Article
Chemistry, Inorganic & Nuclear
Jing Feng, Yu Zhang, Chuang Yang, Nan Wang, Fengwan Guo, Chi Zhang, Juan Wang
Summary: Two Keggin-type polyoxometalates-based rare-earth metal-organic networks were synthesized, exhibiting similar 2D layer structures; the incorporation of Keggin-anions was found to play an important role in the fast capture of cationic dye.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Hao Jia, Baipeng Yin, Jiaying Chen, Ye Zou, Hong Wang, Yu Zhang, Tongmei Ma, Qiang Shi, Jiannian Yao, Shuming Bai, Chuang Zhang
Summary: In this study, a single-crystalline framework material (Ln-MOF) is reported, which exhibits compass-like magnetic alignment under low magnetic fields. This magnetic alignment is attributed to the strong macroscopic anisotropy of Ln-MOF, where the highly-ordered structure allows the sum of molecular anisotropy of Ln-ions according to crystal symmetry. In tetragonal Ln-MOFs, the alignment can be either parallel or perpendicular to the field, depending on the easiest axis of molecular anisotropy. Reversible switching between the two alignments is realized by removing and re-adsorbing solvent molecules in the framework. When the crystal symmetry is lowered in monoclinic Ln-MOFs, the alignments become even inclined (47°-66°) to the field. These fascinating properties of Ln-MOFs would encourage further explorations of framework materials containing paramagnetic centers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yuan-Jun Tong, Lu-Dan Yu, Nan Li, Minhui Shen, Xiaoru Peng, Huangsheng Yang, Yu-Xin Ye, Fang Zhu, Janusz Pawliszyn, Jianqiao Xu, Gangfeng Ouyang
Summary: In this study, novel and highly luminescent suprastructures were synthesized via a two-step assembly method to incorporate LnCs in COFs. The obtained composites show high quantum yields and stable fluorescence performance under different pH conditions, demonstrating potential for sensing and light emitting applications.
Article
Chemistry, Multidisciplinary
Jian Su, Shuai Yuan, Jing Li, Hai-Ying Wang, Jing-Yuan Ge, Hannah F. Drake, Chanel F. Leong, Fei Yu, Deanna M. D'Alessandro, Mohamedally Kurmoo, Jing-Lin Zuo, Hong-Cai Zhou
Summary: In this study, stable and porous rare-earth metal-organic frameworks (RE-MOFs) were constructed using redox-active tetrathiafulvalene tetrabenzoate as the linker. The single-molecule magnets (SMMs) displayed slow relaxation and the property was modulated by oxidation and reduction reactions. The results highlight the advantage of MOFs in constructing redox-switchable SMMs.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Xiaomeng Shi, Bo Cao, Jinghai Liu, Jun Zhang, Yaping Du
Summary: The collaboration between rare-earth elements and metal-organic frameworks has brought new possibilities to the field of catalytic conversion, providing promising catalysts or supports for energy conversion, environmental governance, and organic synthesis. RE-MOFs as promising candidates for catalytic conversion have attracted considerable attention.
Article
Chemistry, Inorganic & Nuclear
Zhuanling Bai, Benjamin Scheibe, Joseph M. Sperling, Thomas E. Albrecht-Schoenzart
Summary: Selective crystallization provides new opportunities for separating neodymium and dysprosium. Two water-soluble nitrogen-rich tetrazolate-based ligands enable the separation of Nd3+ and Dy3+ through selective crystallization. The higher performance of H2ibt- compared to dtp2- provides guidance for the rational design of water-soluble tetrazolate-derived ligands for selective crystallization.
INORGANIC CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Seok J. J. Lee, Shane G. G. Telfer
Summary: Metal-organic frameworks (MOFs) consist of metal ions or clusters and organic linkers. Traditional MOFs are simple, composed of one type of joint and linker. However, this review demonstrates that frameworks with multiple components can be intentionally designed and synthesized, leading to exceptional functional properties at the atomic level when combined with structural order and periodicity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Shuyu Wang, Lijia Zhao, Hanxu Sun, Yuanyuan Wu, Ruidong Wang, Suoshu Zhang, Lin Du, Qi-Hua Zhao
Summary: Two rare earth-based metal-organic frameworks (La-III-based MOFs), Eu-ETTB and Gd-ETTB, were obtained by self-assembly and showed extremely high proton conductivity. These materials exhibited excellent stability and durability, and the adsorption of water molecules optimized the channels for efficient proton transfer.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Multidisciplinary Sciences
Grigorii Skorupskii, Khoa N. Le, Dmitri Leo Mesoza Cordova, Luming Yang, Tianyang Chen, Christopher H. Hendon, Maxx Q. Arguilla, Mircea Dinca
Summary: Metallic charge transport and porosity are often considered incompatible, but our research has discovered a porous metal material that exhibits metallic conductivity. This finding provides a unique approach to controlling unconventional states within these materials.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Review
Chemistry, Multidisciplinary
Chuang Fan, Wenrou Dong, Yousaf Saira, Yawen Tang, Gengtao Fu, Jong-Min Lee
Summary: Metal-organic frameworks (MOFs) and their derivatives, integrated with rare earth (RE) elements, have shown remarkable potential in the field of photo/electrocatalysis. The incorporation of RE can effectively enhance the catalytic performance of MOFs by regulating their electronic structure and coordination environment. This review provides a comprehensive summary and discussion of the progress and applications of RE-modified MOFs and their derivatives in photo/electrocatalysis, as well as the challenges and prospects for further research.
