Article
Multidisciplinary Sciences
Jiri Dolezal, Sofia Canola, Prokop Hapala, Rodrigo Cezar de Campos Ferreira, Pablo Merino, Martin Svec
Summary: The authors observed the coupling between librational states and charged excited states in a phthalocyanine molecule absorbed on a surface. They provided a detailed analysis of the coupling and successfully simulated the spectral features. This research showcases the potential of using low-energy molecular modes to characterize molecular dynamics.
NATURE COMMUNICATIONS
(2022)
Article
Physics, Applied
F. Donati, A. J. Heinrich
Summary: This article discusses the research and methods employed in addressing the magnetic properties of single atom magnets. These magnets, when placed on suitable surfaces, can maintain magnetization at temperatures of 1 K or below for several days, providing a stable magnetic platform for low temperature experiments and testing magnetic recording techniques at the atomic scale. The limitations of current systems and techniques are highlighted, as well as the challenges in bridging the gap towards potential future technological applications.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Rui-Pu Wang, Chun-Rui Hu, Yu Han, Ben Yang, Gong Chen, Yang Zhang, Yao Zhang, Zhen-Chao Dong
Summary: The investigation of molecular adsorption structures on nonmetallic surfaces is important. In this study, the TERS signal from a single molecule on a nonmetallic surface was successfully detected, and the spatial resolution was found to be comparable to that on metallic substrates. This offers promise for applying subnanometer resolved TERS to various systems involving nonmetallic substrates.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Review
Nanoscience & Nanotechnology
Hongliang Chen, Chuancheng Jia, Xin Zhu, Chen Yang, Xuefeng Guo, J. Fraser Stoddart
Summary: Developing new materials is a long-standing goal in various fields, and understanding single-molecule reactions can deepen our understanding of chemical reactions and provide new frameworks in materials science. This review focuses on state-of-the-art chemical reactions in single-molecule junctions and highlights the advantages of real-time testbeds for studying reaction dynamics, intermediates, transition states, and solvent effects. The behavior of single-molecule reactions is compared with reactions in ensemble states, and the potential of leveraging single-molecule catalysis for large-scale materials production is explored.
NATURE REVIEWS MATERIALS
(2023)
Article
Chemistry, Physical
Emre Arkan, Abdulkerim Karabiber, Mehmet Ali Topcu, Zeynep Kinas, Adem Sarilmaz, Sultan Suleyman Ozel, Faruk Ozel
Summary: Engineering materials with high dielectric constant, such as nanopowders, is crucial for highly efficient TENGs. This study focuses on studying the doping effect of two different architectures of the same compound on triboelectric production. Nanopowder Cerium Oxide (CeO2) and its fiber arrangement were embedded into silicon to enhance triboelectric charge potential. Various analyses were conducted to investigate the relationship between the structure of dielectric layers and device performance. The findings show that doping with CeO2 nanoparticles and nanofibers significantly increases TENGs' power due to the formation of a more effective surface area.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Analytical
Qian Wang, Hua He, Qian Zhang, Zhenzhen Feng, Jiqiang Li, Xiaoliang Chen, Lihua Liu, Xiaojuan Wang, Baosheng Ge, Daoyong Yu, Hao Ren, Fang Huang
Summary: The developed deep-learning assisted single-molecule imaging method can accurately distinguish between monomers and complexes, allowing for real-time tracking of protein interactions with a high accuracy rate.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Jing Xi, Peipei Cen, Yan Guo, Yuzhu Li, Yuanyuan Qin, Yi-Quan Zhang, Weiming Song, Xiangyu Liu
Summary: The reversible single-crystal-to-single-crystal conversion of PBP Dy(III) complexes has been achieved, providing insights into the magnetic switches with fascinating transformation processes.
DALTON TRANSACTIONS
(2022)
Review
Chemistry, Multidisciplinary
Biao-Feng Zeng, Yu-Ling Zou, Gan Wang, Wenjing Hong, Zhong-Qun Tian, Yang Yang
Summary: Recent advances in single-molecule electronics have opened up new opportunities to investigate single-molecule chemistry. The focus has shifted towards quantitative analysis of the physical and chemical behavior of single molecules, including dynamic molecular configurations, redox states, single-molecule reactions, single-molecule sensing, and molecular adsorption behaviors.
