Article
Multidisciplinary Sciences
M. Atzori, H. D. Ludowieg, A. Valentin-Perez, M. Cortijo, I Breslavetz, K. Paillot, P. Rosa, C. Train, J. Autschbach, E. A. Hillard, G. L. J. A. Rikken
Summary: Magnetochiral dichroism is a fascinating manifestation of the light-matter interaction for chiral systems under magnetic fields, reported for many materials. The interpretation of this phenomenon remains essentially phenomenological and qualitative, but good agreement between experiment and theory has been found through the incorporation of vibronic coupling.
Article
Multidisciplinary Sciences
Geert L. J. A. Rikken, Narcis Avarvari
Summary: The interplay between chirality and magnetism has been shown to affect the movement of bound charges in a chiral dielectric. This phenomenon, known as magnetochiral anisotropy, has applications in various systems and has been experimentally observed in chiral ferroelectrics, opening up new avenues for the study of chiral dielectrics.
NATURE COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Shoma Hirokawa, Nagao Kobayashi, Soji Shimizu
Summary: The study elaborates inherently chiral subporphyrins by forming a fused pyran ring at the periphery, showing that the chiroptical properties can be controlled by peripheral substitution and meso-aryl substituents. The circular dichroism (CD) properties of chiral subporphyrins are largely affected by the peripheral substituents and the dihedral angles between the meso-aryl substituents and the subporphyrin core.
Article
Physics, Multidisciplinary
Dongsheng Song, Rafal E. Dunin-Borkowski
Summary: This study presents a method for three-dimensional magnetic measurement at atomic scale using EMCD technology, which allows for obtaining signals related to magnetization in three Cartesian directions by using a subangstrom convergent electron beam in STEM. Atomic resolution EMCD signals from all three directions can be separately acquired by moving the detector, and signal enhancement can be achieved by using a defocused electron beam.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Physical
G. L. J. A. Rikken, N. Avarvari
Summary: The combination of chirality and magnetism has led to the research of electrical magnetochiral anisotropy (eMChA) and chirality-induced spin-selectivity (CISS). While there are similarities between these two effects, their symmetry properties differ. However, normalizing their magnitudes to current density and spin polarization suggests a common underlying mechanism.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Wouter Heyvaert, Adrian Pedrazo-Tardajos, Ajinkya Kadu, Nathalie Claes, Guillermo Gonzalez-Rubio, Luis M. Liz-Marzan, Wiebke Albrecht, Sara Bals
Summary: Chirality in inorganic nanoparticles and nanostructures has attracted increasing scientific interest due to their ability to interact differently with circularly polarized light. Quantifying the degree of chirality in objects of nanoscale is challenging, but the authors introduce a methodology based on helical geometrical properties to quantify the helicity of complex chiral nanomaterials. They demonstrate that analyzing individual particles can provide significant insights into the origin of chiroptical properties.
ACS MATERIALS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Herman Duim, Maria Antonietta Loi
Summary: This article discusses the potential of chiral hybrid organic-inorganic metal halides (HMHs) in the field of optics, examining the impact of chiral transfer on electronic structure and optical properties. It further explores efforts to improve and tune the chiroptical response, while also proposing future research directions for enhancing chiral HMHs.
Article
Chemistry, Multidisciplinary
Zeyu Feng, Chenlu He, Yifan Xie, Chutian Zhang, Jiahe Li, Dingdong Liu, Zifan Jiang, Xin Chen, Gang Zou
Summary: Chiral metal nanostructures have recently gained attention due to their strong chiroptical properties and enhanced light-matter interactions. In this study, twisted-stacked silver nanowire arrays (TNAs) with independently controllable CD signals at interband transition and plasmonic extinction regions were constructed. These TNAs exhibited high sensitivity towards protein secondary structures, with different responses depending on the protein's beta-sheets or alpha-helices content. The mutually independent optical activities at the interband transition and plasmonic extinction regions complemented each other, providing enhanced sensitivity and reliability in chiral biosensing.
