Article
Chemistry, Multidisciplinary
Guocheng Deng, Kangjae Lee, Hongwen Deng, Sami Malola, Megalamane S. S. Bootharaju, Hannu Hakkinen, Nanfeng Zheng, Taeghwan Hyeon
Summary: Understanding the origin of chirality in nanostructured materials is crucial for their applications in chiroptical and catalytic fields. In this study, a chiral AgCu superatomic cluster protected by an achiral alkynyl ligand was reported. The crystal structure of this cluster consists of an interpenetrating biicosahedral Ag17Cu2 core stabilized by various motifs. The multiple origins of chirality in Ag22Cu7 were analyzed, and circular dichroism spectra were obtained using appropriate chiral molecules.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Nanoscience & Nanotechnology
Natalia Kowalska, Filip Bandalewicz, Jakub Kowalski, Sergio Gomez-Grana, Maciej Bagiriski, Isabel Pastoriza-Santos, Marek Grzelczak, Joanna Matraszek, Jorge Perez-Juste, Wiktor Lewandowski
Summary: This study proposes an efficient method to synthesize hydrophobic nanoparticles with intrinsic chirality using liquid crystal-like ligands, and confirms the chiral geometry of these nanoparticles. The method has the potential to produce chiral plasmonic inorganic/organic nanocomposites with specific structures, expanding their applications in soft-matter based systems.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Mingfang Ma, Bo Wang, Aiyou Hao, Pengyao Xing
Summary: This study presents a co-assembly strategy to introduce hydrophilic chiral amines into OPV-appended carboxylic acids, resulting in the formation of chiral assemblies with tunable optical activity. The participation of chiral amines alters the aromatic stacking, enhances the luminescence of the OPV compounds, and facilitates the emergence of Cotton effects and circularly polarized luminescence. This work demonstrates the potential of OPV luminophores in chiroptical applications.
Review
Chemistry, Multidisciplinary
Himanshi Singh, Freya E. L. Berggoetz, Wenhao Sun, Melanie Schnell
Summary: Microwave three-wave mixing is a novel approach for studying chiral molecules in the gas phase, providing a non-linear and coherent method using resonant microwave pulses. It can differentiate between enantiomers and determine the enantiomeric excess, even in complex chiral mixtures. Furthermore, tailored microwave pulses enable control and manipulation of chirality at the molecular level. Recent developments include enantiomer-selective population transfer and achieving high enantiomeric excess using microwave pulses alone.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Mitchell D. Mills, Reilly E. Sonstrom, Zoua Pa Vang, Justin L. Neill, Haley N. Scolati, Channing T. West, Brooks H. Pate, Joseph R. Clark
Summary: The article discusses a novel method for synthesizing isotopically chiral molecules as well as a general spectroscopic technique for determining their absolute configuration and enantiomeric excess, with a focus on the application of chiral tag rotational spectroscopy.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Fenghua Zhang, Zongze Zhang, Rongjuan Liu, Jingjing Wei, Zhijie Yang
Summary: It is shown that aqueous dispersions of negatively charged inorganic nanoparticles can induce the chiral assembly of organic radical cations at the liquid-liquid interface, resulting in stable droplets covered by inorganic/organic chiral nanocomposites. Transfer of chirality from chiral organic monomers to the nanoparticle assemblies is observed. Surprisingly, opposite handedness between molecular assemblies and nanoparticle assemblies is determined. Moreover, the functionalities of these chiral droplets can be further engineered through mixing or merging, enabling the production of fluorescent emissive-tunable, magnetic, as well as magnetofluorescent dual-functional droplets.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Li Ma, Yan Liu, Cong Han, Artur Movsesyan, Peihang Li, Huacheng Li, Pan Tang, Yongqing Yuan, Shuoxing Jiang, Weihai Ni, Hao Yan, Alexander O. Govorov, Zhiming M. Wang, Xiang Lan, Li Ma
Summary: Quasi-planar chiral satellite-core nanoparticle superstructures were created using DNA origami technology. Through comprehensive theoretical studies and experimental measurements, the chiral mechanisms were explained and different optical responses were demonstrated.
