Metal ion-induced self-assembly of functionalized 2,6-oligopyridines. 2. Copper-containing double-stranded helicates derived from functionalized quaterpyridine and quinquepyridine: redox state-induced transformations and electron communication in mixed-valence systems

1993 ◽  
Vol 32 (20) ◽  
pp. 4422-4435 ◽  
Author(s):  
Kevin T. Potts ◽  
Majid Keshavarz-K ◽  
Fook S. Tham ◽  
Hector D. Abruna ◽  
Claudia R. Arana
Keyword(s):  
Self Assembly ◽  
Metal Ion ◽  
Redox State ◽  
Mixed Valence

Metal ion-induced self-assembly of functionalized 2,6-oligopyridines. 3. Metal-metal interaction and redox state-induced transformations in double-stranded helicates derived from functionalized quinquepyridine and sexipyridine

1993 ◽  
Vol 32 (20) ◽  
pp. 4436-4449 ◽  
Author(s):  
Kevin T. Potts ◽  
Majid Keshavarz-K ◽  
Fook S. Tham ◽  
Hector D. Abruna ◽  
Claudia Arana
Keyword(s):  
Self Assembly ◽  
Metal Ion ◽  
Redox State ◽  
Metal Interaction ◽  
Metal Metal

Metal ion templated self-assembly of crown ether functionalized perylene bisimide dyes

2015 ◽  
Vol 51 (16) ◽  
pp. 3415-3418 ◽  
Author(s):  
Annike Weißenstein ◽  
Frank Würthner
Keyword(s):  
Crown Ether ◽  
Self Assembly ◽  
Metal Ion ◽  
Perylene Bisimide ◽  
Barium Ion

Barium ion (Ba2+) templated self-assembly of perylene bisimide (PBI) functionalized with 15-crown-5 receptors leads selectively to dimer species.

Square-grid coordination networks of (5,10,15,20-tetra-4-pyridylporphyrinato)zinc(II) in its clathrate with two guest molecules of 1,2-dichlorobenzene: supramolecular isomerism of the porphyrin self-assembly

2009 ◽  
Vol 65 (3) ◽  
pp. m139-m142 ◽  
Author(s):  
Rajesh Koner ◽  
Israel Goldberg
Keyword(s):  
Self Assembly ◽  
Metal Ion ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Coordination Networks ◽  
Guest Molecules ◽  
Square Grid ◽  
Supramolecular Isomerism ◽  
Self Assembled ◽  
Solvent Molecules

The title compound, (5,10,15,20-tetra-4-pyridylporphyrinato)zinc(II) 1,2-dichlorobenzene disolvate, [Zn(C40H24N8)]·2C6H4Cl2, contains a clathrate-type structure. It is composed of two-dimensional square-grid coordination networks of the self-assembled porphyrin moiety, which are stacked one on top of the other in a parallel manner. The interporphyrin cavities of the overlapping networks combine into channel voids accommodated by the dichlorobenzene solvent. Molecules of the porphyrin complex are located on crystallographic inversion centres. The observed two-dimensional assembly mode of the porphyrin units represents a supramolecular isomer of the unique three-dimensional coordination frameworks of the same porphyrin building block observed earlier. The significance of this study lies in the discovery of an additional supramolecular isomer of the rarely observed structures of metalloporphyrins self-assembled directly into extended coordination polymers without the use of external ligand or metal ion auxiliaries.

Columnar Liquid-Crystalline Macrocycles Synthesized via Metal Ion-Assisted Self-Assembly

2018 ◽  
Vol 57 (7) ◽  
pp. 3913-3919 ◽  
Author(s):  
Shin-ichiro Kawano ◽  
Takafumi Murai ◽  
Takahiro Harada ◽  
Kentaro Tanaka
Keyword(s):  
Self Assembly ◽  
Metal Ion ◽  
Liquid Crystalline

scholarly journals Pyramidal Heteroanion-Directed and Reduced MoV-Driven Assembly of Multi-Layered Polyoxometalate Cages