Article
Optics
Hiroyuki Kurosawa, Satoshi Tomita, Kei Sawada, Toshihiro Nakanishi, Tetsuya Ueda
Summary: A numerical study predicts and experimentally verifies that a metamolecule with magnetism and chirality exhibits a giant magnetochiral (MCh) effect at microwave frequencies, which is of significant importance for practical applications.
Article
Chemistry, Multidisciplinary
Liang Yan, Manoj K. Jana, Peter C. Sercel, David B. Mitzi, Wei You
Summary: The study presents a new type of 2D hybrid perovskites with a unique combination of chirality and alkyl-aryl functionality, determined by noncovalent intermolecular interactions in their crystal structures. The mixed-cation perovskites exhibit a circular dichroism distinct from purely chiral cation analogues, providing a new avenue for tuning the chiroptical properties of known chiral perovskites. Mixing chiral cations with achiral cations may offer a potential way to tailor the spin-based properties in 2D hybrid perovskites.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Mengjia Cen, Jiawei Wang, Jianxun Liu, Huilin He, Ke Li, Wenfeng Cai, Tun Cao, Yan Jun Liu
Summary: A new type of self-aligned suspended chiral bilayer metasurface is demonstrated, which can exhibit significant optical chirality and label-free discrimination of chiral molecules at zeptomole level, with higher sensitivity compared to conventional circular dichroism spectroscopy.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jinyi Dong, Yihao Zhou, Jiahao Pan, Chao Zhou, Qiangbin Wang
Summary: In this study, gold nanobipyramids (AuNBPs) were assembled into static and dynamic chiral plasmonic nanostructures using DNA origami. Compared to conventional chiral dimers of gold nanorods (AuNRs), AuNBP dimers exhibited more intriguing chiroptical responses, suggesting they could be a superior alternative for constructing chiral plasmonic nanostructures for biosensing.
CHEMICAL COMMUNICATIONS
(2021)
Article
Optics
Yijing Chen, Zheng Yang, Liuli Wang, Wen Dong, Zhuo Chen
Summary: We studied the chiroptical responses of hybrid systems consisting of metal-insulator-metal (MIM) gammadion arrays on a dielectric slab waveguide. Our results showed that both transverse magnetic (TM) and transverse electric (TE) waveguide modes could couple to the antisymmetric localized surface plasmon resonances (LSPRs) of the MIM-gammadions, resulting in the formation of narrow hybrid waveguide-plasmon resonances (WPRs). The TE-WPRs exhibited strong circular dichroism (CD) peaks that could be easily tuned over a wide spectral range by adjusting the lattice period or slab waveguide thickness.
Article
Chemistry, Multidisciplinary
Natalie Fehn, Melanie Strauss, Christian Jandl, Markus Drees, Ueli Heiz, Klaus Koehler, Aras Kartouzian
Summary: In this work, the transfer of chirality between a chiral metal-organic catalyst and a substrate was investigated through induced circular dichroism (ICD) studies on [Pd(Me)(2)(BINAP)]. The catalyst was successfully synthesized and characterized using single-crystal X-ray diffraction and CD spectroscopy, in addition to density functional theory calculations. It was demonstrated that BINAP not only acted as a steric guide during catalysis, but also influenced the electronic properties of the Pd center through ICD.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Optics
N. Apurv Chaitanya, M. A. T. Butt, O. Reshef, Robert W. Boyd, P. Banzer, Israel De Leon
Summary: Asymmetric transmission in chiral plasmonic metasurfaces can be achieved by controlling the scattering of plasmonic nanoparticles. This effect is caused by an unbalanced excitation of lattice modes by circularly polarized light of opposite handedness. Only nonzero diffraction orders contribute to this effect.
Review
Chemistry, Multidisciplinary
Athanasios G. Athanassiadis, Zhichao Ma, Nicolas Moreno-Gomez, Kai Melde, Eunjin Choi, Rahul Goyal, Peer Fischer
Summary: Smart materials can utilize ultrasound to control and initiate physical and chemical systems with high specificity. The emerging techniques in this field offer great potential for the development of smart capabilities supported by ultrasound, while also raising interesting questions for further research.
