Article
Chemistry, Physical
Sajesh P. Thomas, Reshmi Thomas, Thomas Bjorn E. Gronbech, Martin Bondesgaard, Aref H. Mamakhel, Victoria Birkedal, Bo B. Iversen
Summary: The study demonstrates systematic tuning of optical bandgaps in molecular crystals by generating molecular alloys/solid solutions of diphenyl dichalcogenides containing weak chalcogen bonding interactions involving S, Se, and Te atoms. Despite diverse chalcogen bonding interactions, the dichalcogenide crystals exhibit isostructural interaction topologies, enabling the formation of solid solutions. The alloy crystals show Vegard's law-like trends in unit cell dimensions and non-linear trends in optical bandgap variations with compositions, supported by energy-dispersive X-ray and spatially resolved Raman spectroscopic studies indicating significant homogeneity in the domain structure of the solid solutions.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Armando Navarro-Huerta, Marcus J. Jellen, Jessica Arcudia, Simon J. Teat, Ruben A. Toscano, Gabriel Merino, Braulio Rodriguez-Molina
Summary: This study focuses on using C-H-F-C contacts in solid-state to fine-tune internal motion, by generating close-fitting cavities through a set of interactions. Rotators experience fast angular displacements due to their low rotational activation energies.
Article
Chemistry, Multidisciplinary
Kui Chen, Wenbo Wu, Hongtu Zhao, Yiwei Wei, Shanshan Zhu, Xin Huang, Na Wang, Ting Wang, Hongxun Hao
Summary: By utilizing a cocrystal strategy, a brittle, photo-driven dynamic crystal was successfully transformed into flexible dynamic crystals, improving both fluorescence and photo-response properties. The research found that the cocrystals exhibit rare 2D elastic bending and twistable deformation properties, which have not been observed in cocrystals before. Through crystallographic analysis, experimental tests, and theoretical calculations, the mechanisms behind these properties were determined. Furthermore, a flexible photo-controlled switch was designed and tested based on the multiple flexibilities of the cocrystals.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Yu Liu, Peng Yang, Keke Zhang, Jun Xu, Songgu Wu, Junbo Gong
Summary: Mechanical flexible organic crystals with optical properties have attracted research interest. A plastic organic crystal, flufenamic acid (FFA) form III crystal, was found to exhibit highly plastic bending and hand-twistable behavior, as well as unique bending mechanofluorochromism behavior. This has implications for the design of future tunable fluorescent materials.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Jie Li, Zhengsheng Qin, Yajing Sun, Yonggang Zhen, Jie Liu, Ye Zou, Chunlei Li, Xueying Lu, Lang Jiang, Xiaotao Zhang, Deyang Ji, Liqiang Li, Huanli Dong, Wenping Hu
Summary: By regulating crystal packing and molecular design, a high mobility emissive organic semiconductor material with remarkable solid-state emission and efficient charge transport has been developed.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Shiru Song, Ji-Hui Yang, Xin-Gao Gong
Summary: This work investigates the abnormal decrease of electron mobility in MoS2 from monolayer to bulk. It attributes the abnormality to stronger intravalley scattering in the monolayer and weaker intervalley scattering in the bulk. The study proposes a phonon-energy-resolved matching function to identify scattering channels and shows that multiple valleys do not necessarily lead to strong intervalley scattering.
Article
Chemistry, Physical
Yujing Guo, Shuyi Zhu, Haoming Bao, Hao Fu, Hongwen Zhang, Le Zhou, Yue Li, Weiping Cai
Summary: This study demonstrates the significant impact of interfacial defects on the SERS activity and provides important guidance for the design and fabrication of efficient SERS substrates.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Jun-Chao Liu, Yong Ai, Qin Liu, Yi-Piao Zeng, Xiao-Gang Chen, Hui-Peng Lv, Ren-Gen Xiong, Wei-Qiang Liao
Summary: This article presents a solid-liquid crystal biphasic ferroelectric material, cholestanyl 4-X-benzoate (4X-CB, X = Cl, Br, and I), that exhibits biferroelectricity in both the solid and liquid crystal phases. The liquid crystal phase of 4X-CB is identified as a cholesteric phase with a helical structure, different from the ordinary chiral smectic ferroelectric liquid crystal phase. Furthermore, the spontaneous polarization of 4X-CB in both phases can be regulated by different halogen substitutions. It is suggested that 4X-CB is the first ferroelectric material with tunable biferroelectricity, providing a feasible case for the performance optimization of solid-liquid crystal biphasic ferroelectrics.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shasha Jin, Molly M. Haskins, Cheng-Hua Deng, Catiucia R. M. O. Matos, Michael J. Zaworotko
Summary: This study utilized crystal engineering principles to prepare and characterize various crystal forms of Hesperetin (HES), including new ionic cocrystals. One cocrystal, HES with the sodium salt of HES (NESNAH), showed improved bioavailability with faster C-max and higher solubility compared to pure HES.