2018 ◽  
Author(s):  
Qi Zheng, ◽  
Manuel Kupper ◽  
Weimin Xuan ◽  
Hirofumi Oki ◽  
Ryo Tsunashima ◽  
...  
Keyword(s):  
Self Assembly ◽  
Electronic Materials ◽  
Electronic Devices ◽  
Mixed Valence ◽  
The Self ◽  
Model Structure ◽  
Redox Titration ◽  
Metal Centers ◽  
Redox Active ◽  
Tetrabutyl Ammonium

The fabrication of redox-active polyoxometalates (POMs) that can switch between multiple states is critical for their application in electronic devices, yet, a sophisticated synthetic methodology is not well developed for such cluster types. Here we describe the heteroanion-directed and reduction-driven assembly of a series of multi-layered POM cages 1-10 templated by 1-3 redox-active pyramidal heteroanions. The heteroanions greatly affect the selfassembly of the resultant POM cages, leading to the generation of unprecedented three-layered peanut-shaped - 4, 7 and 8 - or bulletshaped - 5 and 6 - structures. The introduction of reduced molybdate is essential for the self-assembly of the compounds and results in mixed-metal (W/Mo), and mixed-valence (WVI/MoV) 1-10, as confirmed by redox titration, UV-Vis-NIR, NMR spectroscopy and mass spectrometry. 11, the tetrabutyl ammonium (TBA) salt derivative of the fully oxidized 3, is produced as a model structure for measurements to confirm that 1-10 are a statistical mixture of isostructural clusters with different ratios of W/Mo. Finally, multilayered POM cages exhibit dipole relaxations due to the presence of mixed valence WVI/MoV metal centers, demonstrating their potential uses for electronic materials.

Alkali-Metal-Ion-Directed Self-Assembly of Redox-Active Manganese(III) Supramolecular Boxes

2015 ◽  
Vol 54 (6) ◽  
pp. 2512-2521 ◽  
Author(s):  
Gustavo González-Riopedre ◽  
Manuel R. Bermejo ◽  
M. Isabel Fernández-García ◽  
Ana M. González-Noya ◽  
Rosa Pedrido ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Self Assembly ◽  
Metal Ion ◽  
Alkali Metal Ion ◽  
Redox Active

Cyclic networks of halogen-bonding interactions in molecular self-assemblies: a theoretical N—X...NversusC—X...N investigation

2017 ◽  
Vol 73 (2) ◽  
pp. 179-187
Author(s):  
Ruben D. Parra ◽  
Álvaro Castillo
Keyword(s):  
Electron Density ◽  
Self Assembly ◽  
Metal Ion ◽  
Halogen Atom ◽  
Halogen Bond ◽  
Halogen Bonding ◽  
Nbo Analysis ◽  
Binding Energies ◽  
Cyclic Network ◽  
Ability To Drive

The geometries and energetics of molecular self-assembly structures that contain a sequential network of cyclic halogen-bonding interactions are investigated theoretically. The strength of the halogen-bonding interactions is assessed by examining binding energies, electron charge transfer (NBO analysis) and electron density at halogen-bond critical points (AIM theory). Specifically, structural motifs having intramolecular N—X...N (X= Cl, Br, or I) interactions and the ability to drive molecular self-assemblyviathe same type of interactions are used to construct larger self-assemblies of up to three unit motifs. N—X...N halogen-bond cooperativity as a function of the self-assembly size, and the nature of the halogen atom is also examined. The cyclic network of the halogen-bonding interactions provides a suitable cavity rich in electron density (from the halogen atom lone pairs not involved in the halogen bonds) that can potentially bind an electron-deficient species such as a metal ion. This possibility is explored by examining the ability of the N—X...N network to bind Na+. Likewise, molecular self-assembly structures driven by the weaker C—X...N halogen-bonding interactions are investigated and the results compared with those of their N—X...N counterparts.

Metal Ion-Induced Self-Assembly and Packaging of CCMV Nanocapsules

2018 ◽  
pp. 57-67
Author(s):  
Lise Schoonen ◽  
Mark B. van Eldijk ◽  
Jan C. M. van Hest
Keyword(s):  
Self Assembly ◽  
Metal Ion
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