Article
Chemistry, Multidisciplinary
Celine Pichon, Nicolas Suaud, Valentin Jubault, Carine Duhayon, Nathalie Guihery, Jean-Pascal Sutter
Summary: Trinuclear metal complexes were synthesized to investigate their influence on the magnetic anisotropy of Fe-II derivatives and their Single-Molecule Magnet behaviors, revealing a significant effect of the bending of M-N to C linkages on the slow relaxation of magnetization in [Cr2Fe] complexes. Theoretical calculations emphasized the importance of apical C-N-Fe linkages on the magnetic anisotropy and exchange interactions in these complexes.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Arpan Mondal, Sanjit Konar
Summary: The study for the first time observed the importance of equatorial crystal fields on the magnetic anisotropy of ytterbium single molecule magnets. Analysis of three similar dinuclear ytterbium complexes revealed weak antiferromagnetic interactions and field-induced slow relaxation of magnetization. Complex 1 showed a higher energy barrier for spin reversal and a remarkable energy barrier within a specific frequency range.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Sourav Dey, Gopalan Rajaraman, Helene Bolvin
Summary: The SMM compound [{Mn(TPA)I}{UO2(Mesaldien)}{Mn(TPA)I}]I has been fully characterized and its spin Hamiltonian parameters extracted using ab initio CAS and DFT methods. The study reveals that the signs of magnetic coupling and g-factors are interconnected, with the central magnetic unit [(UO2)-O-V]+ described by a Kramers Doublet with negative g-factors. Furthermore, the study suggests that the spin polarization on the U(V) center favors ferromagnetic coupling and that the J(Z)/J(perpendicular to) ratio, related to the barrier height, can be estimated from the corresponding g(S)-values.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Peng-Bo Jin, Ke-Xin Yu, Yuan-Qi Zhai, Qian-Cheng Luo, Yi-Dian Wang, Xu-Feng Zhang, Yi Lv, Yan-Zhen Zheng
Summary: Two dysprosium(III) complexes have been confirmed as single-molecule magnets, with the dimer showing enhanced magnetic relaxation barrier. Dilution experiments with the yttrium(III) analogue indicate the single-ion nature of the magnetic behavior.
CHINESE JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Applied
Soumalya Roy, Pooja Shukla, Raman Kumar, Subash Chandra Sahoo, Tapan K. Pal, Amit Rajput, Julia Klak, Masahiko Hada, Kuduva R. Vignesh, Sourav Das
Summary: A series of dimetallic Zn-II-Ln(III) compounds were successfully prepared, and the single crystal XRD analysis revealed the connection between metallic ions through the phenolic oxygen atom of ligands. Magnetic studies showed the existence of antiferromagnetic interaction between Zn-II and Ln(III) metal centers.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Gao-Peng Li, Hong-Fang Xie, Shi-Rui Yang, Yun-Long Fu, Yi-Quan Zhang, Yao-Yu Wang
Summary: The study investigates the control of intramolecular magnetic interactions and relaxation dynamics by introducing two structurally related heterometal SMMs. It is found that changing the coordination geometries significantly affects the magnetic interactions and single-ion anisotropy.
