Article
Chemistry, Multidisciplinary
Dawid Marcinkowski, Maciej Kubicki, Violetta Patroniak, Tadeusz Muziol, Szymon Chorazy, Le Shi, Mikolaj Zychowicz, Anna M. Majcher-Fitas, Robert Podgajny, Adam Gorczynski
Summary: This study demonstrates for the first time how the triphenylmethane (trityl) group can be used in the field of molecular magnetic materials by shaping the properties of single molecule magnets (SMMs) within lanthanide complexes. Trityl-appended hydrazone ligands were synthesized and complexed with Dy(III) and Er(III) salts to generate monometallic and bimetallic complexes. The magnetic properties of these complexes were investigated, revealing the ability of ligand HL1 to induce SMM behavior in Dy(III) congeners.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Luca Conti, Liviana Mummolo, Giammarco Maria Romano, Claudia Giorgi, Gina Elena Giacomazzo, Luca Prodi, Andrea Bencini
Summary: A new Ru-II complex was synthesized and tested for its ability to bind BPA in water, demonstrating potential for optical sensing applications.
Article
Engineering, Chemical
Ji Pan, Hairong Zhu, Huixing Cao, Bowen Wang, Junliang Zhao, Zhe Sun, Feng Yan
Summary: This study synthesized AEMs with different cationic functional groups and found that AEMs with di-cations exhibit superior performance in terms of water uptake, swelling ratio, alkaline stability, and ionic conductivity compared to AEMs with mono-cations. Mathematical models were established for MD simulations, and the results obtained were in good qualitative agreement with experimental data, providing insight into the solvation, transport properties, and alkaline stability of AEMs.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Mohamed Haouas, Clement Falaise, Nathalie Leclerc, Sebastien Floquet, Emmanuel Cadot
Summary: This article provides a brief overview of recent examples of the contribution of nuclear magnetic resonance (NMR) to the characterization of hybrid systems in solution based on cyclodextrin with polynuclear clusters. The strength and nature of the interactions can be determined using 1H (and 13C) NMR of the host, while clustering phenomena can be highlighted using DOSY and spatial proximity can be evidenced using NOESY/ROESY. Other NMR nuclei can be utilized to probe the inorganic part as a guest molecule.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Yulian Pang, Atsushi Shiraishi, Dietmar Keil, Sergey Popov, Veronika Strehmel, Hongjun Jiao, Jochen S. Gutmann, Yingquan Zou, Bernd Strehmel
Summary: The NIR-sensitized cationic polymerization showed good efficiency with epoxides, vinyl ether, and oxetane, with vinyl ether being the most efficient. Different anions exhibited different reactivity, with anion d showing better reactivity. IPNs were formed in NIR-sensitized polymerization, while UV-LED initiation did not result in IPN formation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Atsuko Kuno, Goki Hirata, Hiroki Tanaka, Yoichi Kobayashi, Nobuhiro Yasuda, Hiromitsu Maeda
Summary: A series of anion-responsive pi-electronic molecules containing phenylpyridine ligands were synthesized in this study, showing phosphorescence emission with high quantum yields and solution-state anion binding. These molecules exhibited solid-state ion-pairing assemblies with various binding modes, influenced by the substituents and geometries/electronic states of their countercations.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Minsoo Lee, Hyukjin J. Kwon, Geunbae Lim
Summary: The novel multiscale-porous anion exchange membrane (MP-AEM) enables convenient and scalable electrokinetic concentration of cationic species by overcoming the intrinsic limitations of traditional AEM materials. The MP-AEM-embedded electrokinetic concentrator is fabricated in a highly simplified manner with only a simple insertion and assembly process. The concentration performance of the MP-AEM-embedded concentrator is demonstrated to enrich positively charged samples with enrichment factors of up to 500, making cationic electrokinetic concentration more accessible and scalable for various applications.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zheng Zhou, James McNeely, Joshua Greenough, Zheng Wei, Haixiang Han, Mathieu Rouzieres, Andrey Yu Rogachev, Rodolphe Clerac, Marina A. Petrukhina
Summary: The synthesis and characterization of a novel family of COT-based heterotrimetallic self-assemblies with unique structures and magnetic properties are reported.
Article
Chemistry, Inorganic & Nuclear
David Gomez de Segura, Elena Lalinde, M. Teresa Moreno
Summary: New cyclometalated PtII complexes with different picolinate ligands were synthesized, and the solid-state packing and photophysical properties were modulated through donor-acceptor H-bonding interactions and stacking interactions. Theoretical calculations and experimental studies revealed the influence of metal-metal contacts and chelate stacking on the charge transfer character.
