Article
Chemistry, Multidisciplinary
Jian-Cai Liu, Jie-Fei Wang, Qing Han, Ping Shangguan, Lu-Lu Liu, Li-Juan Chen, Jun-Wei Zhao, Carsten Streb, Yu-Fei Song
Summary: The study demonstrates how the aggregation of giant molecular metal oxide superstructures can be driven using organotin and lanthanide cations, with detailed structural analysis. Initial biomedical tests show inhibitory effects of the compound on cancer cell proliferation, indicating potential applications in cancer treatment.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Xin Han, Chenxing Guo, Chen Xu, Linlin Shi, Binghui Liu, Zhe Zhang, Qixia Bai, Bo Song, Fangfang Pan, Shuai Lu, Xinju Zhu, Heng Wang, Xin-Qi Hao, Mao-Ping Song, Xiaopeng Li
Summary: We have successfully designed and synthesized two series of metallo-supramolecular octahedral cages based on the self-assembly of modified tripyridyl ligands. These cages have good water solubility and are capable of mediating visible-light-promoted reactions.
Article
Chemistry, Multidisciplinary
Cristian Cavedon, Sebastian Gisbertz, Susanne Reischauer, Sarah Vogl, Eric Sperlich, John H. Burke, Rachel F. Wallick, Stefanie Schrottke, Wei-Hsin Hsu, Lucia Anghileri, Yannik Pfeifer, Noah Richter, Christian Teutloff, Henrike Mueller-Werkmeister, Dario Cambie, Peter H. Seeberger, Josh Vura-Weis, Renske M. van der Veen, Arne Thomas, Bartholomaus Pieber
Summary: We demonstrate visible-light-mediated carbon-heteroatom cross-coupling reactions using a photoactive Ni(II) precatalyst. The activation of this precatalyst involves an initial intraligand charge transfer event triggered by visible light irradiation. Additionally, a porous, recyclable organic polymer for heterogeneous nickel catalysis of cross-coupling reactions is obtained through ligand polymerization.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Keigo Tashiro, Takuho Saito, Hironari Arima, Natsuki Suda, Balaraman Vedhanarayanan, Shiki Yagai
Summary: Chemists have constructed sophisticated artificial nanostructured systems through self-assembly, including scissor-shaped photochromic dyads that hierarchically self-assemble into discrete nanostructures with photoresponsive properties. These nanostructures, such as azobenzene dyads, can be dissociated and reorganized through the photoisomerization of azobenzene units, enabling controllable and adjustable structures.
Article
Chemistry, Multidisciplinary
Hong Zeng, Peiren Liu, Hao Xing, Feihe Huang
Summary: Due to the highly symmetrical structures, partial functionalization of macrocycles is usually low-yielding and difficult to purify. In this study, a two-step fragment coupling method was developed to synthesize tetra-functionalized pillar[6]arenes, referred to as X-pillar[6]arenes. This method is simple and versatile and allows for hetero-fragment coupling and pre-functionalization.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Ikuya Matsumoto, Ryo Sekiya, Takeharu Haino
Summary: By decorating nanographenes with alkyl chains and controlling concentration, solvent polarity, temperature, and sonication, it is possible to achieve self-assembly and formation of stacked structures. Optical measurements and AFM images confirm the presence of stacked structures, while molecular mechanics calculations model the interactions within the aggregates. The nanographenes exhibit concentration-dependent morphologies, forming stacked structures at low concentrations and polymer-like network structures at higher concentrations on mica.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Inorganic & Nuclear
Reike Clauss, Evamarie Hey-Hawkins
Summary: The reaction of heteroditopic ligand 1 with [Pd(CH3CN)(4)](OTf)(2) in different metal-to-ligand ratios produced homobimetallic, metallomacrocyclic, and monometallic complexes. The ligand's different hard and soft binding sites showed selective coordination with Pd-II and Zn-II.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Dan-Ni Yan, Li-Xuan Cai, Shao-Jun Hu, Yan-Fang Zhou, Li-Peng Zhou, Qing-Fu Sun
Summary: The adaptive self-assembly and host-guest catalysis of a new water-soluble organo-palladium host are reported. The host undergoes conformational changes upon guest binding, allowing for efficient and selective catalysis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Sylvain Sudan, Farzaneh Fadaei-Tirani, Rosario Scopelliti, Kristina E. Ebbert, Guido H. Clever, Kay Severin