Article
Nanoscience & Nanotechnology
Yakun Sun, Long Li, Xinxu Li, Ya-Nan Feng, Fei-Fei Chen, Lingyun Li, Yan Yu
Summary: This work demonstrates the critical roles of rare earth compounds (Er2O3 and ErF3) in regulating the activity and selectivity of CO2 reduction reaction on cobalt, improving CO selectivity and catalytic efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Wanqing Lin, Zhigang Zhao, Fan Yang, Zhaoli Liu, Fengzhi Tan, Meiying Xie, Ying Ma, Lingyi Meng
Summary: A novel crystalline adsorbent MIL-101-DGA has been synthesized in this study, showing excellent separation capability for europium and other rare earth ions. The experiments demonstrated high separation coefficient and maximum adsorption capacity, highlighting the potential of MIL-101-DGA for effective separation and recovery of europium.
MINERALS ENGINEERING
(2021)
Article
Chemistry, Inorganic & Nuclear
Fabio Manna, Mariangela Oggianu, Narcis Avarvari, Maria Laura Mercuri
Summary: Lanthanide metal-organic frameworks (Ln-MOFs) with single-molecule magnet (SMM) properties are a growing family of materials where magnetic properties can be controlled by interrelated parameters, such as solvent, temperature, organic linkers, lanthanide ions, and coordination environment. This overview discusses synthetic methods for accessing MOFs/Ln-MOFs and controlling/fine-tuning their SMM behavior. It also explores challenging strategies for inducing SMM/SIM behavior, including redox activity and chirality, as well as intriguing physical phenomena such as the CISS effect and CPL.
Article
Materials Science, Multidisciplinary
Amr Ghazy, Mika Lastusaari, Maarit Karppinen
Summary: Precisely composition-tuned lanthanide-organic thin films with white light emission are fabricated using ALD/MLD technique. The emission characteristics are comparable to or even better than those of commercial incandescent bulbs, fluorescent tubes, and LED lamps. The films consist of up to four lanthanide species and terephthalate as the organic linker, which not only provides mechanical flexibility and defines the distance between lanthanide ions but also exhibits UV/blue broad-band emission upon UV excitation. The emission energy is efficiently transferred to Er3+ ions, resulting in longer wavelength emission, while Tb and Eu contribute to green and red emissions, producing warm white light emission in the films. By controlling the distribution of Ln dopants using a three-layer composition, the emission intensity is increased fourfold.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Chong Zhang, Zhong-Shan Li, Xi-Yan Dong, Yun-Yin Niu, Shuang-Quan Zang
Summary: Through self-assembly of chiral metal-organic frameworks and perovskite nanocrystals, a pair of crystalline enantiomeric adducts was successfully prepared, where the perovskite nanocrystals embedded into chiral MOFs exhibited photoswitchable CPL properties. Reversible CPL switches were achieved based on two chiral emission centers and their distinct characteristics under various external stimuli.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Elena Bartolome, Ludovica Ferrari, Francesco Sedona, Ana Arauzo, Javier Rubin, Javier Luzon, Julia Herrero-Albillos, Mirco Panighel, Aitor Mugarza, Marzio Rancan, Mauro Sambi, Lidia Armelao, Juan Bartolome, Fernando Bartolome
Summary: We investigate the deposition of monolayers and multilayers of {Cr-10} wheels on Au(111) and Cu(111) substrates, and analyze their properties using various spectroscopic techniques. The magnetic behavior of {Cr-10} monolayers on Ag(111) and Cu(111) exhibits slight differences compared to the bulk, which can be rationalized by considering the impact of surface deposition on intra-wheel coupling interactions. The sensitivity of {Cr-10} to molecular distortions suggests potential applications for controlling magnetism with external stimuli.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Kyung Seob Song, Patrick W. Fritz, Daniel F. Abbott, Lok Nga Poon, Cristiano M. Caridade, Felipe Gandara, Victor Mougel, Ali Coskun
Summary: We synthesized a series of metallophthalocyanine-based covalent organic frameworks using a mixed-metal salt ionothermal approach. These frameworks exhibit high stability, physicochemical properties, and catalytic activity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Borja Ortin-Rubio, Cristina Perona-Bermejo, Jose A. Suarez del Pino, Francisco J. J. Carmona, Felipe Gandara, Jorge A. R. Navarro, Judith Juanhuix, Inhar Imaz, Daniel Maspoch
Summary: BCN-348 is a new high-connected Zr-MOF that combines an 8-connected cubic Zr-oxocluster with an 8-connected organic linker. It features a minimal edge-transitive 3,4,8-c eps net and possesses mesoporosity and thermal and hydrolytic stability. Preliminary studies indicate its potential as a catalyst for the hydrolysis of nerve-agent simulants, suggesting its use as a detoxification agent for chemical weapons and other harmful compounds.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Roberta A. Kehoe, Mark E. Light, David J. Jones, Gerard P. McGlacken
Summary: One-pot processes offer an environmentally friendly and time-saving approach to building complex molecules. This study presents a phosphine-free, inorganic base free, multi-step, one-pot reaction sequence for the rapid synthesis of complex medicinally relevant heterocycles. The approach combines three distinct reactions using a single pre-catalyst and achieves excellent yields. The study also reports favorable mass productivity, environmental impact factor, solvent intensity, and process mass intensity values.