INORGANIC CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Lukasz Polewski, Andreas Springer, Kevin Pagel, Christoph A. Schalley
Summary: Ion mobility spectrometry and gas-phase IR action spectroscopy are two popular structure-sensitive mass-spectrometric methods for investigating supramolecular assemblies. These methods can distinguish isomers, reveal subtle structural details, and study amino acid complexes and peptide assemblies.
ACCOUNTS OF CHEMICAL RESEARCH
(2021)
Article
Chemistry, Inorganic & Nuclear
David Gomez de Segura, Rebeca Lara, Monica Martinez-Junquera, Elena Lalinde, M. Teresa Moreno
Summary: This study presents the synthesis, structural characterization, and photophysical properties of cyclometalated Pt-II and Ir-III complexes with different functionalized phosphine ligands. The Pt complexes exhibit higher photoluminescence quantum yields in PS films compared to the Ir complexes and the precursor. The higher quantum yield of Pt complexes can be explained by the calculated energy gap between the metal-centered triplet and the ligand-centered triplet/metal-to-ligand charge transfer states.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Masaki Fujita, Yohei Haketa, Hiroki Tanaka, Nobuhiro Yasuda, Hiromitsu Maeda
Summary: Various counteranions were exchanged to prepare stable ion pairs with the thiaporphyrin-Ni-II complex as a pi-electronic cation. The ion-pairing assembling modes, influenced by the geometries and electronic states of the counteranions, involved both charge-by-charge and charge-segregated contributions.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Mohammadjavad Karimi, Elham S. Tabei, Remi Fayad, Mohamed R. Saber, Evgeny O. Danilov, Cameron Jones, Felix N. Castellano, Francois P. Gabbai
Summary: The study found that both isomeric complexes cleanly converted into the platinum germyl complex in the presence of a chlorine trap, with high quantum yields. The conversion of the Ge-IV-Pt-II isomer into the platinum germyl complex is a rare example of a light-induced transition-metal/main-group-element bond-forming process. Transient-absorption-spectroscopy studies on the Ge-III-Pt-III isomer suggest a ligand arene-Cl- charge-transfer complex as an intermediate.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Inorganic & Nuclear
Emmanuel Puig, Geoffrey Gontard, Marie Noelle Rager, Hani Amouri
Summary: The study demonstrates that optically active halogenated arenes can form major diastereomers with 90% de upon reaction with metal centers. Subsequent reactions can generate related enantiopure neutral metallothioligands, leading to the construction of chiral coordination assemblies. These complexes exhibit different molecular structures and chiralities.
INORGANICA CHIMICA ACTA
(2021)
Article
Chemistry, Inorganic & Nuclear
Latchupatula Radhakrishna, Basvaraj S. Kote, Harish S. Kunchur, Madhusudan K. Pandey, Dipanjan Mondal, Maravanji S. Balakrishna
Summary: This manuscript describes the syntheses of pyridine appended triazole-based mono- and bisphosphines and their palladium and platinum chemistry and catalytic applications. Different coordination modes were observed in the complexes depending on the reaction conditions, indicating the ambidentate nature of these ligands. The palladium complexes showed excellent catalytic activity in the alpha-alkylation reaction of acetophenone derivatives.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Ikuya Matsumoto, Ryo Sekiya, Hiroji Fukui, Ren-De Sun, Takeharu Haino
Summary: Nanographene is a promising candidate for organic electrochromic (EC) materials due to its large pi-conjugated system, chemical stability, and tunable optical properties. In this study, nanographene carrying redox-active triphenylamine units covalently linked to the edge exhibited EC behavior in the near-infrared (NIR) region. The absorption spectrum of the hybrid material changed upon one-electron oxidation and reduction at low potentials, extending to a wavelength of over 2000 nm.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Ryo Sekiya, Takeharu Haino
Summary: This article discusses the classification of substances into different dimensional species based on the number of repeating units and their arrangements in space, focusing on the underexplored 2D species category and the potential applications of NGs in this area.
