Article
Chemistry, Multidisciplinary
Rong Luo, Cungang Xu, Guobo Chen, Chen-Ze Xie, Peng Chen, Nan Jiang, Dong-Mei Zhang, Yuhua Fan, Feng Shao
Summary: A series of Co(II)-H2L coordination polymers were synthesized with different auxiliary ligands. X-ray diffraction analyses revealed that 1, 3, and 4 have a two-dimensional (2D) structure, while 2 has a one-dimensional (1D) double-chain architecture. Sensing experiments showed that 1 and 2 can selectively detect Cr3+, Al3+, and Pb2+ ions through fluorescence turn-on effect, while 3-4 exhibit fluorescence turn-off sensing behavior for Fe3+ ions. Moreover, 1-4 can effectively detect and recognize Cr2O72- and CrO42- in aqueous solutions.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Rong Luo, Cungang Xu, Guobo Chen, Chen-Ze Xie, Peng Chen, Nan Jiang, Dong-Mei Zhang, Yuhua Fan, Feng Shao
Summary: A series of Co(II)-H2L coordination polymers with different auxiliary ligands were synthesized via a solvothermal method. X-ray diffraction analyses showed that compounds 1, 3, and 4 exhibited a two-dimensional structure, while compound 2 displayed a one-dimensional double-chain structure. Compounds 1 and 2 showed fluorescence turn-on sensing for Cr3+, Al3+, and Pb2+ ions, while compounds 3 and 4 exhibited turn-off sensing for Fe3+ ions. Additionally, compounds 1-4 could effectively detect and recognize Cr2O72- and CrO42- ions with high selectivity and sensitivity in aqueous solutions.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Hui Li, Fengqian Chen, Xinyu Guan, Jiali Li, Cuiyan Li, Bin Tang, Valentin Valtchev, Yushan Yan, Shilun Qiu, Qianrong Fang
Summary: This study presents the design and synthesis of 3D triptycene-based COFs with specific topologies, which exhibit excellent gas adsorption performance. The materials show potential for diversifying 3D COFs based on complex building blocks and hold promise for applications in energy storage and environmental fields.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Duqingcuo Li, Yichen Liu, Ruifang Xiang, Yuyan Li, Tianrui Qin, Xiu Yan Dong, Hiroshi Sakiyama, Mohd. Muddassir, Jianqiang Liu
Summary: Two new manganese(ii) coordination polymers (CPs) were synthesized and their magnetic properties were studied, revealing complicated cryomagnetic behavior possibly due to temperature-induced structural changes.
Article
Engineering, Chemical
Yu-Zhen Shi, Qing-Hua Hu, Xin Gao, Li Zhang, Ru-Ping Liang, Jian-Ding Qiu
Summary: An indium-based metal-organic framework (In-MOF) is reported for highly efficient removal of radioactive iodine from seawater. In-MOF shows high chemical stability, high adsorption capacity, and high selectivity towards iodine, leading to a high removal rate of 93.86% from seawater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Shiyuan Zhou, Peiyang Gu, Haibo Wan, Yutao Zhu, Najun Li, Dongyun Chen, Antonio Marcomini, Qingfeng Xu, Jianmei Lu
Summary: Rigid triptycene- and pentiptycene-based monomers were polymerized to fabricate crosslinked porous architectures P1 and P2, which exhibit good thermal stability and efficient adsorption performance for phenolic organic pollutants. These polymers show highly selective adsorption capacity towards the pollutants.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Li-Hao Xu, Shen-Hui Li, Heng Mao, Yan Li, Ao-Shuai Zhang, Sen Wang, Wei-Min Liu, Jing Lv, Tao Wang, Wei-Wei Cai, Le Sang, Wen-Wen Xie, Chan Pei, Zheng-Zheng Li, Ying-Nan Feng, Zhi-Ping Zhao
Summary: This study presents a strategy to create highly flexible metal-organic framework nanosheet membranes for alcohol-water separation. The membranes exhibited ultrafast transport channels and achieved high flux and separation performance.