CHINESE JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Giang Truong Nguyen, Liviu Ungur
Summary: This article presents a theoretical investigation of a series of N23- -radical-bridged diterbium complexes. The study reveals that while promoting strong exchange coupling between the terbium ions, the N23- -radical induces a crystal field that interferes destructively with that of the outer ligands, thereby reducing the overall SMM behavior. Based on the theoretical results, it is concluded that the SMM behavior in this series could be further maximized if the crystal field of the outer ligands is designed to be collinear with that of the radical bridge. This conclusion can be generalized to all exchange-coupled SMMs.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Qian-Cheng Luo, Ke-Xin Yu, Peng-Bo Jin, Ye-Ye Liu, Yuan-Qi Zhai, Yan-Zhen Zheng
Summary: A dimeric dysprosium guanidinate complex with dihydride bridge was successfully isolated and compared to its dibromide-bridged analogue. The introduction of hydride bridge significantly reduces the distance between Dy(III) ions, but has a weaker effect on magnetism compared to the bromide bridge.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Chen Wang, Yin-Shan Meng, Shang-Da Jiang, Bing-Wu Wang, Song Gao
Summary: Single-molecule magnets (SMMs) with slow magnetization relaxation and purely molecular hysteresis are promising for information storage, spintronics, and quantum computing. Improving the blocking temperature (T-B) and effective relaxation barrier (U-eff) is crucial for their application. Multidisciplinary research has achieved SMMs with a U-eff up to 2,000 K and a T-B in the liquid nitrogen region. Enhancing the uniaxiality of magnetic anisotropy is critical for high-performance SMMs.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Physics, Multidisciplinary
Yue Hu, Shiming Yan, Deyou Jin, Wen Qiao, Ru Bai, Tiejun Zhou
Summary: The Ki of Fe/MgO, Fe/Pt/MgO, and Fe/Ir/MgO heterostructures with strains from -4.5% to 4.5% were calculated in this study. It was found that the Fe/Pt/MgO and Fe/Ir/MgO exhibited much larger Ki values (2.415 mJ m(-2) and -4.468 mJ m(-2)) compared to Fe/MgO (0.840 mJ m(-2)). Strain can significantly manipulate the magnetic anisotropy of these structures. The origin of these behaviors was analyzed through layer-resolved, orbital-resolved, and k-resolved Ki calculations.
Article
Chemistry, Inorganic & Nuclear
Khetpakorn Chakarawet, Mihail Atanasov, John E. Ellis, Wayne W. Lukens, Victor G. Young, Ruchira Chatterjee, Frank Neese, Jeffrey R. Long
Summary: The spin-vibronic coupling in paramagnetic molecules can lead to spin relaxation, which is detrimental to long spin lifetime. The increase in spin relaxation rate from vanadium to niobium to tantalum was experimentally observed in the isoelectronic and isostructural series of homoleptic zerovalent transition metal triad M(CNDipp)(6). Correlated electronic calculations and first principle spin-phonon computations provide support for the role of spin-orbit coupling in modulating spin-phonon relaxation.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
James P. Durrant, Benjamin M. Day, Jinkui Tang, Akseli Mansikkamaki, Richard A. Layfield
Summary: Replacing the ligands in dysprosium single-molecule magnets with a different type leads to larger energy barriers to magnetization reversal. The distances between the ligands in the new complexes suggest a different crystal field splitting. Theoretical analysis shows that the magnetic axes in the ground Kramers doublets are oriented towards the new ligands. Introducing new parameters allows for comparisons between different single-molecule magnets, indicating the potential for improved performance in the new system.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Qian-Cheng Luo, Ning Ge, Yuan-Qi Zhai, Tengbo Wang, Lin Sun, Qi Sun, Fanni Li, Zhendong Fu, Yan-Zhen Zheng
Summary: Two erbium(III) complexes, [ErCl(OArAd)3][Na(THF)6] (1) and Er(OArAd)3 (2), were prepared using a hard base ligand with large steric hindrance. The change in coordination geometry around the Er(III) site from distorted tetrahedral to flat trigonal pyramid geometry in different solvent environments enhanced the single-molecule magnet (SMM) behavior, with a field-induced effective energy barrier (Ueff) of 43(1) cm -1 for the latter. The study demonstrates the importance of a strong equatorial ligand field and high local symmetry in suppressing quantum tunneling of the magnetization (QTM) to achieve high-performance erbium(III)-based SMMs.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Physical
Pablo Roseiro, Nadia Ben Amor, Vincent Robert
Summary: The spin states of a Co(II) oxoverdazyl compound are investigated in this study. The results show a mixture of low-spin and high-spin states, which is influenced by the structure of the coordination sphere. This finding has significant implications for molecular magnetism.
Article
Chemistry, Physical
Tilmann Bodenstein, Andreas Heimermann, Karin Fink, Christoph van Wuellen
Summary: The spin-orbit configuration interaction program presented in this study is tailored for describing the magnetic properties of polynuclear metal complexes with partially filled d- and f-shells. It uses spin-orbit operators directly within a configuration interaction program based on Slater determinants, allowing for efficient calculation of magnetic parameters and temperature-dependent properties. This program demonstrates fast convergence and high efficiency in analyzing the magnetic behavior of transition metal complexes.
