Two-dimensional supramolecular spring: coordination driven reversible extension and contraction of bridged half rings

2014 ◽  
Vol 50 (66) ◽  
pp. 9369-9371 ◽  
Author(s):  
Dapeng Luo ◽  
Xuemei Zhang ◽  
Yongtao Shen ◽  
Jing Xu ◽  
Lijin Shu ◽  
...  
Keyword(s):  
Single Molecule ◽  
Glycol Ether ◽  
Tetraethylene Glycol ◽  
Two Dimensional ◽  
Single Molecule Level ◽  
Self Assembled

A tetraethylene glycol ether bridged derivative 9 has been designed and synthesized, and its two-dimensional (2D) self-assembled behavior has been investigated at the single-molecule level.

scholarly journals Realizing Two-Dimensional Spin Arrays on Surfaces via Halogen-Bonding Molecular Self-Assembly

2021 ◽  
Author(s):  
Dingguan Wang ◽  
Zishen Wang ◽  
Shaofei Wu ◽  
Arramel Arramel ◽  
Xinmao Yin ◽  
...  
Keyword(s):  
Single Molecule ◽  
Self Assembly ◽  
Halogen Bonding ◽  
Scanning Tunneling ◽  
Two Dimensional ◽  
Halogen Bonds ◽  
Tunneling Microscopy ◽  
Single Molecule Level ◽  
Magnetic Devices ◽  
Temperature Scanning

Well-ordered spin arrays are highly desirable for next-generation molecule-based magnetic devices, and yet its synthetic method remains a challenging task. Herein, we demonstrate the realization of two-dimensional supramolecular spin arrays on surfaces via halogen-bonding molecular self-assembly. A bromine-terminal perchlorotriphenymethyl radical with net carbon spin was synthesized and deposited on Au(111) to achieve two-dimensional supramolecular spin arrays. By taking advantage of the diversity of halogen bonds, five supramolecular spin arrays are presented with ultrahigh spin densities (up to the value of 3 × 10<sup>13</sup> spins at the size of a flash drive), as probed by low-temperature scanning tunneling microscopy at the single-molecule level. First principle calculations verify that the formation of three distinct types of halogen bonds can be used to tailor supramolecular phases via molecular coverage and annealing temperature. Our work demonstrates supramolecular self-assembly as a promising method to engineering 2D spin arrays for potential application in magnetic devices.

scholarly journals Two-Dimensional Fluorescence Lifetime Correlation Spectroscopy: Concepts and Applications

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2972 ◽  
Author(s):  
Takuhiro Otosu ◽  
Shoichi Yamaguchi
Keyword(s):  
Single Molecule ◽  
Fluorescence Lifetime ◽  
Fluorescence Correlation Spectroscopy ◽  
Conformational Dynamics ◽  
Correlation Spectroscopy ◽  
Two Dimensional ◽  
Single Molecule Level ◽  
Fluorescence Correlation ◽  
Promising Tool ◽  
Molecular Ruler

We review the basic concepts and recent applications of two-dimensional fluorescence lifetime correlation spectroscopy (2D FLCS), which is the extension of fluorescence correlation spectroscopy (FCS) to analyze the correlation of fluorescence lifetime in addition to fluorescence intensity. Fluorescence lifetime is sensitive to the microenvironment and can be a “molecular ruler” when combined with FRET. Utilization of fluorescence lifetime in 2D FLCS thus enables us to quantify the inhomogeneity of the system and the interconversion dynamics among different species with a higher time resolution than other single-molecule techniques. Recent applications of 2D FLCS to various biological systems demonstrate that 2D FLCS is a unique and promising tool to quantitatively analyze the microsecond conformational dynamics of macromolecules at the single-molecule level.

Two-Dimensional Center-of-Mass Diffusion of Lipid-Tethered Poly(2-methyl-2-oxazoline) at the Air–Water Interface Studied at the Single Molecule Level

Langmuir ◽  
2008 ◽  
Vol 24 (10) ◽  
pp. 5580-5584 ◽  
Author(s):  
Karin Lüdtke ◽  
Rainer Jordan ◽  
Nathan Furr ◽  
Sumit Garg ◽  
Kelsey Forsythe ◽  
...  
Keyword(s):  
Single Molecule ◽  
Center Of Mass ◽  
Mass Diffusion ◽  
Water Interface ◽  
Two Dimensional ◽  
Single Molecule Level ◽  
Air Water Interface

scholarly journals Realizing Two-Dimensional Spin Arrays on Surfaces via Halogen-Bonding Molecular Self-Assembly

2021 ◽  
Author(s):  
Dingguan Wang ◽  
Zishen Wang ◽  
Shaofei Wu ◽  
Arramel Arramel ◽  
Xinmao Yin ◽  
...  
Keyword(s):  
Single Molecule ◽  
Self Assembly ◽  
Halogen Bonding ◽  
Scanning Tunneling ◽  
Two Dimensional ◽  
Halogen Bonds ◽  
Tunneling Microscopy ◽  
Single Molecule Level ◽  
Magnetic Devices ◽  
Temperature Scanning

Well-ordered spin arrays are highly desirable for next-generation molecule-based magnetic devices, and yet its synthetic method remains a challenging task. Herein, we demonstrate the realization of two-dimensional supramolecular spin arrays on surfaces via halogen-bonding molecular self-assembly. A bromine-terminal perchlorotriphenymethyl radical with net carbon spin was synthesized and deposited on Au(111) to achieve two-dimensional supramolecular spin arrays. By taking advantage of the diversity of halogen bonds, five supramolecular spin arrays are presented with ultrahigh spin densities (up to the value of 3 × 10<sup>13</sup> spins at the size of a flash drive), as probed by low-temperature scanning tunneling microscopy at the single-molecule level. First principle calculations verify that the formation of three distinct types of halogen bonds can be used to tailor supramolecular phases via molecular coverage and annealing temperature. Our work demonstrates supramolecular self-assembly as a promising method to engineering 2D spin arrays for potential application in magnetic devices.

Atomic Force Microscopy (AFM) for Topography and Recognition Imaging at Single Molecule Level

2013 ◽  
pp. 102-112
Author(s):  
Memed Duman ◽  
Andreas Ebner ◽  
Christian Rankl ◽  
Jilin Tang ◽  
Lilia A. Chtcheglova ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Single Molecule ◽  
Single Molecule Level ◽  
Force Microscopy ◽  
Atomic Force ◽  
Recognition Imaging

Curaxin-Induced DNA Topology Alterations Trigger the Distinct Binding Response of CTCF and FACT at the Single-Molecule Level

Biochemistry ◽  
2021 ◽  
Vol 60 (7) ◽  
pp. 494-499
Author(s):  
Ke Lu ◽  
Cuifang Liu ◽  
Yinuo Liu ◽  
Anfeng Luo ◽  
Jun Chen ◽  
...  
Keyword(s):  
Single Molecule ◽  
Dna Topology ◽  
Single Molecule Level
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