of above 630 nm)...
March 6, 2019: Chemical Society Reviews
Chris R Arumainayagam, Robin T Garrod, Michael C Boyer, Aurland K Hay, Si Tong Bao, Jyoti S Campbell, Jingqiao Wang, Chris M Nowak, Michael R Arumainayagam, Peter J Hodge
In 2016, unambiguous evidence for the presence of the amino acid glycine, an important prebiotic molecule, was deduced based on in situ mass-spectral studies of the coma surrounding cometary ice. This finding is significant because comets are thought to have preserved the icy grains originally found in the interstellar medium prior to solar system formation. Energetic processing of cosmic ices via photochemistry and radiation chemistry is thought to be the dominant mechanism for the extraterrestrial synthesis of prebiotic molecules...
February 28, 2019: Chemical Society Reviews
Davin Tan, Felipe García
In the last few decades, mechanochemistry has become rapidly established as a powerful tool enabling environmentally-benign and sustainable chemical syntheses. Not only have these techniques been demonstrated as viable alternatives to traditional solution-based syntheses, but they have also received attention for their ability to enable new reactivity and "unlocking" novel compounds inaccessible by conventional methods. Reflecting the rising popularity of mechanochemistry, many excellent reviews highlighting its benefits have recently been published...
February 26, 2019: Chemical Society Reviews
Putla Sudarsanam, Elise Peeters, Ekaterina V Makshina, Vasile I Parvulescu, Bert F Sels
Heterogeneous catalysis is a promising technology for the valorization of renewable biomass to sustainable advanced fuels and fine chemicals. Porosity and nanostructure are the most versatile features of heterogeneous solid catalysts, which can greatly determine the accessibility of specific active sites, reaction mechanisms, and the selectivity of desirable products. Hence, the precise tuning of porosity and nanostructure has been a potential strategy towards developing novel solid catalysts with indispensable characteristics for efficient biomass valorization...
February 20, 2019: Chemical Society Reviews
Barbara Stadlober, Martin Zirkl, Mihai Irimia-Vladu
With the advent of the Internet of Everything (IoE) era, our civilization and future generations will employ an unimaginable complex array of electronics and sensors in daily life. Ferroelectric polymers represent a core group of materials supporting the fast development of IoE, and their functionality, straightforward processing and unmatched versatility make them prime candidates for integration in multifaceted devices. Since they are highly selective, highly responsive, highly scalable, self-powering and compatible with flexible and stretchable substrates, they can be easily integrated with various electronics into numerous stand-alone objects and even into skin as sensors for monitoring diverse mechanical, thermal and vital parameters...
February 18, 2019: Chemical Society Reviews
Abolhassan Noori, Maher F El-Kady, Mohammad S Rahmanifar, Richard B Kaner, Mir F Mousavi
Over the past decade, electrochemical energy storage (EES) devices have greatly improved, as a wide variety of advanced electrode active materials and new device architectures have been developed. These new materials and devices should be evaluated against clear and rigorous metrics, primarily based on the evidence of real performances. A series of criteria are commonly used to characterize and report performance of EES systems in the literature. However, as advanced EES systems are becoming more and more sophisticated, the methodologies to reliably evaluate the performance of the electrode active materials and EES devices need to be refined to realize the true promise as well as the limitations of these fast-moving technologies, and target areas for further development...
February 11, 2019: Chemical Society Reviews
Piotr Mazurek, Sindhu Vudayagiri, Anne Ladegaard Skov
The tutorial aims to equip the beginners in silicone research with the knowledge to formulate recipes and process elastomer networks, targeting specific properties related to soft applications such as stretchable electronics without compromising the mechanical integrity of the elastomer. In doing so, we hope to stimulate further research in the area of tailor-made soft silicone elastomers for novel applications and allow researchers to bypass the limitations imposed by the use of commercially available silicone elastomer formulations...
February 11, 2019: Chemical Society Reviews
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