Article
Chemistry, Multidisciplinary
Yuma Nakagawa, Masakazu Morimoto, Satoshi Yokojima, Shinichiro Nakamura, Kingo Uchida
Summary: This paper reports an efficient method for peeling the surface of crystals using multistep light irradiation with diarylethene crystals. The thin crystals fabricated by this method are only half the thickness of the original crystals, showing the potential for achieving various photomechanical behaviors depending on the irradiation conditions.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Jad Mahmoud Halabi, Marieh B. B. Al-Handawi, Rodrigo Ceballos, Pance Naumov
Summary: Despite decades of research, shape-shifting molecular crystals have not yet become a primary class of actuating materials. To develop and commercialize these materials, it is essential to build an extensive knowledge base, which is currently scattered and disjointed for molecular crystal actuators. Using machine learning, we identify inherent features and structure-function relationships that impact the mechanical response of molecular crystal actuators. Our model considers different crystal properties and deciphers their combined effects on actuation performance, inviting interdisciplinary expertise to translate basic research into technology-based development.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Xi Ma, Pengyu Li, Junxiao Wang, Meizhen Yin, Yantu Zhang
Summary: This study investigates the shape-dependent photomechanical motions of molecular crystals by preparing crystals with different shapes and studying their behavior. The results show that the size and shape variation of the crystals can affect their photomechanical motion modes.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Masato Tamaoki, Daichi Kitagawa, Seiya Kobatake
Summary: The article discusses a rapidly photoresponsive behavior exhibited by photochromic diarylethene crystals, including peeling, jumping, and cracking, under different photoirradiation conditions. The study explores the details of the rapid photoresponsive peeling based on molecular packings and the crystal size. These crystals show potential applications as macroscopic photomechanical actuators driven by molecular machinery.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Stanislav Chizhik, Pavel Gribov, Viktor Kovalskii, Anatoly Sidelnikov
Summary: This study experimentally demonstrates that thin crystals with a convex irradiated surface bend in the opposite direction when their thickness is less than the light penetration depth, due to the lens effect.
APPLIED SCIENCES-BASEL
(2022)
Review
Physics, Applied
Bo Zhou, Dongpeng Yan
Summary: This review focuses on the working mechanism of the photo-controllable macroscopic motion of dynamic molecular crystals and their practical applications in all-optical devices, crystal actuators, and biomimetic artificial muscles. The review aims to inspire the development of cutting-edge dynamic molecular crystals by combining physics, chemistry, and engineering science.
APPLIED PHYSICS REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Ziyong Li, Ji-Rui Zhang, Xu-Ke Tian, Shuren Yang, Si Chen, Hui Zhou, Xiao-Gang Yang
Summary: Fluorescent dithienylethene-based photochromic molecule BFBDTE exhibits visible light-controlled fluorescence and thermally activated delayed fluorescence (TADF) switching, as well as rapid and repeatable cyclization and cycloreversion reactions in PMMA. It also demonstrates a remarkable on-off photoelectronic response between the open- and closed-form and holds promise for applications in photoswitchable molecular devices and optical memory storage systems.
Article
Chemistry, Inorganic & Nuclear
Ejaz Ahmed, Stanislav Chizhik, Anatoly Sidelnikov, Elena Boldyreva, Pance Naumov
Summary: This study investigates the direct and indirect effects of exposing a photoreactive single crystal to light at wavelengths offset from its absorption maximum. By comparing the dynamics of macroscopic crystal deformation under different wavelength irradiation, it reveals that different excited states are involved in isomerization when irradiated at different tails of the same absorption band.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Susnata Pramanik, Brice Kauffmann, Stefan Hecht, Yann Ferrand, Ivan Huc
Summary: A study found that a carbohydrate guest can induce opposite handedness when binding to a foldamer containing a diarylethene, enabling chiroptical switching of an achiral host.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Kanae Yano, Ryo Nishimura, Yohei Hattori, Masakazu Morimoto, Haruki Sugiyama, Takashi Kamitanaka, Satoshi Yokojima, Shinichio Nakamura, Kingo Uchida
Summary: Photoinduced topographical changes were observed on the surface of a single crystal of 7-methoxycoumarin upon UV light irradiation, with different reactions and crystal formations depending on the wavelength of UV light. Additionally, photoinduced amorphization was found on the coumarin crystal surface, along with reverse bending after prolonged irradiation.