Article
Chemistry, Physical
Joseph D. Granlie, Erik K. Hobbie, Dmitri S. Kilin
Summary: Impurities that hinder luminescence are studied in the synthesis of silicon carbide nanocrystals. The formation of these impurities and their bonding patterns are determined using excited-state molecular dynamics. Luminescence of expected oxygen impurities in SiC NCs is then studied using first-principles modeling and density matrix dissipative dynamics.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Masahiro Shimizu, Kohei Kimoto, Takuya Kawai, Toshinori Taishi, Susumu Arai
Summary: The research on using P or B doped silicon materials as negative electrode materials can effectively improve their electrical conductivity and mechanical properties, enabling lithium insertion reactions to occur at higher potentials and improving cycling performance.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Magnus S. Bauer, Sophia Gruber, Adina Hausch, Marcelo C. R. Melo, Priscila S. F. C. Gomes, Thomas Nicolaus, Lukas F. Milles, Hermann E. Gaub, Rafael C. Bernardi, Jan Lipfert
Summary: This study investigates the force stability and affinity of mutations in SARS-CoV-2 variants towards the cellular receptor ACE2. The research shows that all variants of concern have higher affinity than the wild type, while only the Alpha variant exhibits higher force stability. The study provides molecular insights into the diversity of contributions to the transmissibility of variants.
NATURE NANOTECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Jinjiang Wu, Xiao-Lei Li, Leo La Droitte, Olivier Cador, Boris Le Guennic, Jinkui Tang
Summary: By using different coordination anions, two dimeric dysprosium(III) complexes with distinct coordination geometries of the metal sites were assembled, resulting in two compounds exhibiting distinct DC and AC magnetic properties. Although both complexes have a similar Dy2O2 core, their different coordination anions lead to different magnetic interactions, namely ferromagnetic and antiferromagnetic. Ab initio calculations suggest that these interactions may result from strong intramolecular dipolar couplings that are ferromagnetic for one complex but antiferromagnetic for the other, with exchange couplings being antiferromagnetic in both cases.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Dongke Li, Jiaming Chen, Zhaoguo Xue, Teng Sun, Junnan Han, Wanghua Chen, Etienne Talbot, Remi Demoulin, Wei Li, Jun Xu, Kunji Chen
Summary: Understanding the distribution and behavior of dopants in silicon nanocrystals is crucial for achieving controllable doping at the nanoscale and developing next-generation optoelectronic devices. This study investigates the atomic-scale distributions of phosphorus and boron dopants in silicon nanocrystal multilayers. The results show that phosphorus dopants mainly concentrate on the surfaces of silicon nanocrystals to passivate dangling bonds and provide free electrons, while boron dopants exhibit a different distribution pattern, forming a dopant-shell covering on the surfaces of silicon nanocrystals and leading to damage in the crystalline lattice.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yuna Bae, Min Young Ha, Ki-Taek Bang, Sanghee Yang, Sung Yun Kang, Joodeok Kim, Jongbaek Sung, Sungsu Kang, Dohun Kang, Won Bo Lee, Tae-Lim Choi, Jungwon Park
Summary: This paper utilizes liquid-phase transmission electron microscopy to track the real-time dynamics of single-chain polymers, revealing the conformational characteristics of these polymers and their dependence on intrachain interactions and environmental factors.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Giang Truong Nguyen, Liviu Ungur
Summary: This article presents a theoretical investigation of a series of N23- -radical-bridged diterbium complexes. The study reveals that while promoting strong exchange coupling between the terbium ions, the N23- -radical induces a crystal field that interferes destructively with that of the outer ligands, thereby reducing the overall SMM behavior. Based on the theoretical results, it is concluded that the SMM behavior in this series could be further maximized if the crystal field of the outer ligands is designed to be collinear with that of the radical bridge. This conclusion can be generalized to all exchange-coupled SMMs.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