Article
Chemistry, Inorganic & Nuclear
Nikolia Lalioti, Vassilis Nastopoulos, Nikos Panagiotou, Anastasios Tasiopoulos, Nikolaos Ioannidis, Joris van Slageren, Peng Zhang, Gopalan Rajaraman, Abinash Swain, Vassilis Tangoulis
Summary: The reaction between Dy(O2CMe)(3)•4H(2)O and 1-acetyl-2-napthol (LH) in MeOH yielded the complex [Dy2L6(MeOH)]•MeOH (1•MeOH) with good success. Characterization was done through single-crystal X-ray crystallography, elemental analyses, IR spectra, and powder X-ray patterns. The complex showed slow magnetic relaxation with a single relaxation mechanism under a 0 Oe dc field and two relaxation processes under a 1500 G external magnetic field.
DALTON TRANSACTIONS
(2022)
Review
Chemistry, Multidisciplinary
Jang-Hwan Han, Doeun Kim, Juhwan Kim, Gyurin Kim, Peer Fischer, Hyeon-Ho Jeong
Summary: Physical shadow growth is a vacuum deposition technique that allows the fabrication of various 3D-shaped nanoparticles and structures using a wide range of materials. Recent advancements in controlling the shadow effect at the nanoscale has expanded the capabilities of nanomaterials to include complex 3D-shaped hybrid nanoparticles and structures. By engineering the shape and material composition, plasmonically active nanomaterials with unique physical and chemical properties can be created. This review discusses the recent progress in the development of shadow growth techniques for hybrid plasmonic nanomaterials, describing how fabrication enables engineered material responses and highlighting novel functions. Potential applications in photonic devices, biomedicine, and chiral spectroscopy are also discussed.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Jasmin Omar, Daniel Ponsford, Cecile A. Dreiss, Tung-Chun Lee, Xian Jun Loh
Summary: This article provides a detailed overview of the dynamic chemistry and design strategies behind supramolecular hydrogel formation, as well as the potential applications in the field of medicine and the considerations for further development.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Marc Schnierle, Mario Winkler, Vasileios Filippou, Joris van Slageren, Mark R. Ringenberg
Summary: The electrochemistry and spectroelectrochemistry of three [ReCl(CO)(3)(N N)] complexes were investigated with N N=3-(pyrid-2-yl)-1,2,4,5-tetrazine [1], 3-(pyrid-2-yl)-4-ferrocenyl-4,5-dihydropyridazine [1H(2)Fc], and 3-(pyrid-2-yl)-4-ferrocenyl-pyridazine [1Fc]. The conjugation of the ligands was found to affect the reduction potentials and intramolecular charge transfers observed in the UV-vis-NIR spectrum, with support from DFT calculations.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Hannes S. Funk, Michal Kern, David Weisshaupt, Christoph Suergers, Inga A. Fischer, Michael Oehme, Joris van Slageren, Joerg Schulze
Summary: This study investigates the structure and magnetic properties of Mn-based ferromagnetic layers on the semiconductor SixGe1-x-ySny with different Sn content compared to layers on Ge and Si0.75Ge0.25. The samples exhibit phase separation into Si-rich and Ge-rich Mn compounds, with all samples being ferromagnetic. Saturation magnetization decreases and coercive field increases with higher Si content x. The Curie temperature does not show a clear trend with increasing Si content. Based on composition, structure, and magnetic properties, a two-layer model is proposed to explain the observed magnetic behavior with Si content playing a key role.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
X. Garcia-Santiago, M. Hammerschmidt, J. Sachs, S. Burger, H. Kwon, M. Knoeller, T. Arens, P. Fischer, I Fernandez-Corbaton, C. Rockstuhl
Summary: Designing objects with predefined optical properties is crucial for nanophotonics. This article proposes a method to measure electromagnetic chirality and optimize the shape of silver helices to maximize it. Theoretical designs achieve high electromagnetic chirality at specific frequencies, but performance decreases in the optical band.