Article
Chemistry, Physical
Wenwen Xu, David M. M. Sanchez, Umberto Raucci, Hantao Zhou, Xinning Dong, Mingqiu Hu, Christopher J. J. Bardeen, Todd J. J. Martinez, Ryan C. C. Hayward
Summary: By incorporating diarylethene microcrystals into a polyethylene terephthalate matrix, highly ordered and compliant photomechanical composites with superior performance compared to single crystals are achieved. These composites exhibit rapid response times, sustain a high level of performance over numerous cycles, and generate high work densities.
Article
Materials Science, Multidisciplinary
Sunjae Kim, Sangheon Jeon, Seon Yeong Chae, Myunghun Shin, Jong Hyun Seo, Suck Won Hong, Wan Sik Hwang
Summary: The reversible photoinduced wettability of β-Ga2O3 thin films with different thicknesses under ultraviolet C irradiation is investigated and compared with an amorphous SiO2 surface. The Ga2O3 surface shows reversible photoinduced wettability under ultraviolet-C radiation centered at 254 nm, and the critical transition time is affected by the film thickness. The photoinduced Ga2O3 surface also exhibits antimicrobial activity.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Pan Hong, Nuo-Hua Xie, Kai Xiong, Jing Liu, Ming-Qiang Zhu, Chong Li
Summary: A visible-light-driven solid-state near-infrared fluorescent bistable molecular switch TDI-4(DTE-TPE) was constructed by covalently coupling aggregation-induced emissive tetraphenylethylene (TPE), photochromic dithienylethene (DTE), and NIR emissive terrylene diimide (TDI). This molecule exhibits enhanced NIR emission in the solid state and can switch between fluorescent and non-fluorescent states under visible light irradiation.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Qiaozhi Zhu, Jiaqi Zuo, Xinni Ping, Yuqing Zhu, Xuting Cai, Zuping Xiong, Zhaosheng Qian, Hui Feng
Summary: This study introduces two photoactive units with varied conjugated structures into an AIE-active tetraarylethene skeleton, achieving multicolor photochromic systems with a color and fluorescence dual-signaling mode and selective response to different wavelengths of light. The study finds that the photo-triggered photochromism is attributed to the reversible cyclization/cycloreversion reaction, and the fatigue of photochromism in solution is due to the occurrence of cyclization-dehydrogenation reaction under UV irradiation but it can be avoided when visible light is used. Introducing two photoactive units can also significantly improve the thermal stability of cyclized products and fatigue resistance to UV irradiation, and it can greatly promote the cyclization efficiency in solution enhancing photochromic performance.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Polymer Science
Philipp Neidinger, Joshua Davis, Joshua A. Carroll, Jochen Kammerer, Esa Jaatinen, Sarah L. Walden, Andreas-Neil Unterreiner, Christopher Barner-Kowollik
Summary: A near infrared action plot from 620 to 950 nm for gold nanorod (AuNR) mediated free-radical polymerization is reported, probing the wavelength-by-wavelength monomer to polymer conversion with an identical number of photons at each wavelength.