Article
Chemistry, Multidisciplinary
Josephine F. Smernik, Pol Gimeno-Fonquernie, Jorge Albalad, Tyla S. Jones, Rosemary J. Young, Neil R. Champness, Christian J. Doonan, Jack D. Evans, Christopher J. Sumby
Summary: This study investigates the synthesis of Mn-based metal-organic frameworks (MOFs), finding that MnMOF-1 is a kinetic or metastable phase, while a newly identified 2D layered material, MnMOF-2D, is the thermodynamically favored product. It is also shown that using longer linkers can help to form more stable structures. In addition, two new porous 3D Mn-based MOFs were successfully synthesized, highlighting the viability of using tetratopic hinged linkers to form 3D MOFs.
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
Jiao Li, Jingfang Tian, Haihuan Yu, Mingyue Fan, Xiao Li, Fangbin Liu, Jing Sun, Zhongmin Su
Summary: In this paper, five novel luminescent Cd(II)-metal-organic frameworks (MOFs) were synthesized and used for the effective detection of Fe3+, Cr2O72-, and picric acid (TNP). The MOFs show satisfactory sensitivity and selectivity for the targeted analytes, demonstrating their potential in environmental detection applications.
CRYSTAL GROWTH & DESIGN
(2022)
Review
Chemistry, Inorganic & Nuclear
Yanmei Feng, Ying Xu, Shucheng Liu, Di Wu, Zhuoqun Su, Guang Chen, Jianghua Liu, Guoliang Li
Summary: This paper discusses the challenges of enzyme immobilization in nano-space and explores the potential of metal-organic frameworks, covalent organic frameworks, and hydrogen-bonded organic frameworks as promising carriers for enzyme immobilization. Additionally, the paper provides a comprehensive summary of the applications of enzyme-MOF/COF/HOF biocomposites in various sensing strategies and tentatively discusses the challenges and opportunities in this field.
COORDINATION CHEMISTRY REVIEWS
(2022)
Review
Chemistry, Multidisciplinary
Dongming Cai, Zhuxian Yang, Rui Tong, Haiming Huang, Chuankun Zhang, Yongde Xia
Summary: The fast development of Internet of Things and wearable electronics has created a demand for cost-effective and efficient electroactive materials for flexible energy storage devices. Binder-free nanostructured arrays have gained attention due to their ability to promote fast electron/ion transportation, withstand bending or twisting, and enhance the capacity of the whole device. The use of binder-free metal-organic framework (MOF) nanoarrays and MOF-derived nanoarrays with high surface area and unique porous structure has shown great potential in energy storage and has been extensively explored. This review compares and discusses the common substrates used for binder-free nanoarrays, analyzes the electrochemical performance of various MOF-based and MOF-derived nanoarrays, and examines their applications in flexible energy storage. The review also highlights key technical issues and future developments in this field.
Review
Chemistry, Inorganic & Nuclear
Bin Zhang, Weize Wang, Bo Liu, Lei Hou
Summary: Indium metal-organic frameworks (In-MOFs) based on pyridylcarboxylate ligands are a subclass of MOFs with diverse structures, high stability, and various properties. This type of MOF shows potential applications in adsorption and separation, catalysis, and chemical sensors. The introduction of pyridine groups enriches In3+ ion clusters and allows for the flexible, controllable synthesis of ionic or neutral frameworks.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Caoling Li, Jian Shen, Kangbing Wu, Nianjun Yang
Summary: The properties and applications of metal-organic frameworks (MOFs) can be tuned by their metal centers and organic ligands. Specifically, 2D Cu-2MI exhibits strong adsorption energies and the biggest intrinsic rate constants towards analytes, enabling accurate and comparable monitoring in real samples.