Summary: Thirteen palladium-ligand assemblies with different structures and topologies were studied for their ability to bind lithium ions. It was found that the addition of LiBF4 caused a significant structural rearrangement in one case, converting a dinuclear [Pd2L4](4+) complex into a low-symmetry [Pd4L8](8+) assembly with two binding pockets for solvated LiBF4 ion pairs. This rearrangement was only induced by Li+, indicating highly specific host-guest interactions. Structural analysis revealed that the [Pd4L8](8+) receptor had a compact structure with multiple intramolecular interactions, similar to natural and synthetic foldamers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Zongshang Li, Ke Xiao, Qingyun Wan, Rui Tang, Kam-Hung Low, Xiaodong Cui, Chi-Ming Che
Summary: The introduction of multiple kinetic aggregation states (Aggs) into the self-assembly pathway can increase the complexity and flexibility of the self-assemblies. This was achieved by using a series of chiral and achiral d(10) Au-I bis(N-heterocyclic carbene, NHC) complexes, where the achiral complex could undergo self-assembly with multiple kinetic Aggs. The chiral Au-I self-assemblies exhibited nonlinear optical response of second harmonic generation (SHG) and could function as optical waveguides with strong emission polarization, while these properties were absent in the achiral analogue.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Qian Zhang, Cuiling Lin, Chen Chen, Liqun Zhang, Feng Shi, Mengjiao Cheng
Summary: This study demonstrates the molecular-conformation-dependent macroscopic supramolecular self-assembly (MSA) driven by electrostatic interactions. Evidence from single molecular force spectroscopy shows that the modified polyelectrolytes on MSA component surfaces enable MSA with a loop conformation, while those with a flat conformation prevent assembly, due to distinct molecular mobility. This finding is believed to be applicable in fundamental phenomena such as surface adsorption and adhesion of polymers.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Daniel Hugenbusch, Marc Lehr, Jan-Simon von Glasenapp, Anna J. McConnell, Rainer Herges
Summary: We report the photo-switching properties of two regioisomeric diazocine ligands. The self-assembly of these ligands with Co-II ions was studied, and reversible transformation between different ligand configurations and Co-II complexes was achieved through light-controlled switching.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Ayan Bhattacharyya, Suman De Sarkar, Anindita Das
Summary: Visible-light-mediated photoredox catalysis has been developed as an efficient alternative to conventional organic synthesis, with researchers now incorporating supramolecular chemistry techniques to customize traditional catalysts and expand their scope through noncovalent interactions. The use of supramolecular engineering has led to improved efficiency in known chemical reactions and the development of advanced synthetic methodologies. Additionally, self-assembly strategies within confined nanospaces have been shown to impact photocatalytic reactions.
Article
Chemistry, Multidisciplinary
Hong-Yu Lin, Le-Yong Zhou, Fang Mei, Wei-Tao Dou, Lianrui Hu, Hai-Bo Yang, Lin Xu
Summary: Developing a new strategy to improve the self-assembly efficiency and construct hybrid functional materials in a confined space is the focus of this study. A highly efficient strategy for achieving the supramolecular self-assembly of metallacages in microdroplets through continuous-flow microfluidic devices was proposed. The versatility and high efficiency of this approach were demonstrated by the generation of five representative metallacages in different solvents within minutes, with nearly quantitative yields. The study also explored the supramolecular catalysis in microdroplets, showing an enhanced catalytic yield compared to the batch reactor.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Mitsuaki Yamauchi, Seiya Yamamoto, Sadahiro Masuo
Summary: The study demonstrates a novel supramolecular coassembly system that forms highly ordered QD arrangement structures via self-assembly, enabling photocontrollable photoluminescence properties. The assembled system undergoes structural changes under light, but recovers its original structure and properties over time.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