Article
Chemistry, Multidisciplinary
Kohei Morimoto, Daichi Kitagawa, Fei Tong, Kevin Chalek, Leonard J. Mueller, Christopher J. Bardeen, Seiya Kobatake
Summary: High-quality single crystals of 9-methylanthracene exhibit more homogeneous reaction kinetics compared to polycrystalline samples, resulting in a linear expansion correlated with reaction progress. This class of solid-state phase change material shows clear linear expansion during 100% photoconversion, demonstrating potential for actuation applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Nanoscience & Nanotechnology
Xinning Dong, Tianyi Guo, Daichi Kitagawa, Seiya Kobatake, Peter Palffy-Muhoray, Christopher J. Bardeen
Summary: Hybrid organic-inorganic composites based on organic photochromic crystals embedded in inorganic templates offer a new approach to photomechanical materials. In this study, the hybrid approach is extended to porous SiO2 membranes, showing similar photomechanical behavior. The results suggest that optimizing the organic filling and template thickness could greatly improve the work output.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Chemistry, Multidisciplinary
Kohei Morimoto, Daichi Kitagawa, Christopher J. J. Bardeen, Seiya Kobatake
Summary: Photoreactive molecular crystals have been extensively studied as next-generation functional materials. This review summarizes multiple examples of photochemical reactions in the crystalline phase, which exhibit non-classical kinetic behavior. Different theoretical methods for describing this behavior are discussed, providing a foundation for understanding and analyzing photochemical reaction kinetics in crystals for future research.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Mami Isobe, Daichi Kitagawa, Seiya Kobatake
Summary: In this study, hyperbranched hollow crystals of 1,2-bis(2,5-dimethyl-3-thienyl)perfluorocyclopentene were fabricated on a concave surface of a spherical glass substrate using sublimation. The number of branched structures in the hollow crystals was dependent on the substrate curvature. Compared to the sublimation process on a flat glass substrate, two distinct thin film domains were formed on the spherical glass substrate, and under high relative humidity conditions, the boundaries between these domains gradually moved from the center to the edge, resulting in the dense production of hyperbranched hollow crystals on the entire surface of the substrate.
Article
Electrochemistry
Kingo Ariyoshi, Kohei Nishimura, Daichi Kitagawa
Summary: The electrode potential of Li-insertion materials is determined by their redox center rather than their constituent elements.
Review
Chemistry, Multidisciplinary
Wegood M. Awad, Daniel W. Davies, Daichi Kitagawa, Jad Mahmoud Halabi, Marieh B. Al-Handawi, Ibrahim Tahir, Fei Tong, Gonzalo Campillo-Alvarado, Alexander G. Shtukenberg, Tamador Alkhidir, Yuki Hagiwara, Mubarak Almehairbi, Linfeng Lan, Shodai Hasebe, Durga Prasad Karothu, Sharmarke Mohamed, Hideko Koshima, Seiya Kobatake, Ying Diao, Rajadurai Chandrasekar, Hongyu Zhang, Changquan Calvin Sun, Christopher Bardeen, Rabih O. Al-Kaysi, Bart Kahr, Pance Naumov
Summary: Molecular crystals have diverse physical properties and can be studied by responding to electric, magnetic, and light fields. The mechanical properties of molecular crystals enhance our understanding of weakly bound molecules under internal and external forces. The importance of mechanical properties to practical applications and the need for improvement in measurement techniques and conceptual tools are emphasized.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Electrochemistry
Kingo Ariyoshi, Kohei Nishimura, Daichi Kitagawa
Summary: This study employs the DV-X alpha method to investigate the electronic structures of Li-insertion materials and transition-metal aqua-complexes, revealing the correlation between solid-state redox potentials and their redox centers.
Article
Chemistry, Physical
Wangxiang Li, Daichi Kitagawa, Seiya Kobatake, Elena Bekyarova, Christopher J. Bardeen
Summary: This work demonstrates the use of electron beam lithography to create sub-micron structural features on single photomechanical crystals. The height increase of these features can be reversed and undergo multiple cycles, and the changes are strong enough to rupture a graphene sheet placed on top of the crystals. A dynamic extrusion model is proposed to explain the amplification of molecular-level photomechanical changes through nanoscale features.
NANOSCALE HORIZONS
(2022)
Article
Materials Science, Multidisciplinary
Shota Hamatani, Daichi Kitagawa, Rikuto Maegawa, Seiya Kobatake
Summary: In this study, nanoparticles composed of a photochromic diarylbenzene were prepared using both ball-milling and reprecipitation methods, showing different crystalline states and reversible T-type photochromic behavior. The research provides a convenient and useful way to prepare nanoparticles with different thermal back reactivity from one molecule.
