Article
Chemistry, Multidisciplinary
Xiangquan Hu, Wenjuan Tian, Yuan Jiao, Steven P. Kelley, Ping Wang, Scott J. Dalgarno, David A. Atwood, Sisi Feng, Jerry L. Atwood
Summary: This study reports a method for the controlled self-assembly of vanadium-seamed metal-organic nanocapsules with specific metal oxidation state distributions. Crystallographic studies reveal the structural complexity and geometries of the new capsules, while the differences in metal oxidation state greatly affect their photoelectric conversion properties. This work represents a significant advancement in the construction of intricate metal-organic architectures.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Chunqing Ji, Shanshan Liu, Kongzhao Su, El-Sayed M. El-Sayed, Heyuan Liu, Wenjing Wang, Fenglei Qiu, Xiyou Li, Daqiang Yuan
Summary: Hydrothermal synthesis of a novel cobalt-seamed C-ethylpyrogallol[4]arene-based metalorganic nanocapsule (Co(24)PgC(2) MONC) can easily be converted into micelles in water using Tween-20, leading to a significant increase in photocatalytic hydrogen evolution efficiency. The addition of Tween-20 not only homogenizes the catalyst and provides more active sites, but also inhibits energy transfer between the photosensitizer and nanocapsules.
ACS MATERIALS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Kanishka Sikligar, Steven P. Kelley, Gary A. Baker, Jerry L. Atwood
Summary: In this work, the solvothermal reaction of C-alkylpyrogallol[4]arene (alkyl = methyl, ethyl) in cesium containing N,N-dimethylformamide (DMF) yielded coordination networks with distinct cesium environments featuring dual coordination modes. These networks showcase a combination of O-coordination and π bonding with the C-alkylpyrogallol[4]arene receptor, suggesting the potential for further interesting architectures in alkali metal-incorporated systems.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Kanishka Sikligar, Steven P. Kelley, Li Shao, Gary A. Baker, Jerry L. Atwood
Summary: Hierarchical coordination frameworks based on a new praseodymium(III) - seamed metal-organic nanocapsule have been synthesized, characterized, and studied. Factors influencing the formation of one-dimensional versus three-dimensional coordination frameworks from the nanocapsule supramolecular building block are delineated.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Engineering, Environmental
Ying Pan, Congying Rao, Xiaolin Tan, Yun Ling, Ayushi Singh, Abhinav Kumar, Baohong Li, Jianqiang Liu
Summary: In this study, Co@C composites with incredibly high adsorption capacity for CPZ removal were successfully designed and fabricated. The composites exhibited interconnected micro-and mesoporous structures, well-dispersed Co adsorption active sites, and superior recycling ability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Fengyi Yang, Jiali Chen, Junwen Wang, Jinjian Liu
Summary: Recently, researchers have been inspired by the construction and optical capabilities of 2,5-bis (4-pyridine)-thiazolo [5,4-d] thiazole. They have successfully synthesized five novel supramolecular assemblies based on the extended viologen moiety and different benzenecarboxylic acids. These assemblies exhibit reversible photochromic behavior and have potential applications in photo-controlled fluorescence and inkless and erasable printing.
Article
Chemistry, Multidisciplinary
Fengyi Yang, Jiali Chen, Junwen Wang, Jinjian Liu
Summary: In this study, five novel supramolecular assemblies based on the thiazolothiazole extended viologen moiety were synthesized through a self-assembly reaction. Among them, two assemblies exhibited reversible photochromic behavior, and the photo-controlled fluorescence and inkless and erasable printing capabilities were discussed.
Article
Chemistry, Multidisciplinary
Harshita Kumari, Cindi L. Dennis, Steven R. Kline, Andrew Mossine, Carol A. Deakyne, Jerry L. Atwood
Summary: The magnetic properties of nickel-seamed C-pyrogallol[4]arene (PgC(3)Ni) hexamers and dimers are studied for the first time in solution. The study reveals the presence of an unprecedented 13 angstrom-radius species and confirms the existence of two additional new species. Select parameters that shift the equilibrium towards desired species are identified.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Harshita Kumari, Wei G. Wycoff, Collin M. Mayhan, Steven R. Kline, Joshua R. So, Carol A. Deakyne, John E. Adams, Jerry L. Atwood
Summary: The structural stability and solution geometry of zinc-seamed-C-propylpyrogallol[4]arene dimers have been studied using in situ neutron scattering and 2D-DOSY NMR methods. The larger spherical geometry of the PgC(3)Zn species in solution is attributed to the presence of ligands at the periphery. This enhanced radius in solution due to ligation is consistent with findings from model molecular dynamics simulations of the zinc-seamed dimers.
Article
Chemistry, Multidisciplinary
Yanan Yu, Zhao Wang, Ziping Li, Xinxin Hang, Yanfeng Bi
Summary: Three cobalt-thiacalix[4]arene coordination clusters were synthesized using a solvothermal self-assembly method, featuring adenine-functionalized secondary building units. The structures exhibit different coordination modes and symmetries, formed by linking multiple basic units through ligand bridging.