Article
Chemistry, Inorganic & Nuclear
E. Bartolome, A. Arauzo, S. Fuertes, L. Navarro-Spreafica, P. Sevilla, H. Fernandez Cortes, N. Settineri, S. J. Teat, E. C. Sanudo
Summary: We synthesized lanthanoid-based 2D metal-organic frameworks (MOFs) using a simple, microwave-assisted method. The MOFs consisted of neutral nanosheets held together by van der Waals interactions, which could be easily exfoliated. All synthesized 2D MOFs exhibited photoluminescent emission in the visible range, indicating the efficiency of benzoates as antenna ligands. Heterometallic compounds showed efficient energy transfer and could potentially be used as luminescent thermometers. Inks containing exfoliated nanosheets of 2D MOFs were prepared and luminescent prints were made on paper for anticounterfeiting purposes. Frequency-dependent ac susceptibility measurements revealed slow magnetic relaxation in the heterometallic compounds, with a slower relaxation time for higher Eu/Tb ratios.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Daniel J. M. Irving, Mark E. Light, Matilda P. Rhodes, Terence Threlfall, Thomas F. Headen
Summary: Through X-ray and neutron total scattering, as well as Empirical Potential Structure Refinement (EPSR), the prenucleation structures of saturated aqueous magnesium sulfate are explored. The provided atomistic model reveals isolated octahedral aquo magnesium species, magnesium sulfate pairs, and extended clusters built from corner-sharing MgO6 and SO4 polyhedra. The average first solvation shell of the sulfate anion exhibits a complex and flexible environment, with water molecules brought into proximity by a coordinated hydrated magnesium. Ions' tendency to aggregate into clusters allows for differences in structure between bulk water and pure water.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Cornelia von Baeckmann, Sara Ruiz-Relano, Inhar Imaz, Marcel Handke, Judith Juanhuix, Felipe Gandara, Arnau Carne-Sanchez, Daniel Maspoch
Summary: To increase the chemical complexity of metal-organic cages and polyhedra, it is important to control the organization of diverse organic linkers and metal ions. This study demonstrates that a pre-assembled complex of a cuboctahedral polyhedron can serve as a template to replicate a caged structure with a triblock Janus-type configuration that is both heterometallic and heteroleptic.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Raluca Loredana Vasile, Romualdo S. Silva Jr, Eva Cespedes, Jose L. Martinez, Enrique Gutierrez-Puebla, M. Angeles Monge, Felipe Gandara
Summary: This study investigates the magnetocaloric effect in a series of rare-earth-based metal-organic frameworks (MOFs). The results show that the choice of rare-earth cation and structural parameters have a significant impact on the magnetic entropy change and cooling power. The study also reveals the influence of hydrostatic pressure on these properties. The findings suggest a new design strategy for efficient cooling devices based on engineered MOF systems.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Tania Mazuelo, Teresa Naranjo, Miguel Gomez-Mendoza, Alejandro Herrero Pizarro, Laura Collado, Mariam Barawi, Felipe Gandara, Marta Liras, Victor A. de la Pena O'shea
Summary: The conversion of sunlight into chemical energy for solar hydrogen production is a promising solution for sustainable energy alternatives. The successful synthesis of a COF based on BOPHY dye (IEC-2) with excellent chemical stability for light-driven applications is described. A hybrid photocatalyst based on IEC-2 and TiO2 was studied for solar hydrogen evolution, and IEC-2@T-10 exhibited higher hydrogen production and photonic efficiency compared to benchmark TiO2.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Multidisciplinary Sciences
Abdul Khayum Mohammed, Safa Gaber, Jesus Raya, Tina Skorjanc, Nada Elmerhi, Sasi Stephen, Pilar Pena Sanchez, Felipe Gandara, Steven J. Hinder, Mark A. Baker, Kyriaki Polychronopoulou, Dinesh Shetty
Summary: In this study, a chemical-induction phase-engineering strategy was demonstrated to transform a two-dimensional Cu-based SA-MOF into 2D-COFs. The phase transition allowed for in-situ pore size engineering, resulting in improved uniformity and low percentage-doped metal distribution, as well as enhanced crystallinity, porosity, and stability in the Cu-TpCOFs compared to the parent Cu-Tp MOF.
SCIENTIFIC REPORTS
(2023)