MATERIALS ADVANCES
(2022)
Article
Chemistry, Physical
Sergey Yu. Ketkov, Sheng-Yuan Tzeng, Elena A. Rychagova, Anton N. Lukoyanov, Wen-Bih Tzeng
Summary: Metallocenes, including methylcobaltocene, play important roles in various fields of chemistry. The ionization energy and vibrational structure of (Cp ')(Cp)Co can be influenced by introducing methyl substituents. The mass-analyzed threshold ionization spectrum and DFT calculations provide accurate information about the properties and transformations of (Cp ')(Cp)Co.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Review
Chemistry, Physical
Qifeng Mu, Jian Hu
Summary: Polymer mechanochemistry has experienced a renaissance due to the rapid development of mechanophores and principles governing mechanochemical transduction or material strengthening. It has not only provided fundamental guidelines for converting mechanical energy into chemical output, but also found applications in engineering and smart devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Da Hye Yang, Francesco Ricci, Fredrik L. Nordstrom, Na Li
Summary: Through systematic evaluation of the oiling-out behavior of procaine, we identified both stable and metastable liquid-liquid phase separation, and established phase diagrams to assist in rational selection of crystallization strategies.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Vikki Anand Varma, Simmie Jaglan, Mohd Yasir Khan, Sujin B. Babu
Summary: Designing engineering structures like nanocages, shells, and containers through self-assembly of colloids is a challenging problem. This work proposes a simple model for the subunit, which leads to the formation of monodispersed spherical cages or containers. The model with only one control parameter can be used to design cages with the desired radius.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Hainan Jiang, Yaolong He, Xiaolin Li, Zhiyao Jin, Huijie Yu, Dawei Li
Summary: The cycling lifespan and coulombic efficiency of lithium-ion batteries are crucial for high C-rate applications. The Li-ion concentration plays a crucial role in determining the mechanical integrity and structural stability of electrodes. This study focuses on graphite as the working electrode and establishes an experimental system to investigate the mechanical properties of composite graphite electrode at different C-rates. Considering the effect of Li-ion concentration in stress analysis is found to be significant.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Zhiye Wang, Yunchuan Li, Mingjun Sun
Summary: This study investigates the influence of intramolecular pi-pi interactions on the electronic transport capabilities of molecules. By designing and analyzing three pi-conjugated molecules, the researchers observe that different pi-conjugated structures have varying effects on electron transport. The findings provide a theoretical foundation for designing single-molecule electronic devices with multiple electron channels based on intramolecular pi-pi interactions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Yuandong Xu, Haoyang Feng, Chaoyang Dong, Yuqing Yang, Meng Zhou, Yajun Wei, Hui Guo, Yaqing Wei, Jishan Su, Yingying Ben, Xia Zhang
Summary: Hollow MoS2 cubes and spheres were successfully synthesized using a one-step hydrothermal method with the hard template method. The hollow MoS2 cubes exhibited higher specific capacitance and energy density compared to the hollow MoS2 spheres. The symmetrical supercapacitors assembled with these hollow structures showed good performance and high capacity retention after multiple cycles. These findings suggest that controlling the pore structure and surface characteristics of MoS2 is crucial for enhancing its electrochemical properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Ainhoa Oliden-Sanchez, Rebeca Sola-Llano, Joaquin Perez-Pariente, Luis Gomez-Hortiguela, Virginia Martinez-Martinez
Summary: The combination of photoactive molecules and inorganic structures is important for the development of advanced materials in optics. In this study, bulky dyes were successfully encapsulated in a zeolitic framework, resulting in emission throughout the visible spectrum.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Miaomiao Zhang, Cunyuan Pei, Qiqi Xiang, Lintao Liu, Zhongxu Dai, Huijuan Ma, Shibing Ni
