Ion Pair Driven Self-Assembly of a Flexible Bis-Zwitterion in Polar Solution:  Formation of Discrete Nanometer-Sized Cyclic Dimers

2006 ◽  
Vol 128 (5) ◽  
pp. 1430-1431 ◽  
Author(s):  
Carsten Schmuck ◽  
Thomas Rehm ◽  
Franziska Gröhn ◽  
Katja Klein ◽  
Frank Reinhold
Keyword(s):  
Self Assembly ◽  
Ion Pair ◽  
Polar Solution ◽  
Solution Formation

Capillary flows and self-assembly of porous hydrate structures

2012 ◽  
Vol 9 (1) ◽  
pp. 22-25
Author(s):  
S.V. Amel’kin ◽  
D.Ye. Igoshin
Keyword(s):  
Experimental Data ◽  
Aqueous Solution ◽  
Self Assembly ◽  
Capillary Flow ◽  
Secondary Crystallization ◽  
Assembly Model ◽  
Physical Processes ◽  
Good Correspondence ◽  
Solution Formation ◽  
Capillary Flows

A self-assembly model for porous hydrate structures is proposed, which takes into account the sequence of basic physical processes: hydrate growth on the surface of the aqueous solution, formation of islet structure, capillary flow, separation and transfer of secondary crystallization nuclei to the meniscus. The model was studied within the cellular automata method. A good correspondence between the results of the simulation and the experimental data is obtained.

Self-Assembly of Ion-Pair Complexes

2007 ◽  
Vol 7 (10) ◽  
pp. 2112-2116 ◽  
Author(s):  
Wei Lee Leong ◽  
Jagadese J. Vittal
Keyword(s):  
Self Assembly ◽  
Ion Pair

Ion-Pair Recognition by Nucleoside Self-Assembly: Guanosine Hexadecamers Bind Cations and Anions

2001 ◽  
Vol 40 (15) ◽  
pp. 2827-2831 ◽  
Author(s):  
Xiaodong Shi ◽  
James C. Fettinger ◽  
Jeffery T. Davis
Keyword(s):  
Self Assembly ◽  
Ion Pair

Analogy to a Chinese knot in an ion-pair copper(II)–neodymium(III) complex based on a hexadentate Schiff base condensation product of 5-bromosalicylaldehyde and glycylglycine

2013 ◽  
Vol 69 (4) ◽  
pp. 376-379
Author(s):  
Li-Qing Xu ◽  
Li-Ping Lu ◽  
Miao-Li Zhu
Keyword(s):  
Schiff Base ◽  
Self Assembly ◽  
Condensation Product ◽  
Ion Pair ◽  
Three Dimensions ◽  
Water Molecules ◽  
Solvent Water ◽  
Square Planar ◽  
Jahn Teller ◽  
Pentadentate Ligands

Self-assembly of CuCl2, NdCl3, 5-bromosalicylaldehyde and glycylglycine yields the ion-pair copper(II)–neodymium(III) complex, poly[[decaaquabis[μ3-2-({2-[(5-bromo-2-oxidobenzylidene)amino]acetyl}azanidyl)acetato]bis[μ2-2-({2-[(5-bromo-2-oxidobenzylidene)amino]acetyl}azanidyl)acetato]tetracopper(II)dineodymium(III)] bis{[2-({2-[(5-bromo-2-oxidobenzylidene)amino]acetyl}azanidyl)acetato]cuprate(II)} tetradecahydrate], {[Cu4Nd2(C11H8BrN2O4)4(H2O)10][Cu(C11H8BrN2O4)]2·14H2O}n. The anion is planar and mononuclear, showing an approximately square-planar coordination of the metal atom, while the cation is a hexanuclear centrosymmetric transition metal–lanthanide (Cu–Nd) heterometallic complex, with the independent copper cations in square-planar and square-pyramidal coordinations. The asymmetric unit comprises one half of this cation, one anion and seven solvent water molecules. The positions of the six metal centres in the cation reproduce a Chinese knot arrangement. The dipeptidic Schiff base releases three H atoms and can act as a tetradentate, a pentadentate or a hexadentate ligand. Longer interactions between the pentadentate ligands and the Jahn–Teller CuIIcation link the hexanuclear aggregates into cationic chains in the [010] direction in which 14- and 22-membered subloops occur. Extensive hydrogen bonding in three dimensions involves both the coordinated and the solvent water molecules.

Chirality induction in a dibenzo-30-crown-10 congener promoted by an ion-pair coordinated self-assembly

2002 ◽  
Vol 27 (2) ◽  
pp. 221-223 ◽  
Author(s):  
Tomokazu Tozawa ◽  
Tatsuya Tachikawa ◽  
Sumio Tokita ◽  
Yuji Kubo
Keyword(s):  
Self Assembly ◽  
Ion Pair ◽  
Chirality Induction

Experimental Evidence for Self-Assembly of CeO2 Particles in Solution: Formation of Single-Crystalline Porous CeO2 Nanocrystals

2011 ◽  
Vol 116 (1) ◽  
pp. 242-247 ◽  
Author(s):  
Hui Ru Tan ◽  
Joyce Pei Ying Tan ◽  
Chris Boothroyd ◽  
Thomas W. Hansen ◽  
Yong Lim Foo ◽  
...  
Keyword(s):  
Experimental Evidence ◽  
Self Assembly ◽  
Single Crystalline ◽  
Solution Formation

Ion-pair induced self-assembly in aqueous solvents

2010 ◽  
Vol 39 (10) ◽  
pp. 3597 ◽  
Author(s):  
Thomas H. Rehm ◽  
Carsten Schmuck
Keyword(s):  
Self Assembly ◽  
Ion Pair

Self-assembly prepared using an ion pair of poly(ethylene imine) and (phenylthio) acetic acid as a drug carrier for oxidation, temperature, and NIR-responsive release

2021 ◽  
Vol 415 ◽  
pp. 128954
Author(s):  
Tae Hoon Kim ◽  
Madhusudhan Alle ◽  
Soo Chan Park ◽  
Fanyu Zhao ◽  
Wenting Long ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Self Assembly ◽  
Drug Carrier ◽  
Ion Pair ◽  
Oxidation Temperature ◽  
Ethylene Imine ◽  
Poly Ethylene

scholarly journals X-Ray Reflectometry Study of Self-Assembled Ionic Nanolayers

2012 ◽  
Vol 2012 ◽  
pp. 1-5
Author(s):  
Szymon Jasiecki ◽  
Jarosław Serafińczuk ◽  
Teodor Gotszalk ◽  
Grzegorz Schroeder
Keyword(s):  
Self Assembly ◽  
Ion Pair ◽  
Multilayered Structures ◽  
X Ray ◽  
Sequential Deposition ◽  
Assembly Technique ◽  
Self Assembled ◽  
Oppositely Charged ◽  
Macrocyclic Molecules ◽  
Polymeric Structures

The self-assembly technique has been applied for the fabrication of thin films including macrocyclic molecules. These multilayered structures, grown by sequential deposition of oppositely charged molecules, were characterised with X-ray reflectometry. The data obtained indicate regular thickness of ion pair layers formed regardless of the number of depositions made as well as the number of ion groups occurring in the molecule. Savitzky-Golay algorithm was used for the calculation of the layer thickness. Formation of self-assembled multilayers (SAMs) occurs not only for polymeric structures but also for small ionic compound systems and results from the electrostatic interaction of many strongly dissipated charges on the whole structure of the molecule.

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