Article
Chemistry, Physical
Zhen Li, Rosario Nunez, Mark E. Light, Eliseo Ruiz, Francesc Teixidor, Clara Vinas, Daniel Ruiz-Molina, Claudio Roscini, Jose Giner Planas
Summary: In this study, we design and synthesize a series of water-stable and temperature-stable mCB-EuyTb1-y MOFs and report the tunable emission, energy transfer, and time-dependent emission of these materials. The quantum yield is significantly increased and the lifetime luminescence is enhanced and tunable, achieved by a highly effective energy transfer process. The time-dependent emission and high quantum yield provide a simple method for designing high-security anticounterfeiting materials.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Franz A. . Mautner, Florian Bierbaumer, Roland C. Fischer, Annia Tubau, Saskia Speed, Eliseo Ruiz, Salah S. Massoud, Ramon Vicente, Silvia Gomez-Coca
Summary: Four novel Ce-III mononuclear complexes with different coordination numbers have been synthesized and characterized. Magnetic measurements and analysis reveal their field-induced single-ion magnet behavior and different spin relaxation mechanisms. Multiconfigurational calculations provide additional information on the axiality of the compounds.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Julio Corredoira-Vazquez, Cristina Gonzalez-Barreira, Matilde Fondo, Ana M. Garcia-Deibe, Jesus Sanmartin-Matalobos, Silvia Gomez-Coca, Eliseo Ruiz, Enrique Colacio
Summary: A new synthetic method has been developed to isolate a series of fluoride-bridged complexes, which exhibit interesting magnetic properties and provide theoretical insights into the structure-magnetism relationship for this type of compounds.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Yolimar Gil, Raquel Gimeno-Munoz, Ricardo Costa de Santana, Nuria Aliaga-Alcalde, Pablo Fuentealba, Daniel Aravena, Arantzazu Gonzalez-Campo, Evgenia Spodine
Summary: In this study, two mononuclear DyIII complexes were immobilized on functionalized silicon-based surfaces using microcontact printing technique, allowing control over the position of the molecules on the surface. The successful functionalization of the surfaces was confirmed through various measurements, and the optical properties of the compounds were investigated. The results showed that the immobilized complexes emitted deep blue and white light at room temperature, while retaining their bulk emissive properties.
INORGANIC CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Veacheslav Vieru, Silvia Gomez-Coca, Eliseo Ruiz, Liviu F. Chibotaru
Summary: This review discusses the synthesis methods of single-molecule magnets (SMMs) and the basic factors affecting their performance, as well as the strategies for further enhancing SMM performance. Practical approaches for designing SMMs for memory devices are also presented.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Physics, Multidisciplinary
Katy Aruachan, Yamil J. Colon, Daniel Aravena, Felipe Herrera
Summary: Understanding the physical processes that determine the relaxation and dephasing times of molecular spin qubits is crucial for their applications in quantum metrology and information processing. Recent spin-echo measurements in solid-state molecular spin qubits have led to the development of quantum mechanical models for predicting qubit timescales. In this study, a semi-empirical approach is used to construct Redfield quantum master equations for molecular spin qubits, taking into account the effects of spin-lattice interaction and interactions with lattice spins. The model is validated using two vanadium-based spin qubits, and it demonstrates good agreement with experimental data over a wide range of conditions. The model's ability to describe the temperature dependence of the T2/T1 ratio is discussed, and potential applications for designing molecule-based quantum magnetometers are suggested.