Summary: The design of a solid electrolyte interphase (SEI) plays a crucial role in improving the electrochemical performance of anode materials. In this study, lithium difluoro(oxalate)borate (LiDFOB) is used as an electrolyte additive to form a protective SEI film on Li3VO4 (LVO) anodes. The addition of LiDFOB results in a dense, uniform, stable, and LiF-richer SEI, which enhances the Li-ion storage kinetics. The generated SEI also prevents further decomposition of the electrolyte and maintains the morphology of LVO anodes during charge/discharge processes. This work demonstrates the effectiveness of LiDFOB as a multi-functional additive for LiPF6 electrolytes and provides insights into SEI construction for high-performance LVO anodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
B. V. Andryushechkin, T. V. Pavlova, V. M. Shevlyuga
Summary: The atomic structure of the Ag(111)-p(4 x 4)-O phase was reexamined and two phases with the same periodicity were discovered. It was demonstrated that the accepted Ag6 model is incompatible with high-resolution oxygen-sensitive STM images.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
S. L. Romo-Avila, D. Marquez-Ruiz, R. A. Guirado-Lopez
Summary: In this study, we used density functional theory (DFT) calculations to investigate the interaction between model graphene oxide (GO) nanostructures and chlorine monoxide ClO. We aimed to understand the role of this highly oxidizing species in breaking C-C bonds and forming significant holes on GO sheets. Our results showed that C-C bonds in a single graphene oxide sheet can be broken through a simple mechanism involving the dissociation of two chemically attached ClO molecules. The formation of carbonyl groups and holes on the GO surface was also observed. This study provides important insights into the degradation of carbon nanotubes and the stability of GO during the myeloperoxidase (MPO) catalytic cycle.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Alberto Garcia-Fernandez, Birgit Kammlander, Stefania Riva, Hakan Rensmo, Ute B. Cappel
Summary: In this study, the X-ray stability of five different lead halide perovskite compositions (MAPbI3, MAPbCl3, MAPbBr3, FAPbBr3, CsPbBr3) was investigated using photoelectron spectroscopy. Different degradation mechanisms and resistance to X-ray were observed depending on the crystal composition. Overall, perovskite compositions based on the MA+ cation were found to be less stable than those based on FA+ or Cs+. Metallic lead formation was most easily observed in the chloride perovskite, followed by bromide, and very little in MAPbI3. Multiple degradation processes were identified for the bromide compositions, including ion migration, formation of volatile and solid products, as well as metallic lead. CsBr was formed as a solid degradation product on the surface of CsPbBr3.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Timofei Rostilov, Vadim Ziborov, Alexander Dolgoborodov, Mikhail Kuskov
Summary: The shock-loading behavior of nanomaterials is investigated in this study. It is found that shock compaction waves exhibit a distinct two-step structure, with the formation of faster precursor waves that travel ahead of the main compaction waves. The complexity of the shock Hugoniot curve of the tested nanomaterial is described, and the effect of initial porosity on the compressed states is demonstrated.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Sergey S. Nikitin, Alexander D. Koryakov, Elizaveta A. Antipinskaya, Alexey A. Markov, Mikhail V. Patrakeev
Summary: The stability of La1/3Sr2/3Fe1-xMnxO3-delta, a perovskite-type oxide, under reducing conditions is dependent on the manganese content. Increasing the manganese content leads to a decrease in stability. The behavior of iron and manganese in the oxide shows distinct differences, which can be attributed to the difference in the enthalpy of oxidation reactions. Additionally, the change in the La/Sr ratio affects the concentration of iron and manganese ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Mosayeb Naseri, Shirin Amirian, Mehrdad Faraji, Mohammad Abdur Rashid, Maicon Pierre Lourenco, Venkataraman Thangadurai, D. R. Salahub
Summary: Inspired by the successful transfer of freestanding ultrathin films of SrTiO3 and BiFeO3, this study assessed the structural stability and investigated the electronic, optical, and thermoelectric properties of a group of two-dimensional perovskite-type materials called perovskenes. The findings revealed that these materials are wide bandgap semiconductors with potential application in UV shielding. Moreover, they exhibit better electrical and thermal conductivity at high temperatures, enabling efficient power generation in thermoelectric devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)