Four different three-dimensional metal-fullerene frameworks were synthesized through polymerization of two C -derived dodecaacids with varying alkyl spacers in the presence of Ca , Cu or Cd ions. Structural analysis of the frameworks was performed by single-crystal X-ray diffraction and porosity of the materials was investigated by sorption measurements.
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An all-metal fullerene: [K@AuSb].
Science
November 2023
State Key Laboratory of Elemento-Organic Chemistry, Tianjin Key Lab of Rare Earth Materials and Applications, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
The C fullerene molecule has attracted tremendous interest for its distinctive nearly spherical structure. By contrast, all-metal counterparts have been elusive: Fullerene-like clusters composed of noncarbon elements typically suffer from instability, resulting in more compact geometries that require multiple embedded atoms or external ligands for stabilization. In this work, we present the synthesis of an all-metal fullerene cluster, [K@AuSb], using a wet-chemistry method.
View Article and Find Full Text PDFDiversity of Metal-Fullerene Framework Structures Regulated by Metal Salts.
Nanomaterials (Basel)
April 2022
State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
Taking into account the diversity of fullerene ligands and metal salts, metal-fullerene frameworks (MFFs) present a variety of structures. Currently, the structural control of MFFs mainly relies on the design and synthesis of fullerene ligands, while the influence of metal building units on the structures has been rarely studied. The present work represents a systematical investigation of fullerene-linked supramolecular architectures incorporating different metal salts.
View Article and Find Full Text PDFHeterospin frustration in a metal-fullerene-bonded semiconductive antiferromagnet.
Nat Commun
January 2022
Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai, 980-8578, Japan.
Lithium-ion-encapsulated fullerenes (Li@C) are 3D superatoms with rich oxidative states. Here we show a conductive and magnetically frustrated metal-fullerene-bonded framework {[Cu(Li@C)(L)(py)](NTf)(hexane)} (1) (L = 1,2,4,5-tetrakis(methanesulfonamido)benzene, py = pyridine, NTf = bis(trifluoromethane)sulfonamide anion) prepared from redox-active dinuclear metal complex Cu(L)(py) and lithium-ion-encapsulated fullerene salt (Li@C)(NTf). Electron donor Cu(L)(py) bonds to acceptor Li@C via eight Cu‒C bonds.
View Article and Find Full Text PDFMetal-Based Diversity for Crystalline Metal-Fullerene Frameworks.
Chemistry
November 2017
Universität Würzburg, Institut für Organische Chemie, Am Hubland, 97074, Würzburg, Germany.
Four different three-dimensional metal-fullerene frameworks were synthesized through polymerization of two C -derived dodecaacids with varying alkyl spacers in the presence of Ca , Cu or Cd ions. Structural analysis of the frameworks was performed by single-crystal X-ray diffraction and porosity of the materials was investigated by sorption measurements.
View Article and Find Full Text PDFThree-Dimensional Metal-Fullerene Frameworks.
Chemistry
April 2016
Institut für Organische Chemie and, Center for Nanosystems Chemistry (CNC), Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.
Hexakis-substituted [60]fullerene adducts with icosahedral symmetry provide an unprecedented scaffold for the spatial arrangement of twelve functional groups with high geometric precision. This unique molecular symmetry identifies such polyfunctional organic building blocks as potential highly connective linkers for coordination polymer and metal-organic framework synthesis. Hereby, the linker exhibits a higher connectivity than the metal ions and with the main connectivity based on the ligand, this can create a new type of inversely cross-linked framework.
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