Article
Physics, Multidisciplinary
Hui-Chuan Zhao, Li-Chun Bian, Tao Zhang, Guo-Jun Tong, Peng-Shuai Dai
Summary: A hierarchical chiral model for plant tendrils was established in this study to investigate the mechanism of chiral growth in biological filaments. It was found that plant tendrils can achieve regular chiral morphologies or even hierarchical chiral morphologies by adjusting their internal stresses and elastic properties, with the bend-twist coupling being more critical than the stretch-twist coupling. This work has universal significance and provides theoretical guidance for the design and optimization of chiral filament materials.
Article
Chemistry, Applied
Huiyi Feng, Junrong Pu, Sheng Wang, Shengjie Jiang, Wenqing Yang, Derong Cao, Yi-Si Feng
Summary: In this study, a pair of aggregation-induced emission (AIE) chiral fluorescence materials (R/S-BIN-Cyn enantiomers) were synthesized. The enantiomers were constructed by connecting a typical AIE molecule to a chiral 1,1'-bi-2-naphthol (BINOL) with ether linkages. The obtained enantiomers exhibited excellent AIE properties and unique state circularly polarized luminescence (CPL) behavior. The present study is expected to provide a new perspective for preparing chiral luminescent devices with solid-state CPL active.
Article
Chemistry, Multidisciplinary
Jun Zhang, Renaud A. L. Vallee, Zdravko Kochovski, Wei Zhang, Chen Shen, Florian Bertram, Nicola Pinna
Summary: In this study, chiral CuO superstructures are used as a model system to investigate the formation process of hierarchical chiral structures. The research reveals the chiral transfer mechanism between inorganic compounds and chiral organic additives. The morphology evolution of the chiral superstructure involves hierarchical assembly at different growth stages. Moreover, the study successfully reproduced the structural chirality through electro-dynamical simulations and predicted its modulation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Jiasheng Qian, Zhi-Hao Chen, Yuan Liu, Yin Li, Qingjiang Li, Shi-Liang Huang, Honggen Wang
Summary: Allenylboronates are an intriguing class of organoborons that are challenging to synthesize and typically unstable, making separation difficult. This study presents a practical and concise route to a new class of stable and easily separable allenyl B(MIDA) through hydrazination/fragmentation of B(MIDA)-propargylic alcohols. The synthesis of optically active allenyl B(MIDA) was also achieved, and interesting reactivity of the resulting product was observed.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Jian-Cai Huang, Hui Xiao, Zhixin Chen, Wenxu Zheng, Chang-Cang Huang, Shu-Ting Wu, Zenghong Xie, Naifeng Zhuang
Summary: This study discusses the fabrication of chiral organic supramolecular aggregates using chiral physical fields and the relationship between dynamic chiroptical properties and rheological nature. It also explores how adding a linking agent and salt can enhance the properties of colloids in a static state and impact the host-guest interaction dynamics.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Physical
Daisuke Sakamoto, Isabel Gay Sanchez, Jiri Rybacek, Jaroslav Vacek, Lucie Bednarova, Marketa Pazderkova, Radek Pohl, Ivana Cisarova, Irena G. Stara, Ivo Stary
Summary: This study describes an asymmetric synthesis method for the preparation of optically pure and conformationally locked oxabenzo[5]helicenes. These compounds can be transformed into cycloiridated organometallics and exhibit excellent catalytic performance in asymmetric transfer hydrogenation reactions.
Article
Chemistry, Multidisciplinary
Manuel Weh, Jessica Ruehe, Benedikt Herbert, Ana-Maria Krause, Frank Wuerthner
Summary: The deracemization process of a racemic mixture of chiral molecules into enantioenriched compounds is achieved by an inherently chiral perylene bisimide cyclophane, which can transform [5]-helicene into an enantioenriched mixture with a high enantiomeric excess. The macrocyclic supramolecular host shows strong and enantioselective binding towards homochiral carbohelicenes, suggesting potential applications in template-catalyzed deracemization processes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Chuan Xiang Alvin Tan, Rui Li, Fuhao Zhang, Lei Dai, Nisar Ullah, Yixin Lu
Summary: A sequential phosphine-catalyzed asymmetric [3+2] annulation of aldimines has been developed, utilizing an oxidative central-to-axial chirality transfer strategy. This approach is operationally simple and allows for the rapid synthesis of highly enantioselective 2-arylpyrroles.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