NEW JOURNAL OF PHYSICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Raul Diaz-Torres, Silvia Gomez-Coca, Eliseo Ruiz, Phimphaka Harding, David J. Harding
Summary: A family of heteroleptic spin crossover (SCO) complexes have been synthesized, and their spin transition properties vary with temperature. The magnetic properties of these complexes are significantly improved by slight changes in crystal packing, which enhance the cooperativity.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Piero Ferrari, Silvia Gomez-Coca
Summary: This study reveals the failure of density functional theory in predicting the magnetism of transition metal clusters and provides a theoretical framework for investigating other transition metal and transition metal oxide clusters.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Inorganic & Nuclear
Raul Diaz-Torres, Theerapoom Boonprab, Silvia Gomez-Coca, Eliseo Ruiz, Guillaume Chastanet, Phimphaka Harding, David J. Harding
Summary: This study explores the alcohol effects in a series of iron(III) spin crossover complexes. The results show that even small changes in the solvent can dramatically influence the crystal packing and therefore the spin crossover properties.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Inorganic & Nuclear
Shuting Liu, Yolimar Gil, Chen Zhao, Jinjiang Wu, Zhenhua Zhu, Xiao-Lei Li, Daniel Aravena, Jinkui Tang
Summary: This study synthesized two new belt macrocycle complexes through self-condensation reaction and other steps, and conducted magnetic measurements on them. The experimental results indicate that these complexes exhibit typical single-molecule magnet behavior.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Inorganic & Nuclear
Julio Corredoira-Vazquez, Cristina Gonzalez-Barreira, Matilde Fondo, Ana M. Garcia-Deibe, Jesus Sanmartin-Matalobos, Silvia Gomez-Coca, Eliseo Ruiz, Enrique Colacio
Summary: A new synthetic method has been developed to isolate dinuclear compounds with fluoride bridging, and the crystal structures and magnetic properties have been studied to explore the relationship between structure and properties.
INORGANIC CHEMISTRY
(2022)
Review
Chemistry, Inorganic & Nuclear
Pegah Hajivand, Johannes Carolus Jansen, Emilio Pardo, Donatella Armentano, Teresa F. Mastropietro, Amirreza Azadmehr
Summary: VOCs in human breath can be used as biomarkers for diseases, and MOFs have been extensively studied as gas sensors for VOCs. This review provides a comprehensive summary of the latest MOF-derived composites used as VOCs biomarkers' sensors, and discusses the structural and functional characteristics of MOFs, sensing properties, and the potential of bio-MOFs in VOCs sensing.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Seoyoon Song, Deborah Lee, Lucia C. Dalle Ore, Sungjun Kwak, Lifeng Kang, Hyung Kyo Kim, Noah Malmstadt, Sun Min Kim, Tae-Joon Jeon
Summary: This paper introduces the latest advancements in photoactivable liposomes in drug delivery, highlighting their advantages in precise control over drug release and targeted delivery, as well as the fine control over release kinetics achieved through the manipulation of light-responsive components. Additionally, the paper emphasizes the design considerations of physicochemical properties and light-related constituents.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Shudi Liu, Liangwei Zhang, Heejeong Kim, Jinyu Sun, Juyoung Yoon
Summary: Chromium is a strategic and critical transition metal element with extensive applications. Efficient detection methods, such as fluorescence and colorimetry, have been developed for monitoring its concentrations. However, existing reviews on fluorescent probes for chromium lack comprehensive coverage. This review aims to consolidate information and promote the development of novel fluorescent probes for chromium detection.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Rehab H. Elattar, Samah F. El-Malla, Amira H. Kamal, Fotouh R. Mansour
Summary: Metal complexes have strong analysis potential and can be used to measure analytes lacking essential chemical properties. Their analytical methods based on different mechanisms offer superior performance.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Nem Singh, Miae Won, Yunjie Xu, Changyu Yoon, Jiyoung Yoo, Mingle Li, Heemin Kang, Jong Seung Kim
Summary: Hypoxia is a common occurrence in the tumor microenvironment and poses challenges for cancer treatment. The introduction of covalent organic frameworks (COFs) offers promising prospects for addressing hypoxia-related issues. This article explores the role of COFs in enhancing oxygen delivery, generating reactive oxygen species, optimizing drug delivery, and enabling hypoxia-specific imaging, as well as outlining their applications in various hypoxia-targeting therapeutic modalities.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Priyadarshi Roy Chowdhury, Himani Medhi, Krishna G. Bhattacharyya, Chaudhery Mustansar Hussain
Summary: This review critically analyzes the production of waste-derived layered double hydroxides (LDH) and their utility in electrochemical water splitting for the generation of green hydrogen as sustainable energy. It highlights the importance of waste-derived LDH and discusses the challenges and future directions in this field.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Rajamanickam Sivakumar, Nae Yoon Lee