Article
Chemistry, Multidisciplinary
Arijit Halder, Ryan A. Klein, Sarah Shulda, Gavin A. McCarver, Philip A. Parilla, Hiroyasu Furukawa, Craig M. Brown, C. Michael McGuirk
Summary: Step-shaped adsorption-desorption of gaseous payloads by flexible metal-organic frameworks can facilitate the delivery of large usable capacities with reduced energetic penalties. The multivariate linker approach is a powerful tool for tuning the phase change behavior of flexible frameworks. In this work, a multivariate framework was developed with a considerably reduced threshold pressure and desirable adsorption-desorption profile for efficient storage and delivery of weakly physisorbing species.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Miguel A. Soto, Veronica Carta, Maria T. Cano, Ryan J. Andrews, Brian O. Patrick, Mark J. MacLachlan
Summary: This study presents a compact cyclometalated platinum(II) complex that can respond to cationic guests, solvent molecules, and solvent polarity by producing changes in luminescence and color. This multiresponsive complex may have potential applications in sensors, hybrid supramolecular polymers, and metallogels.
INORGANIC CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Zongzhe Li, Miguel A. Soto, James G. Drummond, D. Mark Martinez, Wadood Y. Hamad, Mark J. MacLachlan
Summary: This study reports a novel strategy to synthesize cellulose nanocrystal (CNC) gels with tunable mechanical properties. By applying sequential freeze-thaw cycling and hydrothermal treatments, a series of pristine CNC hydrogels and lightweight CNC aerogels were successfully prepared. The mechanical, microstructural, and thermal properties of these materials were investigated, demonstrating their potential applications in various fields.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Miguel A. Soto, Veronica Carta, Ingrid Suzana, Brian O. Patrick, Francesco Lelj, Mark J. MacLachlan
Summary: Macrocycle engineering is a key topic in supramolecular chemistry. This study combines different approaches and post-synthetic modifications to transform a single tether into multiple rings. The macrocycles undergo redox reactions, allowing for control of conformational changes and host activity, enabling the capture and release of guests, ring transformations, and control of pseudorotaxane-to-pseudorotaxane conversions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Biochemistry & Molecular Biology
Lucas J. Andrew, Christopher M. Walters, Wadood Y. Hamad, Mark J. MacLachlan
Summary: Composite films of cellulose nanocrystals (CNCs) and polymers were prepared by solvent evaporation, and the effects of different polymers on CNC self assembly were investigated. It was found that PVP physically adsorbs to the surface of CNCs, resulting in a blue shift in film color with increasing concentration and polymer molecular weight. PEG induces depletion interactions that decrease the size of chiral nematic CNC domains, but has negligible effect on film color. PAA hydrogen bonds to the hydroxyl groups of CNCs, resulting in a blue shift in color along with interesting rheological and liquid-state properties.
Article
Chemistry, Multidisciplinary
Mingcong Xu, Zhen Xu, Miguel A. Soto, Yi-Tao Xu, Wadood Y. Hamad, Mark J. MacLachlan
Summary: This study demonstrates that cellulose nanocrystal shape-memory polymers (CNC-SMPs) with luminescent components enable mechanically responsive circularly polarized luminescence (CPL). The chiral nematic organization of CNCs in the material allows for precise control of CPL emission with varied wavelengths and high dissymmetry factors (g(lum)). Moreover, colorimetric and CPL-active patterns are created by imprinting desired forms into SMP samples. This study presents a novel way to fabricate smart CPL systems using biomaterials.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Miguel A. Soto, Mohammad T. Chaudhry, Gunwant K. Matharu, Francesco Lelj, Mark J. MacLachlan
Summary: Despite their unique potential, metal-metal bonds have seldom been studied as active components in supramolecular assemblies. In this research, a dynamic molecular container named "flytrap" was constructed using Pt-Pt bonds, and its flexible jaw can adapt to bind large inorganic cations. The flytrap was characterized spectroscopically and crystallographically, and its photochemical assembly was reported, which enables the capture and transport of ions. Additionally, the reversible nature of the Pt-Pt bond allows for the regeneration of the flytrap's starting material. The advances presented here could be applied to assemble other molecular containers and materials for substrate harvesting from solution.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Kyoungil Cho, Lucas J. Andrew, Mark J. MacLachlan
Summary: Zeolitic imidazolate framework (ZIF-8) nanocrystals were grown uniformly on cellulose nanocrystals (CNCs) surface to produce ZIF@CNCs hybrid material. By adjusting the component stoichiometry, the size of ZIF-8 crystals on CNC surface could be controlled. ZIF@CNC-2 was optimized and used as a template to synthesize microporous organic polymer (MOP), ZIF@MOP@CNC. After etching ZIF-8, a MOP material with enclosed CNCs (MOP@CNC) was formed. Zinc coordination into MOP porphyrin unit resulted in ship-in-a-bottle structure, Zn MOP@CNC, where CNCs were encapsulated within Zn-MOP. Compared to ZIF@CNC-2, Zn MOP@CNC exhibited superior catalytic activity and chemical stability for CO2 fixation, converting epichlorohydrin to chloroethylene carbonate. This work presents a novel method of creating porous materials using CNC templating.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Multidisciplinary
