Synthesis of Two-Dimensional Metal–Organic Frameworks via Dehydrogenation Reactions on a Cu(111) Surface

Song, Luying; Yang, Biao; Liu, Fangfang; Niu, Kaifeng; Han, Yangyang; Wang, Junbo; Zheng, Yuanjing; Zhang, Haiming; Li, Qing; Chi, Lifeng

doi:10.1021/acs.jpcc.0c00931

Cited by 17 publications

(18 citation statements)

References 76 publications

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“…It should be noted that intermediate states can be observed in this phase: a five-membered ring is formed on one side, while the other side maintains the pristine structure (Figure S5). Similar to our previous observations, , the dehydrogenated imino groups interact with each other via N–Ag–N bonds, as shown in Figure d and Figure S5. Because molecules do not have dominant configurations ( trans or cis ) at this stage, metal–organic interactions lead to the formation of irregular oligomers.…”

supporting

confidence: 90%

Intra- and Inter-Self-Assembly of Identical Supramolecules on Silver Surfaces

Song

Yang

Fan

et al. 2022

J. Phys. Chem. Lett.

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Self-assembly of identical organometallic supramolecules into ordered superstructures is of great interest in both chemical science and nanotechnology due to its potential to generate neoteric properties through collective effects. In this work, we demonstrate that large-scale self-organization of atomically precise organometallic supramolecules can be achieved through cascaded on-surface chemical reactions, by the combination of intra- and inter-supramolecular interactions. Supramolecules with defined size and shape are first built through intramolecular reaction and intermolecular metal coordination, followed by the formation of well-ordered two-dimensional arrays with the assistance of Br atoms by −C–H···Br interactions. The mechanism of this process has been investigated from the perspectives of thermodynamics and kinetics.

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confidence: 90%

Intra- and Inter-Self-Assembly of Identical Supramolecules on Silver Surfaces

Song

Yang

Fan

et al. 2022

J. Phys. Chem. Lett.

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“…Tha halogen-adatom structural transformation in 2D molecular grouping shows non-covalent interactions and catalytic responses on a metal substrate [ 62 ]. Governable development of numerous organometallic assemblies via bond activation approach in the stepwise process [ 63 ] or creation of 2D MOF via dehydrogenation of aromatic amines on the Cu (111) or co-adsorbing organic ligands and metal atoms [ 64 ] for the forthcoming expansion of nanoelectronics and 2D crystal engineering. Thus, molecular orbitals and spin-state of the complex can be engineered via selecting metal atoms (iron or nickel).…”

Section: Metal–ligand Coordination; Metal–organic Framework (Mof)mentioning

confidence: 99%

Supramolecular Chemistry: Host–Guest Molecular Complexes

Khan

Lee

2021

Molecules

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In recent times, researchers have emphasized practical approaches for capturing coordinated and selective guest entrap. The physisorbed nanoporous supramolecular complexes have been widely used to restrain various guest species on compact supporting surfaces. The host–guest (HG) interactions in two-dimensional (2D) permeable porous linkages are growing expeditiously due to their future applications in biocatalysis, separation technology, or nanoscale patterning. The different crystal-like nanoporous network has been acquired to enclose and trap guest molecules of various dimensions and contours. The host centers have been lumped together via noncovalent interactions (such as hydrogen bonds, van der Waals (vdW) interactions, or coordinate bonds). In this review article, we enlighten and elucidate recent progress in HG chemistry, explored via scanning tunneling microscopy (STM). We summarize the synthesis, design, and characterization of typical HG structural design examined on various substrates, under ambient surroundings at the liquid-solid (LS) interface, or during ultrahigh vacuum (UHV). We emphasize isoreticular complexes, vibrant HG coordination, or hosts functional cavities responsive to the applied stimulus. Finally, we critically discuss the significant challenges in advancing this developing electrochemical field.

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“…Molecular biomimetics focuses on making novel materials and devices which are inspired by nature or imitate functions of biological systems. − Amino acids and peptides have been used to create functional biomimetic three-dimensional (3D) materials − and are interesting because they have structural variability and potential for artificial modification. , In a parallel development, metal–ligand bonding has been extensively employed for constructing highly ordered 2D metal–organic coordination networks on surfaces by coadsorbing transition metals, such as Fe, Co, Ni, or Cu, with a variety of organic ligands, including trimesic acid, terephtalic acid, aromatic amines, porphyrins, or the DNA-base guanine. − Biomimetic surface-bound metal–organic coordination networks are not least interesting because they may mimic active sites in metallo-protein complexes. , For peptides, considerable effort has been devoted to characterize their adsorption and self-assembly mechanisms on surfaces, resulting in a variety of two-dimensional peptide-based architectures. − However, peptide-based 2D metal-organic coordination networks on surfaces have not been reported upon to date, possibly due to the wide variety of potential coordination modes and inherent asymmetry of peptide sequences (and individual amino acids), which may limit their application in building well-defined coordination structures on surfaces.…”

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confidence: 99%

Two-Dimensional Coordination Networks from Cyclic Dipeptides

et al. 2020

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Peptide-based biomimetic nanostructures and metal−organic coordination networks on surfaces are two promising classes of hybrid materials which have been explored recently. However, despite the great versatility and structural variability of natural and synthetic peptides, the two directions have so far not been merged in fabrication of metal−organic coordination networks using peptides as building blocks. Here we demonstrate that cyclic peptides can be used as ligands to form highly ordered, two-dimensional, peptide-based metal−organic coordination networks. The networks are formed on a Au(111) surface through coadsorption of cyclic dialanine with Cu-adatoms under Ultra-High Vacuum (UHV) conditions. Scanning Tunneling Microscopy (STM) in combination with X-ray Photoelectron spectroscopy (XPS) has been utilized to characterize the network structures at submolecular resolution and expound the chemical changes involved in network coordination. The networks involve a motif of three cyclic dialanine molecules coordinating to a central Cu-adatom. Interestingly the networks expose pores functionalized by the side chain of the cyclic peptide, suggesting a general method to form functionalized porous metal−organic networks on surfaces.

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Synthesis of Two-Dimensional Metal–Organic Frameworks via Dehydrogenation Reactions on a Cu(111) Surface

Cited by 17 publications

References 76 publications

Intra- and Inter-Self-Assembly of Identical Supramolecules on Silver Surfaces

Intra- and Inter-Self-Assembly of Identical Supramolecules on Silver Surfaces

Supramolecular Chemistry: Host–Guest Molecular Complexes

Two-Dimensional Coordination Networks from Cyclic Dipeptides

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