Article
Multidisciplinary Sciences
Ya Nan Ye, Kunpeng Cui, Wei Hong, Xueyu Li, Chengtao Yu, Dominique Hourdet, Tasuku Nakajima, Takayuki Kurokawa, Jian Ping Gong
Summary: This study investigates the molecular mechanism of abnormally large nonsoftening, quasi-linear but inelastic deformation in tough hydrogels made of hyperconnective physical network and linear polymers as molecular glues. The interplay between the hyperconnectivity of the network and effective load transfer by molecular glues prevents stress concentration, allowing the gels to exhibit unique large nonsoftening, quasi-linear but inelastic deformation characteristics.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Chemistry, Applied
Xiumian Cao, Jiang Peng, Wenquan Wang, Weiqing Xu, Shuping Xu
Summary: In recent years, there has been a lot of interest in organic single crystals that exhibit both elastic and photoluminescent properties due to their potential applications in various fields. However, there is still a lack of elastic organic crystals that also have two-photon luminescence (2PL) waveguiding properties, which are vital for applications like near-infrared bioimaging and nonlinear optical photonic devices. This study introduces an elastic single crystal called anthracene-9,10-dicarbaldehyde (An-DC) which exhibits reversible bending on its (100) face due to molecular interactions and emits strong fluorescence when excited by blue-violet light. Interestingly, it also demonstrates excellent two-photon fluorescence emission when stimulated by near-infrared light, making it suitable for waveguide applications.
Article
Chemistry, Multidisciplinary
Torvid Feiler, Nobuhiro Yasuda, Adam A. L. Michalchuk, Franziska Emmerling, Biswajit Bhattacharya
Summary: Through a combination of μ-focus synchrotron X-ray diffraction and ab initio simulation, we have investigated for the first time the atomistic origin of elastic bending in a single-component organic crystal, which exhibits fascinating behavior with potential for developing advanced technologies.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Yoshihiro Sekine, Sotaro Kusumoto, Akira Sugimoto, Manabu Nakaya, Shinya Hayami
Summary: Elastic crystals are novel materials for optoelectronics and solar cells. This study reports the preparation of mechanically flexible compounds using metal coordination complexes. The packing structure of the crystals was influenced by the crystallization solvent, and control over the packing process was crucial in obtaining designed flexibilities and structures. New Pd and Pt complexes with high elastic strains were demonstrated, and the effects were attributed to microscopic changes in bond distance between metals and ligands. These findings are expected to inspire the development of metal-complex-based flexible crystals.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Minseong Kim, Jinwoo Park, Kyung Min Lee, Eeseul Shin, Suebin Park, Joonhee Lee, Chanoong Lim, Sang Kyu Kwak, Dong Woog Lee, Byeong-Su Kim
Summary: This study presents a peptidomimetic approach using poly(ethylene glycol) (PEG) as a platform to evaluate the compositional relationship between key amino acid residues and the role of the polyether backbone in interfacial adhesive interactions. The results reveal highly synergistic surface interactions among PEGtides and the critical role of catechol-amine synergy and diverse hydrogen bonding. Molecular dynamics simulations verify these findings. This study provides insights into the design of simplified peptidomimetic polymers within a polyether backbone.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Hongmei Yu, Baoxi Zhang, Wenhui Xing, Meiju Liu, Dezhi Yang, Guorong He, Fengfeng Wang, Li Zhang, Ningbo Gong, Yang Lu, Guanhua Du
Summary: This paper reports the cocrystallization of Temozolomide with p-hydroxybenzoic acid, resulting in five different forms characterized and evaluated through single-crystal X-ray diffraction, powder X-ray diffraction, Fourier transform infrared spectroscopy, thermal analysis, and stability tests. The study found that the incorporation of solvent/water molecules, supramolecular synthon distinctions, and conformation flexibility of TMZ contribute to the crystal form differences, with the feeding ratio of starting components and the solvent used playing a crucial role in determining the resulting form.
CRYSTAL GROWTH & DESIGN
(2022)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)