Summary: This article reviews the progress in imaging reactive oxygen, nitrogen, and sulfur species (RONSS) using luminescent metal complex-based probes. This technology is selective and sensitive, which is of great significance for studying the impact of RONSS in cells and tissues and preventing diseases.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Xinyang Li, Binbin Ding, Pan Zheng, Ping'an Ma, Jun Lin
Summary: The main goal of immunotherapy is to enhance the response and cytotoxicity of tumor-specific T cells by turning cold tumors into hot tumors. However, metabolic reprogramming in the tumor microenvironment can depress the cytotoxicity of T cells and hinder the effectiveness of immunotherapy. This review discusses the role of metabolic reprogramming in the interplay between cancer cells and immune cells in the tumor microenvironment and explores the use of nanomaterials to modulate metabolic pathways and improve immunotherapy outcomes.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Kingsley Poon, Abhishek Gupta, William S. Price, Hala Zreiqat, Gurvinder Singh
Summary: Progress in the development of manganese oxide nanoparticles (MONPs) has provided an alternative for early-stage diagnosis of life-threatening diseases and therapeutic delivery of drugs and genes. The synthesis and characterization of MONPs have enabled the production of multi-functional targeted nanoparticles in various sizes and shapes. The integration of diagnosis and therapeutic capabilities within a single entity, known as nanotheranostics, is promising for real-time monitoring of disease progression and evaluating therapeutic treatment efficacy.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Reza Abedi-Firoozjah, Hadiseh Ebdali, Mahya Soltani, Parastoo Abdolahi-Fard, Mahshid Heydari, Elham Assadpour, Maryam Azizi-Lalabadi, Fuyuan Zhang, Seid Mahdi Jafari
Summary: With the increasing awareness of food safety, there is a growing demand for efficient and affordable sensing methods for the detection of pathogens and toxins in food products. Nanosensors offer promising solutions with their quick and reliable detection capabilities, although challenges remain in their fabrication and practical application.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Demei Sun, Xuesong Feng, Xinyuan Zhu, Youfu Wang, Jinghui Yang
Summary: Metal organic cages (MOCs) with precise and tunable nano structures show great potential in cancer therapy. Their diverse functions and ultrasmall size make them excellent nanoagents for different anticancer strategies, demonstrating outstanding anticancer performances.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Li Li, Yang-Tao Yu, Ning-Ning Zhang, Shu-Hao Li, Jian-Ge Zeng, Yang Hua, Hong Zhang
Summary: This article summarizes recent advances in POM-based hybrid photochromic materials (PCHPMs), including structure types, new photochromic mechanisms, and applications. It can provide valuable guidance for researchers investigating POM-based hybrid photochromic materials.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Chien Ing Yeo, Clariss Hui Peng Goh, Edward R. T. Tiekink, Jactty Chew
Summary: This review article provides an overview of the antibacterial activity of gold complexes, with a focus on gold(I) and gold(III) complexes. It also summarizes the repurposing of Auranofin for antibacterial purposes and the associated mechanism(s) of action.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Sangharaj Diyali, Nilankar Diyali, Bhaskar Biswas
Summary: This study discusses the recent progress in the design and development of catalysts, focusing on the factors influencing overpotential, catalytic rate, and stability, as well as the mechanisms of the hydrogen evolution reaction in acidic and alkaline media. Moreover, it outlines the challenges in future design of robust and active electrocatalysts.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Shaik Gouse Peera, Rahul S. Menon, Sumanta Kumar Das, Akram Alfantazi, K. Karuppasamy, Chao Liu, Akhila Kumar Sahu
Summary: Doped carbon materials, especially F-doped carbon catalysts, have gained significant attention as metal-free catalysts for oxygen reduction reactions and as corrosion-resistant supports for Pt and non-Pt nanoparticles. F-doped carbon materials possess unique properties and greatly improve the activity and durability of the ORR compared to N-doped carbon materials. The high electronegativity of F-doping can efficiently modify the electronic band structure of carbon materials, favoring the ORR. This review systematically discusses the effect of F-doping/F co-doping on the electrocatalytic reduction of O2 in acidic and alkaline conditions, the stability and durability of fuel cell catalysts, and provides guidelines for working with F-doped carbons. Future research directions on F-doped carbons are also proposed to bridge the gap between laboratory-scale assessments and commercial applications.
COORDINATION CHEMISTRY REVIEWS
(2024)