Article
Engineering, Electrical & Electronic
Kojiro Naito, Yuhi Inada, Tsuneaki Sakurai, Masaki Shimizu, Takeshi Yamao
Summary: Large elongated single crystals of 1,6-dibromopyrene were successfully obtained via slow evaporation, showing high carrier mobility in field-effect transistors. The emission strength and mobility were found to be larger in the transverse intermolecular contact direction, with mobilities in the linear region being significantly higher after corrections for charge injection barriers. The study suggests that bromine substitution effectively modifies optical properties and improves solution processability of organic semiconductor materials while maintaining carrier mobility.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Shusaku Takahashi, Ryo Sekiya, Takeharu Haino
Summary: Utilizing graphitic domains on nanographenes for anchoring metal nanoparticles can enhance their catalytic applications. This study successfully prepared lipophilic nanographenes doped with metal nanoparticles and demonstrated their catalytic function.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Shigeyuki Yamada, Eiji Uto, Keigo Yoshida, Tsuneaki Sakurai, Tsutomu Konno
Summary: Fluorinated tolane dimers connected by relatively long alkylene tethers undergo a transition to a nematic liquid crystalline phase during cooling, exhibiting high photoluminescence efficiency. These findings suggest a promising route for the development of thermo-responsive photoluminescent liquid crystals and thermosensing applications of photoluminescent materials.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Editorial Material
Chemistry, Physical
Ryo Sekiya, Takeharu Haino
Article
Chemistry, Physical
Shusaku Takahashi, Ryo Sekiya, Takeharu Haino
Summary: This study conducted computational studies on hydrogen-terminated nanographenes (NGs) and found that edge oxidation and functionalization have little impact on the electronic structure. The study also demonstrated the contribution of pi-pi* transitions on the basal plane to visible light absorption and the role of distorted basal planes and steric contacts in increasing the solubility of edge-modified NGs.
Article
Chemistry, Multidisciplinary
Saki Arimura, Ikuya Matsumoto, Shohei Nishitani, Ryo Sekiya, Takeharu Haino
Summary: We enhanced the chirality of nanographenes (NGs) by chemically modifying them with pyrene and m-terphenyl groups through postsynthetic methods. The bulky substituents improved the circular dichroism (CD) signal and induced the opposite chirality than previously reported. Density functional theory calculations suggested that the interactions between neighboring substituents influenced the orientation and distortion of the NGs' edges, ultimately generating a chiral environment.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Chemistry, Physical
Shusaku Takahashi, Ryo Sekiya, Takeharu Haino
Summary: The effects of edge functionalization on the physical properties of nanographenes (NGs) were computationally studied, demonstrating that while the structures of the model NGs are not sensitive to edge functionalization, the magnetic and electronic properties are. Edge functionalization narrowed the H-L gap and induced a redshift of the photoluminescence band by promoting pi conjugation. The calculations further confirmed the contribution of charge transfer to the absorption spectra.
Article
Chemistry, Multidisciplinary
Haruka Moriguchi, Ryo Sekiya, Takeharu Haino
Summary: This study demonstrates that the self-assembly of nanographenes can be controlled by regulating solvent polarity. The nanographenes aggregate in 1,2-dichloroethane and form network polymeric structures at high concentration.
Article
Chemistry, Multidisciplinary
Kentaro Harada, Ryo Sekiya, Takeharu Haino
Summary: Cu and Ag capsules were found to have the ability to take up various organic molecules through partial dissociation and slippage, as revealed by CD and 1H NMR spectroscopy. The study also demonstrated that partial dissociation is the major molecular recognition process, while slippage can also contribute to host-guest complexation in certain cases.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Crystallography
Tsuneaki Sakurai, Kenichi Kato, Masaki Shimizu
Summary: The spontaneous formation of self-sorted columnar structures of electron-donating and accepting pi-conjugated molecules is achieved through the side-chain labeling approach. By carefully designing the side chains of discotic molecules, the unfavorable contact between hydrophobic and hydrophilic chains is avoided, enabling the preferential formation of columnar structures. This strategy has the potential to optimize the photoconducting and photovoltaic properties.
Article
Chemistry, Physical
Yusuke Tsutsui, Tsuneaki Sakurai, Shu Seki
Summary: Amplified spontaneous emission (ASE) is considered as a primary indication of optical gain without external resonator. Molecular materials with ASE are expected to be suitable light sources for specific applications. Molecular design can overcome concentration quenching and achieve excited state intramolecular proton transfer.
FARADAY DISCUSSIONS
(2023)
Article
Chemistry, Physical
Shigeyuki Yamada, Keigo Yoshida, Tsuneaki Sakurai, Mitsuo Hara, Tustome Konno
Summary: D-pi-A type 4-alkoxy-4'-cyanodiphenylacetylenes with a decyloxy chain exhibit a nematic liquid crystalline phase, while the introduction of a semifluoroalkyl fragment results in a switch to the smectic A phase. The D-pi-A type pi-conjugated mesogen displays photoluminescence in solution, crystalline phase, and molecular aggregated structure of the liquid crystalline phase.
MOLECULAR SYSTEMS DESIGN & ENGINEERING
(2022)
Review
Chemistry, Multidisciplinary
Masaki Shimizu, Tsuneaki Sakurai
Summary: This review covers organic small molecules and polymers that exhibit UV emission in the aggregated state and evaluates their potential as solid-state emitters based on their photoluminescence quantum yields and emission maxima.
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)