Francesco D'Acierno, Carl A. Michal, Mark J. MacLachlan
Summary: This article provides a comprehensive literature review on the thermal stability of cellulose nanomaterials (CNMs). It identifies five major factors affecting CNMs' thermal stability and establishes a quantitative relationship between thermal stability and seven variables using multiple linear least-squares regression. The findings of this study can guide the design of CNMs with predictable thermal properties and the identification of optimal conditions for achieving high thermal stability.
Article
Chemistry, Multidisciplinary
Lucas J. Andrew, Emma R. Gillman, Christopher M. Walters, Erlantz Lizundia, Mark J. MacLachlan
Summary: This paper presents a novel chiral nematic activated carbon aerogel material based on renewable cellulose, which exhibits high specific surface area and superparamagnetic behavior, making it suitable for supercapacitor applications.
Article
Nanoscience & Nanotechnology
Madhureeta Das Gupta, Charlotte E. Boott, Jennifer E. Goon, Brian O. Patrick, Mark J. MacLachlan, Jolene P. Reid
Summary: Supramolecular nanofibers with a narrow length distribution were obtained through the self-assembly of a tris-salphen complex. The length of the nanofibers could be easily adjusted while maintaining low dispersity by controlling the self-assembly conditions. Crystal structure analysis and density functional theory calculations indicated the presence of a metastable aggregate, which transforms into longer supramolecular nanofibers upon heating. The controlled molecular assembly of these complexes may have significant implications for catalysis, electronics, and optical applications.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Amanda J. Ackroyd, Adam De Paolis, Yi-Tao Xu, Arash Momeni, Wadood Y. Hamad, Mark J. MacLachlan
Summary: Biological systems utilize limited degrees of freedom to drive self-assembly of nano- and microarchitectures. Simplified systems, such as colloidal nanoparticles, can mimic biological structures. In this study, the self-assembly of cellulose nanocrystals (CNCs) was investigated in geometries with square cross-sections, revealing a radial shell structure formed by the chiral nematic phase of CNCs under confinement. These findings contribute to the understanding of self-assembling systems and the development of new technologies.
Article
Chemistry, Physical
Zongzhe Li, Karl Tsang, Yi-Tao Xu, James G. G. Drummond, D. Mark Martinez, Mark J. J. MacLachlan
Summary: Understanding the fundamental properties of chiral nematic cellulose nanocrystal (CNC) aerogels is crucial for expanding their potential applications. We report on the directional thermal and mechanical properties of CNC aerogels and have discovered unexpected differences in thermal conductivity and mechanical strength between different surfaces. These findings are important for understanding the nature of CNC aerogels and expanding their potential applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Inorganic & Nuclear
Huan Gao, Miguel A. Soto, Joanna K. Szymkowiak, Lucas J. Andrew, Wadood Y. Hamad, Mark J. MacLachlan
Summary: In this study, halloysite nanotubes (HNTs) were incorporated into cellulose nanocrystal (CNC) films to prepare organic-inorganic composite films with enhanced mechanical properties and maintained iridescence. The hybrid composite films containing 10 wt% HNTs exhibited increased elasticity, with a 1.3-fold increase in tensile strength and a 1.6-fold increase in maximum strain compared to pristine CNC films. Additionally, the incorporation of HNTs slightly improved the thermal stability of the composite films. These materials mimic the hybrid composite structures of crab shells and provide enhanced mechanical properties and thermal stability for CNC films while preserving iridescence.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Organic
Mohammad T. Chaudhry, Brian O. Patrick, Shigehisa Akine, Mark J. MacLachlan
Summary: This study investigated the binding properties of metal-free Salphen macrocycles. The results showed that these macrocycles have strong binding abilities to spherical cationic guests, with K+ and Na+ exhibiting the highest binding affinities. However, larger steric demanding cationic guests showed little to no binding. The binding pocket of the macrocycle is slightly smaller than the traditional 18-crown-6 structure, leading to guest binding outside the cavity and the formation of 2:1 complexes.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Arash Momeni, Wadood Y. Hamad, Mark J. MacLachlan
Summary: We demonstrate for the first time that continuous rotation of a mixture of cellulose nanocrystals (CNCs) and monomer in a capillary tube results in well-organized structures. This method can be used to develop core-shell fibers with potential applications in the field of optics.
