Review
Chemistry, Multidisciplinary
Ying Kai Loh, Simon Aldridge
Summary: Main group carbonyl analogues derived from p-block elements have long been considered elusive. The recent isolation of acid-base free main group carbonyl analogues marked a new era, offering exciting new chemistry opportunities with their unperturbed nature. The emerging reactivity profiles of these derivatives highlight potential crossover reactivity with carbon and transition metal oxo species.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Multidisciplinary
Catherine Weetman
Summary: This Minireview discusses the rapid expansion of molecular main group multiple bonds after the discovery of breaking the double-bond rule. While these compounds show potential in small molecule activation and mimicking transition metals, their catalytic behavior is somewhat limited. The review aims to highlight the potential of these complexes in catalytic applications and further functionalizations, serving as versatile tools for modern synthetic chemists.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Tyler J. Hannah, W. Michael McCarvell, Tamina Kirsch, Joseph Bedard, Toren Hynes, Jacqueline Mayho, Karlee L. Bamford, Cyler W. Vos, Christopher M. Kozak, Tanner George, Jason D. Masuda, S. S. Chitnis
Summary: This study reports on planar bismuth complexes with geometric Lewis acidity that can be tuned by varying the triamide ligand. The structures of these complexes were investigated in both solid and solution phase, revealing multiple modes of intermolecular association. The complexes showed comparable Lewis acidity to triarylboranes, but with the added ability to bind two bases simultaneously and reduced discrimination against soft substrates. Moreover, they demonstrated high catalytic efficacy in the ring opening polymerization of cyclic esters, suggesting their potential as less toxic alternatives to tin catalysts in medical grade material production.
Editorial Material
Chemistry, Inorganic & Nuclear
Shigeyoshi Inoue, Rebecca L. Melen, Sjoerd Harder
Summary: The development in the field of main group catalysis has led to a better understanding of main group compounds and rational design of their reactivity. Ongoing research has led to the discovery of new classes of more environmentally friendly, cheap, and abundant main group catalysts as alternatives to transition metal catalysts.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Lisa Wirtz, Andre Schafer
Summary: Metallocenes with interlinked cyclopentadienide ligands, also known as ansa-metallocenes or metallocenophanes, can have drastically different properties than their unbridged parent compounds. This concept is not limited to transition metals, but can also be applied to many main-group elements. This review focuses on recent advances in synthesis, structure, and properties of metallocenophanes based on group 2, group 13, group 14, and group 15 main-group elements.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Rajendra S. Ghadwal
Summary: This paper discusses the tuning of structure and properties of main-group species (E) by controlling pi-conjugation and/or pi-donation using classical N-heterocyclic vinyl (NI-IV) ligands. By selecting appropriate carbene units, the electronic structure of derived species can be precisely controlled, resulting in stable solid materials.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Chemistry, Physical
Sagar Ghorai, Raghavendra Meena, Anju P. Joseph, Eluvathingal D. Jemmis
Summary: The theoretical analysis indicates that the difference in donor-acceptor capabilities of isocyanide and CO ligands controls the product distributions in the reductive coupling reactions mediated by Cr-Cr quintuple bonded complex and B-B multiple bonded complexes. The reactions follow different potential energy surfaces based on the pi-back bonding possibility of CO and isocyanide, leading to products with different spin multiplicities. The reactions also involve changing the oxidation state of boron centers from +I to +II, in contrast to classical main group mediated reactions where stable oxidation states are preserved. This donor-acceptor bonding interaction dominated main group chemistry is more likely to exhibit transition metal behavior.
JOURNAL OF PHYSICAL CHEMISTRY A
(2021)
Review
Chemistry, Multidisciplinary
Matthew M. D. Roy, Alvaro A. Omana, Andrew S. S. Wilson, Michael S. Hill, Simon Aldridge, Eric Rivard
Summary: This review discusses recent advances in the synthesis, versatile bonding, and reactivity of molecular main group metal hydrides, with a particular focus on their emerging use in Main Group element-mediated catalysis. The review specifically highlights research published in the open literature since 2001.
Review
Chemistry, Multidisciplinary
Samantha A. Orr, Philip C. Andrews, Victoria L. Blair
Summary: Main-group-metal-mediated transformations of imines play a significant role in synthetic chemistry by allowing the simple preparation of various nitrogen-containing compounds. Recent advances in imine C-F activation protocols and catalytic methods for hydroelementation highlight the importance of imines in sustainable chemistry. The incorporation of imines into flow chemistry has also received attention as a noteworthy development.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Yujia Hou, Yan Peng, Peng Li, Qi Wu, Junqi Zhang, Weihang Li, Guangwu Zhou, Jinrong Wu
Summary: Inspired by the hierarchical structure of mussel byssal threads, we have synthesized high-damping supramolecular elastomers (HDEs) that exhibit excellent sound absorption, vibration damping, toughness, tensile strength, and self-healing ability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Peter Hess
Summary: This paragraph introduces the periodicity of atomic positions and properties in the periodic table, and how the understanding of bonding type and strength is crucial in the discovery of innovative 2D materials. The bonding and monolayer structures of main-group II-VI elements are determined by the number of valence electrons and atom size variation.
Review
Polymer Science
Bryan T. Tuten, Christopher Barner-Kowollik
Summary: This concise overview provides insights into the use of heavier main group elements in multicomponent reactions and polymer chemistry, focusing on the properties of Group 13, Group 14, Group 15, and Group 16 elements. It briefly explores elements that participate in the reaction mechanism and remain in the macromolecular structure. State-of-the-art work in developing these reactions is highlighted, aiming to inspire other polymer chemists to explore different parts of the periodic table.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Hye Won Moon, Josep Cornella
Summary: This article provides an overview of synthetic methodologies that capitalize on the redox cycling of bismuth. It covers different catalytic methods, mechanisms, and design strategies for stabilizing low-valent and high-valent bismuth species. Additionally, a recent example of non-redox catalysis involving bismuth is discussed. The article concludes with a discussion on opportunities and future directions in this emerging field of catalysis.
Article
Chemistry, Multidisciplinary
Jade I. Fostvedt, Jocelyne Mendoza, Sacy Lopez-Flores, Diego Alcantar, Robert G. Bergman, John Arnold
Summary: This Perspective discusses the strategy of pi-loading, which involves coordinating two or more pi-donating ligands to a single metal center, to promote reactivity at group 5 transition metal-imido groups. It is found that by comparing the competitive interaction of different ligands, the reactivity of imido groups can be enhanced. This strategy is particularly important for group 5 metals and provides new insights for studying the catalytic reactions of imido groups.
Article
Chemistry, Physical
Izabela Lukaszewska, Sebastian Lalik, Artur Bukowczan, Monika Marzec, Krzysztof Pielichowski, Konstantinos N. Raftopoulos
Summary: A series of linear non-isocyanate polyhydroxyurethanes (NIPUs) were synthesized by varying the composition of the diamine component, which modulates the density of proton donors. The amount of double hydrogen bonds formed correlates with reduced molecular mobility and affects the mechanical properties of NIPUs. The proposed approach allows for tailoring the thermomechanical properties of NIPUs by modulating the density of double hydrogen-bonded carbonyls.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
