scholarly journals Charge-Transfer Forces in the Self-Assembly of Heteromolecular Reactive Solids:  Successful Design of Unique (Single-Crystal-to-Single-Crystal) Diels−Alder Cycloadditions

2001 ◽  
Vol 123 (21) ◽  
pp. 4951-4959 ◽  
Author(s):  
J. H. Kim ◽  
S. V. Lindeman ◽  
J. K. Kochi
Keyword(s):  
Charge Transfer ◽  
Single Crystal ◽  
Self Assembly ◽  
Diels Alder ◽  
The Self ◽  
Successful Design

Self-Assembly of Alkali Lignin in Tetrahydrofuran

2012 ◽  
Vol 550-553 ◽  
pp. 57-61
Author(s):  
Hao Li ◽  
Yong Hong Deng ◽  
Kai Huang
Keyword(s):  
Charge Transfer ◽  
Electrostatic Interaction ◽  
Self Assembly ◽  
The Self ◽  
Charge Transfer Complexes ◽  
Layer By Layer ◽  
Alkali Lignin ◽  
Higher Temperature ◽  
Effects Of Temperature

Alkali lignin (AL) was used as a polyanion to form layer-by-layer self-assembled film with PDAC as a polycation. The effects of temperature and concentration on the adsorption characteristics of AL were investigated. Iodine was added into AL solutions to study the role of π-π interaction in self-assembly of AL and PDAC. Results show that the self-assembly of AL/PDAC is mainly driven by π-π interaction and electrostatic interaction. A higher temperature or a larger concentration can enhance the aggregation of lignin. I2 can form lignin–iodine charge–transfer complexes with AL to reduce the degree of aggregation of AL, so the adsorbed amount of AL decreases significantly with increasing iodine contents.

scholarly journals Recrystallization of tubules from natural lotus (Nelumbo nucifera) wax on a Au(111) surface

2011 ◽  
Vol 2 ◽  
pp. 261-267 ◽  
Author(s):  
Sujit Kumar Dora ◽  
Klaus Wandelt
Keyword(s):  
Physical Properties ◽  
Single Crystal ◽  
Self Assembly ◽  
Nelumbo Nucifera ◽  
The Self ◽  
Tubule Formation ◽  
First Results ◽  
Substrate Properties ◽  
Lotus Leaves ◽  
Natural Wax

We present here the first results on the self-assembly of tubules of natural wax from lotus leaves on a single crystal Au(111) surface. A comparison of the tubule growth on Au(111) to that on HOPG is discussed. Although the tubule formation on both Au(111) and HOPG takes place on an intermediate wax film which should mask the substrate properties, the tubule orientations differ. In contrast to a vertical tubule orientation on HOPG, the tubules lie flat on Au(111). Taking into account the physical properties of HOPG and Au(111), we put forward a hypothesis which can explain the different tubule orientations on both substrates.

scholarly journals Energy landscapes and dynamics of glycine on Cu(110)

2017 ◽  
Vol 19 (25) ◽  
pp. 16600-16605 ◽  
Author(s):  
Marco Sacchi ◽  
David J. Wales ◽  
Stephen J. Jenkins
Keyword(s):  
Amino Acids ◽  
Single Crystal ◽  
Long Range ◽  
Self Assembly ◽  
Metal Surfaces ◽  
The Self ◽  
Self Assembled Monolayers ◽  
Energy Landscapes ◽  
Assembly Mechanism ◽  
Assembled Monolayers

Amino acids adsorbed on single-crystal metal surfaces have emerged as prototypical systems for exploring the properties that govern the development of long-range chirality in self-assembled monolayers and supramolecular 2D networks. In this study, we characterise the self-assembly mechanism for glycine on the Cu(110) surface.

scholarly journals Towards 2D layered hybrid perovskites with enhanced functionality: introducing charge-transfer complexes via self-assembly

2019 ◽  
Vol 55 (17) ◽  
pp. 2481-2484 ◽  
Author(s):  
Wouter T. M. Van Gompel ◽  
Roald Herckens ◽  
Kristof Van Hecke ◽  
Bart Ruttens ◽  
Jan D'Haen ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Self Assembly ◽  
The Self ◽  
Charge Transfer Complexes ◽  
Organic Layer ◽  
The Family ◽  
Layered Perovskites

This study broadens the family of 2D layered perovskites by the self-assembly of organic charge-transfer complexes in their organic layer.

scholarly journals Self-assembly of metallosupramolecular rhombi from chiral concave 9,9’-spirobifluorene-derived bis(pyridine) ligands

2014 ◽  
Vol 10 ◽  
pp. 432-441 ◽  
Author(s):  
Rainer Hovorka ◽  
Sophie Hytteballe ◽  
Torsten Piehler ◽  
Georg Meyer-Eppler ◽  
Filip Topić ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Single Crystal ◽  
Self Assembly ◽  
The Self ◽  
Assembly Process ◽  
X Ray Diffraction ◽  
X Ray ◽  
Pyridine Ligands ◽  
Racemic Form

Two new 9,9’-spirobifluorene-based bis(4-pyridines) were synthesised in enantiopure and one also in racemic form. These ligands act as concave templates and form metallosupramolecular [(dppp)2M2L2] rhombi with cis-protected [(dppp)Pd]2+ and [(dppp)Pt]2+ ions. The self-assembly process of the racemic ligand preferably occurs in a narcissistic self-recognising manner. Hence, a mixture of all three possible stereoisomers [(dppp)2M2{(R)-L}2](OTf)4, [(dppp)2M2{(S)-L}2](OTf)4, and [(dppp)2M2{(R)-L}{(S)-L}](OTf)4 was obtained in an approximate 1.5:1.5:1 ratio which corresponds to an amplification of the homochiral assemblies by a factor of approximately three as evidenced by NMR spectroscopy and mass spectrometry. The racemic homochiral assemblies could also be characterised by single crystal X-ray diffraction.

Molecular tweezers for fullerenes

2010 ◽  
Vol 82 (3) ◽  
pp. 523-533 ◽  
Author(s):  
Emilio M. Pérez ◽  
Nazario Martín
Keyword(s):  
Self Assembly ◽  
Driving Forces ◽  
Electronic Devices ◽  
The Self ◽  
Design Strategies ◽  
Molecular Tweezers ◽  
Molecular Receptors ◽  
Successful Design

The search for molecular receptors capable of forming stable associates with fullerenes is a very active field of research in fullerene chemistry, with the purification from fullerite and the self-assembly of nanoscale electronic devices as driving forces. The construction of bivalent, tweezer-like receptors featuring two recognizing units connected through a spacer is one of the most successful design strategies employed in this field. Here, we present an overview of the most significant examples of these “molecular tweezers” for fullerenes.

Single-Crystal-like Materials by the Self-Assembly of Cube-Shaped Lead Zirconate Titanate (PZT) Microcrystals

Langmuir ◽  
2005 ◽  
Vol 21 (8) ◽  
pp. 3207-3212 ◽  
Author(s):  
Xiangyuan Liu ◽  
Elizabeth F. McCandlish ◽  
Larry E. McCandlish ◽  
Kate Mikulka-Bolen ◽  
Ramamoorthy Ramesh ◽  
...  
Keyword(s):  
Single Crystal ◽  
Lead Zirconate Titanate ◽  
Self Assembly ◽  
Lead Zirconate ◽  
The Self ◽  
Zirconate Titanate
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