Article
Chemistry, Multidisciplinary
Abu Talha Aqueel Ahmed, Sankar Sekar, Shubhangi S. Khadtare, Nurul Taufiqu Rochman, Bathula Chinna, Abu Saad Ansari
Summary: In this study, MnCo2S4 nanosheet catalyst was successfully synthesized and found to exhibit superior performance in hydrogen evolution. Compared to MnCo2S4, MnCo2S4 showed low overpotentials, moderate Tafel slope, and excellent sustainability. The outstanding performance can be attributed to the increased number of electrochemically active sites and enhanced electronic conductivity on the catalyst surface.
Article
Chemistry, Multidisciplinary
Victor V. Maltsev, Elena A. Volkova, Elizaveta V. Koporulina, Diana D. Mitina, Vladimir L. Kosorukov, Anna I. Jiliaeva, Daniil A. Naprasnikov, Konstantin N. Gorbachenya, Viktor E. Kisel
Summary: The phase relationships, crystal properties and luminescence kinetics of two complex systems were studied, including unit cell parameters, segregation coefficients of impurities, and lifetimes of energy levels.
Article
Chemistry, Multidisciplinary
Xiaoman Zhang, Wangwang Xu, W. J. Meng, Andrew C. Meng
Summary: This study successfully grew high-quality single crystal AlScN nanowires through ultra-high vacuum reactive sputtering technique and characterized their structure and properties. The nanowires exhibit significantly reduced mosaic spread and predominantly single ferroelectric domains, as well as a high piezoelectric constant.
Article
Chemistry, Multidisciplinary
Tom E. de Vries, Elias Vlieg, Rene de Gelder
Summary: Networks are important for describing relationships between people, roads between cities, reactions between chemicals, and other interactions. Bipartiteness, dividing the network into two groups, can facilitate the study of the network's structure. We have developed an algorithm that can find a near-optimal bipartisation within a reasonable time frame and used it to uncover the hidden structure of the CSD cocrystal network.
Article
Chemistry, Multidisciplinary
Chuchu Han, Jing Yang, Xin Zhang, Aisen Li, Jiang Peng
Summary: An elastic crystal based on a photo-reactive acylhydrazone derivative is reported, which exhibits reversible bending behavior under UV irradiation and heating. The crystal undergoes reversible E<->Z isomerization under light and heating conditions. The crystal demonstrates excellent elastic properties and the bending can be controlled to control the output direction of red light.
Article
Chemistry, Multidisciplinary
Lingfeng Zhang, Yu Wang, Yefeng Wang, Shuai Liu, Na Zhang, Mingmin Yang, Haixia Ma, Zhaoqi Guo
Summary: This study designs and synthesizes a series of high-energy salts compounds without heavy metal ions and azide groups. The molecular structures and stability of the compounds are confirmed through single-crystal X-ray diffraction and intermolecular interaction analysis. Furthermore, the thermal stability, energetic properties, and electrical initiation properties of the compounds are investigated, suggesting their potential as primary explosives.