One-dimensional molecular chains formed by Sierpiński triangles on Au(111)

Zhang, Xue; Gu, Gaochen; Li, Na; Wang, Hao; Tang, Hao; Zhang, Yajie; Hou, Shimin; Wang, Yongfeng

doi:10.1039/c7ra11825b

Cited by 17 publications

(18 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Surface-supported molecular Sierpiński triangles (STs) were revealed by theoretical simulations first , and experimentally prepared later. − A representative ST formed by coordination between 120° V-shaped organic molecules and metal atoms is schematically displayed in Figure a. If chiral biomolecules could mimic metal atoms to form 3-fold nodes with 120° V-shaped ligands, biomolecular STs are anticipated (Figure a).…”

mentioning

confidence: 99%

Packing Biomolecules into Sierpiński Triangles with Global Organizational Chirality

et al. 2021

J. Am. Chem. Soc.

Self Cite

View full text Add to dashboard Cite

Fractals are found in nature and play important roles in biological functions. However, it is challenging to controllably prepare biomolecule fractals. In this study, a series of Sierpinśki triangles with global organizational chirality is successfully constructed by the coassembly of L-tryptophan and 1,3-bi(4-pyridyl)benzene molecules on Ag(111). The chirality is switched when replacing L-tryptophan by D-tryptophan. The fractal structures are characterized by low-temperature scanning tunneling microscopy at the single-molecule level. Density functional theory calculations reveal that intermolecular hydrogen bonds stabilize the Sierpinśki triangles.

show abstract

mentioning

confidence: 99%

Packing Biomolecules into Sierpiński Triangles with Global Organizational Chirality

et al. 2021

J. Am. Chem. Soc.

Self Cite

View full text Add to dashboard Cite

show abstract

“…26,27 In principle, the combination of three-fold and 120º V-shaped nodes is the basic requirement for creating Sierpiński triangle selfassembly. [28][29][30] Molecular based Sierpiński triangles have been experimentally achieved on single-crystalline surfaces 31 via supramolecular structures such as halogen bonding, 29 hydrogen bonding, 32 and metal−organic coordination [33][34][35][36][37] or in the form of covalently-bonded polymers. 30,38,39 To grow a COF from a low-symmetry monomer, we selected 1,3benzene diboronic acid (1,3-BDBA) with a reduced D1 symmetry as the monomer (Fig.…”

mentioning

confidence: 99%

Covalent organic frameworks from a monomer with reduced symmetry: polymorphism and Sierpiński triangles

et al. 2019

View full text Add to dashboard Cite

show abstract

“…In the past decade, the construction of Sierpiński triangles (STs) on surfaces has attracted increasing attention due to their aperiodic but ordered structures that give them specific mechanical, optical, electronic, and magnetic properties. − Theoretical predictions have revealed that the combination of threefold and 120° V-shaped molecules with terminal interaction centers is the general prerequisite to create STs; , this is corroborated by a pioneering experimental study of Wu et al . Subsequently, a variety of molecular-based STs have been achieved on metal surfaces by noncovalent − (e.g., coordination bonds − and hydrogen bonds , ) and covalent bonding interactions. − More recently, an important development reported by Wang et al detailed the construction of ST-derived MONs on a Au(111) surface …”

Section: Introductionmentioning

confidence: 96%

Steering Metal–Organic Network Structures through Conformations and Configurations on Surfaces

Zhang

Kang

et al. 2021

ACS Nano

View full text Add to dashboard Cite

Molecular adsorption conformations and arrangement configurations on surfaces are important structural aspects of surface stereochemistry, but their roles in steering the structures of metal–organic networks (MONs) remain vague and unexplored. In this study, we constructed MONs by the coordination self-assembly of isocyanides on Cu(111) and Ag(111) surfaces and demonstrated that the MON structures can be steered by surface stereochemistry, including the adsorption conformations of the isocyanide molecules and the arrangement configurations of the coordination nodes and subunits. The coordination self-assembly of 1,4-phenylene diisocyanobenzene afforded a honeycomb MON consisting of 3-fold (isocyano)3–Cu motifs on a Cu(111) surface. In contrast, geometrically different chevron-shaped 1,3-phenylene diisocyanobenzene (m-DICB) failed to generate a MON, which is ascribable to its standing conformation on the Cu(111) surface. However, m-DICB was adsorbed in a flat conformation on a Ag(111) surface, which has a larger lattice constant than a Cu(111) surface, and smoothly underwent coordination self-assembly to form a MON consisting of (isocyano)3–Ag motifs. Interestingly, only C3–Ag nodes with heterotactic configurations could grow into larger subunits; those subunits with heterotactic configurations further grew into Sierpiński triangle fractals (up to fourth order), while subunits with homotactic configurations afforded a triangular MON.

show abstract

One-dimensional molecular chains formed by Sierpiński triangles on Au(111)

Abstract: One-dimensional molecular chains with Sierpiński triangles as building blocks were prepared on Au(111) and studied by low-temperature scanning tunneling microscopy.

Cited by 17 publications

References 21 publications

Packing Biomolecules into Sierpiński Triangles with Global Organizational Chirality

Packing Biomolecules into Sierpiński Triangles with Global Organizational Chirality

Covalent organic frameworks from a monomer with reduced symmetry: polymorphism and Sierpiński triangles

Steering Metal–Organic Network Structures through Conformations and Configurations on Surfaces

Contact Info

Product

Resources

About