Bis-naphthalimides bridged by electron acceptors: optical and self-assembly characteristics

RSC Advances ◽  
2016 ◽  
Vol 6 (75) ◽  
pp. 71638-71651 ◽  
Author(s):  
Ankita Saini ◽  
K. R. Justin Thomas
Keyword(s):  
Self Assembly ◽  
Organic Molecules ◽  
Vital Role ◽  
Electron Acceptors ◽  
Supramolecular Structures ◽  
The Self ◽  
Small Organic Molecules

The self-assembly of small organic molecules into molecular stacks plays a vital role in the construction of stable supramolecular structures.

How Did It All Begin?: The Self-Assembly of Organic Molecules and the Origin of Cellular Life

2002 ◽  
Vol 11 ◽  
pp. 179-194
Author(s):  
David W. Deamer
Keyword(s):  
Origin Of Life ◽  
20Th Century ◽  
Self Assembly ◽  
Organic Molecules ◽  
Western Culture ◽  
The Self ◽  
Late 20Th Century ◽  
Cellular Life ◽  
The Earth ◽  
The Origin Of Life

Movies are the myths of late-20th century western culture. Because of the power of films likeETto capture our imagination, we are more likely than past generations to accept the possibility that life exists elsewhere in our galaxy. Such a myth can be used to sketch the main themes of this chapter, which concern the origin of life on the Earth.

Role of the deposition temperature on the self-assembly of the non-planar molecule benzene-1,3,5-triphosphonic acid (BTP) at the liquid–solid interface

2016 ◽  
Vol 18 (35) ◽  
pp. 24219-24227 ◽  
Author(s):  
Doan Chau Yen Nguyen ◽  
Lars Smykalla ◽  
Thi Ngoc Ha Nguyen ◽  
Michael Mehring ◽  
Michael Hietschold
Keyword(s):  
Self Assembly ◽  
Deposition Temperature ◽  
Supramolecular Structures ◽  
The Self ◽  
Solid Interface ◽  
Planar Molecule ◽  
Hydrogen Bonded

Hydrogen-bonded supramolecular structures of BTP at the undecanol–graphite interface were studied by STM in dependence on the deposition temperature.

Edge Transport and Self-Assembly of Passive Objects in a Chiral Active Fluid*

2021 ◽  
Vol 38 (12) ◽  
pp. 128701
Author(s):  
Qing Yang ◽  
Huan Liang ◽  
Rui Liu ◽  
Ke Chen ◽  
Fangfu Ye ◽  
...  
Keyword(s):  
Transport Phenomenon ◽  
Computer Simulations ◽  
Self Assembly ◽  
Vital Role ◽  
The Self ◽  
Spherical Particles ◽  
Stable Clusters ◽  
Assembly Behavior ◽  
Insight Into ◽  
Edge Flow

Abstract Topological edge flow and dissipationless odd viscosity are two remarkable features of chiral active fluids composed of active spinners. These features can significantly influence the dynamics of suspended passive particles and the interactions between the particles. By computer simulations, we investigate the transport phenomenon of anisotropic passive objects and the self-assembly behavior of passive spherical particles in the active spinner fluid. It is found that in confined systems, nonspherical passive objects can stably cling to boundary walls and are unidirectionally and robustly transported by edge flow of spinners. Furthermore, in an unconfined system, passive spherical particles are able to form stable clusters that spontaneously and unidirectionally rotate as a whole. In these phenomena, strong particle-wall and interparticle effective attractions play a vital role, which originate from spinner-mediated depletion-like interactions and can be largely enhanced by odd viscosity of spinner fluids. Our results thus provide new insight into the robust transport of cargoes and the nonequilibrium self-assembly of passive intruders.

Planarization of tetracarboxamides: tuning the self-assembly of polycyclic aromatic hydrocarbons

2019 ◽  
Vol 55 (43) ◽  
pp. 6070-6073
Author(s):  
Yeray Dorca ◽  
Cristina Naranjo ◽  
Patricia Delgado-Martínez ◽  
Rafael Gómez ◽  
Luis Sánchez
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Self Assembly ◽  
Supramolecular Structures ◽  
The Self ◽  
Supramolecular Polymers ◽  
Self Assembling ◽  
Π Stacking ◽  
Polycyclic Aromatic

The geometry-dependent self-assembling features of two PAHs, 1 and 2, is reported. The more planar 1 forms H-type supramolecular polymers, in a highly cooperative fashion by combination of H-bonding and π-stacking, with rod-like morphology. However, the highly distorted 2 interacts only by means of H-bonding yielding lamellar supramolecular structures.

Supramolecular structures formed by the self assembly of ionic fullerenes in binary liquid mixtures

2007 ◽  
Vol 22 (11) ◽  
pp. 3029-3035 ◽  
Author(s):  
Tohru Shiga ◽  
Tomoyoshi Motohiro
Keyword(s):  
Self Assembly ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Supramolecular Structures ◽  
The Self ◽  
Laser Raman Spectroscopy ◽  
Raman Spectroscopic ◽  
Laser Raman ◽  
Binary Liquid ◽  
Unit Cells

The self assembly of C60-N, N′-dimethylpyrrolidinium iodide (C60-DMePyI) in binary liquid mixtures has been investigated. C60-DMePyI self-organized into nanosheets in a mixture of toluene and iodomethane, and aggregated to form nanofibers in toluene. The dimensions of the nanosheets were several micrometers in length and about 100 nm in thickness. Scanning electron microscope observations indicated that a large number of nanorods having a diameter of about 20-nm formed matted nanosheets. When iodomethane alone was used as a solvent, supramolecular structures such as nanofibers and nanosheets were not produced. Structural analyses of the C60-DMePyI aggregates were carried out by laser Raman spectroscopy and x-ray diffraction (XRD). The Raman spectroscopic results suggested that an ordered chain of successive polyiodine units was formed in all the supramolecular aggregates. The XRD studies showed that the crystal systems of the nanosheets and nanofibers were monoclinic, though with different unit cells.

TERRACE INDUCED HOMOCHIRAL SELF-ASSEMBLY OF ZINC PHTHALOCYANINEON COPPER (111) SURFACE

2016 ◽  
Vol 23 (06) ◽  
pp. 1650047
Author(s):  
XIN SONG ◽  
HUIHUI KONG ◽  
LACHENG LIU ◽  
XIAOQING LIU ◽  
MINGDONG DONG ◽  
...  
Keyword(s):  
Self Assembly ◽  
Growth Process ◽  
Room Temperature ◽  
Organic Molecules ◽  
The Self ◽  
Step Edge ◽  
Suitable Method ◽  
Large Area ◽  
Molecular Assemblies ◽  
Lower Terrace

It is still a challenge to find a suitable method to fabricate a well-defined homochiral surface from achiral molecules, and one of the possible methods is to modify surfaces with organic molecular assemblies. Large-area chiral self-assembly nanostructures have been observed at room temperature by depositing ZnPc molecules on a Cu(111) surface. The growth process has been investigated. ZnPc molecules get adsorbed first at the terrace steps, and then extend over the lower terrace until the whole terrace is covered with ZnPc molecules; such growth process would be stopped when the self-assembly nanostructure run into a decorated upper terrace step edge. We found that the terrace steps with specific directions with respect to the close-packed directions of the substrate can induce homochiral self-assembly on the lower terraces. So we can propose a possible way to fabricate a well-defined homochiral surface from achiral organic molecules.

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