Letter
Chemistry, Multidisciplinary
Jan-Philipp Guenther, Lucy L. Fillbrook, Guenter Majer, Daniel J. O'Leary, William S. Price, Hal Van Ryswyk, Peer Fischer, Jonathon E. Beves
Article
Chemistry, Multidisciplinary
Lorenzo Tesi, Friedrich Stemmler, Mario Winkler, Sherri S. Y. Liu, Saunak Das, Xiuming Sun, Michael Zharnikov, Sabine Ludwigs, Joris van Slageren
Summary: The development of quantum technologies aims to achieve exponentially faster computations, ultrahigh performance sensing, and a comprehensive understanding of many-particle quantum systems. Molecular spins have emerged as excellent candidates for qubits due to their long coherence times, tunability through chemical synthesis, and compatibility with other quantum platforms. However, integrating molecular spin qubits into quantum devices and preserving their quantum properties on surfaces remains a challenge. This study presents a versatile bottom-up approach to arrange molecular qubits as self-assembled monolayers on surfaces, demonstrating the maintenance or even enhancement of qubit properties.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Dennis Schaefter, Jonathan Wischnat, Lorenzo Tesi, J. Alejandro De Sousa, Edmund Little, Jake McGuire, Marta Mas-Torrent, Concepcio Rovira, Jaume Veciana, Floriana Tuna, Nuria Crivillers, Joris van Slageren
Summary: In this article, the spin dynamics of chlorinated triphenylmethyl organic radicals were investigated, revealing long ensemble coherence times and the achievement of two-qubit and individual qubit addressability in the biradical system. These results highlight the potential of molecular materials in the development of quantum architectures.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Patricia S. Ferreira, Jose F. Malta, Nuno A. G. Bandeira, Alexander Allgaier, Joris van Slageren, Jose A. Paixao, Manuel Almeida, Laura C. J. Pereira, Pedro T. Gomes
Summary: A new homoleptic Co(ii) complex with two highly sterically congested 2-formiminopyrrolyl N,N'-chelating ligands is reported, showing slow relaxation of magnetization at zero static field. This compound has a large zero-field splitting parameter D of -42.6(4) cm(-1), resulting in a spin-reversal energy barrier U-eff of 85 cm(-1).
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Patricia S. Ferreira, Ana C. Cerdeira, Tiago F. C. Cruz, Nuno A. G. Bandeira, David Hunger, Alexander Allgaier, Joris van Slageren, Manuel Almeida, Laura C. J. Pereira, Pedro T. Gomes
Summary: In this study, the authors characterized the structure and magnetic properties of four distorted tetrahedral homoleptic Co(II) complexes. These complexes exhibit Single-Ion Magnet (SIM) behavior, with large and negative magnetic anisotropy. Theoretical calculations showed that the axial anisotropy is mainly caused by electronic transitions, and the structural distortion was also explained and reproduced by calculations.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Mario Grosch, Martin T. Stiebritz, Robert Bolney, Mario Winkler, Eric Jueckstock, Hannah Busch, Sophia Peters, Alexander F. Siegle, Joris van Slageren, Markus Ribbe, Yilin Hu, Oliver Trapp, Christian Robl, Wolfgang Weigand
Summary: This study provides evidence for mackinawite-supported reduction of KCN and proposes a reaction mechanism. The findings open new avenues for investigating other substrates for mackinawite-supported reactions and shed light on the relevance of this type of reaction to the origin of life on Earth.
Article
Chemistry, Multidisciplinary
Ivana Borilovic, Olivier Roubeau, Boris Le Guennic, Joris van Slageren, Samuel Lenz, Simon J. Teat, Guillem Aromi
Summary: An asymmetric bis-phenol-beta-diketone (H4L) has been designed as a ligand that promotes the assembly of three magnetically exchanged [NiCu] pairs, each exhibiting an S = 1/2 spin. EPR and magnetometry measurements show that these pairs are good qubit realizations and non-equivalent within the molecule in the solid state, meeting the requirements for conditional quantum gates.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Benjamin Wittwer, Nicole Dickmann, Stephan Berg, Daniel Leitner, Lorenzo Tesi, David Hunger, Raphael Gratzl, Joris van Slageren, Nicolas Neuman, Dominik Munz, Stephan Hohloch
Summary: This study elucidates the electronic structure of a rare manganese complex formed by the reaction between a carbazole-based mesoionic carbene ligand and manganese(ii) iodide using a combination of chemical, spectroscopic, magnetic, and computational techniques.
CHEMICAL COMMUNICATIONS
(2022)