Article
Chemistry, Inorganic & Nuclear
Fei-Fei Wang, Ying-Ying Liu, Wen-Yuan Pei, Jian-Fang Ma
Summary: In the presence of three structure-directing agents, a series of imidazole-functionalized resorcin[4]arene-based coordination polymers were successfully assembled under solvothermal conditions, exhibiting remarkable catalytic performance and utilizing a small organic acid as a structure-directing agent for the first time.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Organic
Suren J. Nemat, Konrad Tiefenbacher
Summary: Three novel thiol-bearing resorcin[4]arene and pyrogallol[4]arene derivatives were synthesized and studied for their properties in self-assembly, disulfide chemistry, and Bronsted acid catalysis. The findings showed that one compound could form a hexameric hydrogen bond-based capsule in self-assembly, another compound could be covalently linked through disulfides, and the increased acidity of aromatic thio-substituent was not sufficient to replace HCl as a cocatalyst for capsule-catalyzed terpene cyclizations.
Article
Chemistry, Physical
Marta Kubovics, Oriol Careta, Oriol Vallcorba, Guillermo Romo-Islas, Laura Rodriguez, Jose A. Ayllon, Concepcion Domingo, Carme Nogues, Ana M. Lopez-Periago
Summary: A series of porous metalloporphyrin frameworks were prepared using supercritical CO2 as a solvent. These frameworks showed surface areas of about 450 m2 g-1 and were obtained by coordinating metal complexes to the pyridine moieties in the porphyrin linker. The Co(II)-based MOF was crystallized using a layering technique and showed high-quality crystals.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Qin Wang, Mei-Chen Liu, Wen-Qi Sun, Rui-Lian Lin, Jing-Xin Liu
Summary: In this study, a potential photochromic compound was incorporated into macrocyclic hosts to generate a new kind of photochromic material. The binding models between the guest and hosts were found to depend on the amount of guest and the cavity size of the hosts. The photochromic behaviors were determined to be caused by electron transfer from the hosts to the guest, resulting in the generation of free radicals.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Olga Kataeva, Kirill Metlushka, Kamil Ivshin, Zilya Yamaleeva, Ruzal Zinnatullin, Kristina Nikitina, Elena Badeeva, Vera Khrizanforova, Yulia Budnikova, Marco Naumann, Christoph Wellm, Alexey Alfonsov, Vladislav Kataev, Bernd Buechner, Martin Knupfer
Summary: The structures and properties of mononuclear and polymeric Co(ii) complexes formed by enantiopure and racemic N-thiophosphorylated thioureas with cobalt were studied in detail, and various analytical methods were used for characterization.
Article
Chemistry, Multidisciplinary
Li Shao, Hanwen Zhang, Xiaoqing He, Bin Hua, Xiangquan Hu, Caixia Wan, Steven P. Kelley, Jerry L. Atwood
Summary: A novel host-guest recognition motif based on PgC(3) and PEG was reported, which can selectively entrap high molecular weight PEG to form complex structures, and PgC(3) has the ability to efficiently adsorb PEG from aqueous solutions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Review
Chemistry, Multidisciplinary
Bin Hua, Li Shao, Ming Li, Haozhong Liang, Feihe Huang
Summary: Supramolecular polymers created by noncovalent interactions have attracted significant attention for their versatile applications in fields such as medicine, catalysis, and sensing. Macrocyclic hosts play a crucial role in the development of supramolecular polymers and can self-assemble to form well-ordered structures. These structures offer unique functionalities and properties. While the focus has been on supramolecular soft materials, the solid-state formation of macrocycle-based supramolecular polymers is challenging yet promising. These materials allow for the creation of new materials with novel properties such as mechano-responsiveness. Additionally, their molecular structures can be identified through X-ray crystallography, leading to a better understanding of the supramolecular polymerization process. The classification of these materials based on different noncovalent interactions is important for the controlled design and construction of supramolecular polymers.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Kanishka Sikligar, Steven P. Kelley, Gary A. Baker, Jerry L. Atwood
Summary: In this work, the solvothermal reaction of C-alkylpyrogallol[4]arene (alkyl = methyl, ethyl) in cesium containing N,N-dimethylformamide (DMF) yielded coordination networks with distinct cesium environments featuring dual coordination modes. These networks showcase a combination of O-coordination and π bonding with the C-alkylpyrogallol[4]arene receptor, suggesting the potential for further interesting architectures in alkali metal-incorporated systems.
CRYSTAL GROWTH & DESIGN
(2022)
Review
Chemistry, Multidisciplinary
Li Shao, Jinrong Ma, Jesse L. Prelesnik, Yicheng Zhou, Mary Nguyen, Mingfei Zhao, Samson A. Jenekhe, Sergei V. Kalinin, Andrew L. Ferguson, Jim Pfaendtner, Christopher J. Mundy, James J. De Yoreo, Franccommaois Baneyx, Chun-Long Chen
Summary: This article discusses the characteristics and applications of hierarchical materials that exhibit order over multiple length scales. It highlights the advantages of using proteins, peptides, and peptidomimetics as building blocks for hierarchical structures. The article reviews recent progress in the rational design and characterization of hierarchical materials, with a focus on stimuli-responsive and smart architectures. It also explores the use of computational simulations and data-driven predictions to understand the assembly process of hierarchical materials. The article suggests that further research in these areas will enable predictive materials synthesis based on designed interactions, surface effects, and solution conditions.
Article
Chemistry, Multidisciplinary
Ming Li, Yang Liu, Li Shao, Bin Hua, Mengbin Wang, Haozhong Liang, Niveen M. Khashab, Jonathan L. Sessler, Feihe Huang
Summary: Variable stoichiometry co-crystals are important in solid-state supramolecular chemistry as they allow for the study of structure-property relationships and the synthesis of new scaffolds. In this work, the concept of variable stoichiometry co-crystals is extended to pillararene chemistry, resulting in the construction of a diverse set of supramolecular structures. These co-crystals display different physicochemical properties and can be used for vapochromic-based detection.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Haozhong Liang, Yuting Yang, Li Shao, Weijie Zhu, Xiaofeng Liu, Bin Hua, Feihe Huang
Summary: It is found that using pillar[5]arene (BrP5) as the macrocyclic host to encapsulate nonlinear optical (NLO) materials (OM, DAST, and MNS) can change their solid-state packing and manipulate their centrosymmetric arrangements, achieving second harmonic generation (SHG) in the solid and crystalline states. This research opens a new way to construct solid-state organic NLO materials with potential applications in high-power lasers, optical switches, and imaging.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Li Shao, Bin Hua, Xueru Zhao, Shuai Lu, Guangfeng Li
Summary: In this study, a novel supramolecular polymer based on pillar[5]arene macrocycles was reported. This fluorescent polymer exhibits a prominent blue emission without conventional chromophores. The emission peak can be slightly tuned through the modification of alkyl chain ending groups attached to the pillar[5]arenes. This study expands the application of functional supramolecular polymer systems and provides valuable insights for the design of luminescent materials and optical devices.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Xiangquan Hu, Wenjuan Tian, Yuan Jiao, Steven P. Kelley, Ping Wang, Scott J. Dalgarno, David A. Atwood, Sisi Feng, Jerry L. Atwood
Summary: This study reports a method for the controlled self-assembly of vanadium-seamed metal-organic nanocapsules with specific metal oxidation state distributions. Crystallographic studies reveal the structural complexity and geometries of the new capsules, while the differences in metal oxidation state greatly affect their photoelectric conversion properties. This work represents a significant advancement in the construction of intricate metal-organic architectures.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Bohan Zhao, Jianwei Wang, Li Shao, Yitao Wu, Ming Li, Bin Hua, Feihe Huang
Summary: An efficient adsorptive separation method using nonporous adaptive crystals of perbromoethylated pillar[5]arene (BrP5) for monobromotoluene isomers is reported. The purity of separated m-bromotoluene from an equal volume mixture of m-bromotoluene and o-bromotoluene reaches 96.6% in one cycle, and the adsorbent BrP5 can be reused without losing separation performance.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Xiangquan Hu, Meirong Han, Leicheng Wang, Li Shao, Yadav Peeyush, Jialei Du, Steven P. Kelley, Scott J. Dalgarno, David A. Atwood, Sisi Feng, Jerry L. Atwood
Summary: Here we present a Cu2+-seamed coordination nanocapsule that acts as an efficient semiconductor photocatalyst for activating molecular oxygen. The capsule is formed through the self-assembly of cuprous bromide and C-pentyl-pyrogallol[4]arene facilitated by redox reaction. Photophysical and electrochemical studies indicate its strong visible-light absorption and photocurrent polarity switching effect. This novel molecular solid material can activate molecular oxygen into reactive oxygen species under simulated sunlight, enabling catalytic aerobic oxidation reactions. This work provides new insights into designing nonporous discrete metal-organic supramolecular assemblies for solar-driven molecular oxygen activation.
Article
Chemistry, Multidisciplinary
Haozhong Liang, Yuting Yang, Li Shao, Weijie Zhu, Xiaofeng Liu, Bin Hua, Feihe Huang
Summary: In this study, pillar[5]arene was used as a host molecule to encapsulate NLO molecules (OM, DAST, and MNS) in order to change their solid-state packing and manipulate their centrosymmetric arrangements. Experimental results showed that different packing arrangements resulted in different levels of second harmonic generation (SHG). This research provides a new approach to construct solid-state organic NLO materials with potential applications in high-power lasers, optical switches, and imaging.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Kanishka Sikligar, Steven P. Kelley, Gary A. Baker, Jerry L. Atwood
Summary: We present a study on a two-dimensional hexagonal honeycomb network made of barium-seamed metal-organic nanocapsules, which incorporates barium ions as spacers to create a solvent-accessible void. The individual void volume of this hierarchical self-assembly is approximately 13,000 angstrom(3). This work demonstrates the surprising chemistry that can be achieved by integrating large or classically non-reactive metal ions into supramolecular assemblies, networks, and organic nanocapsules.
CHEMICAL COMMUNICATIONS
(2023)