scholarly journals Effect of the proximal secondary sphere on the self-assembly of tetrahedral zinc-oxo clusters

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Michał Terlecki ◽  
Iwona Justyniak ◽  
Michał K. Leszczyński ◽  
Janusz Lewiński

AbstractMetal-oxo clusters can serve as directional and rigid building units of coordination and noncovalent supramolecular assemblies. Therefore, an in-depth understanding of their multi-faceted chemistry is vital for the development of self-assembled solid-state structures of desired properties. Here we present a comprehensive comparative structural analysis of isostructural benzoate, benzamidate, and new benzamidinate zinc-oxo clusters incorporating the [O,O]-, [O,NH]- and [NH,NH]-anchoring donor centers, respectively. We demonstrated that the NH groups in the proximal secondary coordination sphere are prone to the formation of intermolecular hydrogen bonds, which affects the packing of clusters in the crystal structure. Coordination sphere engineering can lead to the rational design of new catalytic sites and novel molecular building units of supramolecular assemblies.

2014 ◽  
Vol 12 (40) ◽  
pp. 7932-7936 ◽  
Author(s):  
Benjamin M. Schulze ◽  
Davita L. Watkins ◽  
Jing Zhang ◽  
Ion Ghiviriga ◽  
Ronald K. Castellano

Reported is characterization of the self-assembly of π-conjugated oligomers, molecules studied recently in photovoltaic devices, using variable temperature diffusion ordered spectroscopy; the approach has allowed estimation of assembly size, shape, and molecularity.


2022 ◽  
Author(s):  
Jamie M. Cameron ◽  
Geoffroy Guillemot ◽  
Theodor Galambos ◽  
Sharad S. Amin ◽  
Elizabeth Hampson ◽  
...  

Organic–inorganic hybrid polyoxometalates are versatile building blocks for the self-assembly of functional supramolecular materials.


2019 ◽  
Vol 21 (21) ◽  
pp. 11242-11258
Author(s):  
Valery Andrushchenko ◽  
Walter Pohle

IR spectroscopy paired with calculations reveals that structurally similar amphiphiles ODA and DOG form very different supramolecular assemblies.


RSC Advances ◽  
2016 ◽  
Vol 6 (8) ◽  
pp. 6164-6170 ◽  
Author(s):  
Francisco Ramón Fortea-Pérez ◽  
Nadia Marino ◽  
Giovanni de Munno ◽  
Donatella Armentano ◽  
Miguel Julve ◽  
...  

The reaction of aqueous [PdCl4]2−withN-4-Xphenyloxamate ligands (X = F, Cl, Br) afforded three non-isostructural compounds exhibiting intriguing diverse supramolecular assemblies driven by hydrogen bonds and/or halogen⋯halogen interactions.


2018 ◽  
Vol 47 (35) ◽  
pp. 12308-12317 ◽  
Author(s):  
Oxana Kotova ◽  
Steve Comby ◽  
Komala Pandurangan ◽  
Floriana Stomeo ◽  
John E. O'Brien ◽  
...  

The formation, stability constants and luminescence of chiral Eu(iii) supramolecular assemblies were studied in CH3CN.


2021 ◽  
Author(s):  
Zsombor Miskolczy ◽  
Mónika Megyesi ◽  
Stephan Sinn ◽  
Frank Biedermann ◽  
Laszlo Biczok

Very few information is available for the kinetics of the self-assembly and dissociation of optically silent building blocks despite the importance of such data in the rational design of tailor-made...


2005 ◽  
Vol 58 (6) ◽  
pp. 472 ◽  
Author(s):  
Virgil Percec ◽  
Andrés Dulcey ◽  
Mihai Peterca ◽  
Monica Ilies ◽  
Yoshiko Miura ◽  
...  

This manuscript reports the synthesis and the self-assembly of (4-3,4,5-3,5)nG2-CH2-Boc-l-Tyr-l-Ala-OMe dendritic dipeptides (n = 12, 16). These dendritic dipeptides self-assemble both in solution and in solid states into helical porous supramolecular columns that mimic porous transmembrane proteins. These supramolecular assemblies provide also a new class of tubular supramolecular polymers.


2020 ◽  
Author(s):  
Laurens Vandebroek ◽  
Hiroki Noguchi ◽  
Kenichi Kamata ◽  
Jeremy R. H. Tame ◽  
Luc Van Meervelt ◽  
...  

AbstractThe controlled formation of protein supramolecular assemblies is challenging but it could provide an important route for the development of hybrid biomaterials. In this work, we demonstrate formation of well-defined complexes formed between the 8-fold symmetrical designer protein Tako8 and soluble metal-oxo clusters from the family of Anderson-Evans, Keggin and ZrIV- substituted Wells-Dawson polyoxometalates. A combination of x-ray crystallography and solution studies showed that metal-oxo clusters are able to serve as linker nodes for the bottom-up creation of protein based supramolecular assemblies. Our findings indicate that clusters with larger size and negative charge are capable of modulating the crystal packing of the protein, highlighting the need for a size and shape complementarity with the protein node for optimal alteration of the crystalline self-assembly.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhenyu Yang ◽  
Chunyang Yu ◽  
Junjie Ding ◽  
Lihua Chen ◽  
Huiyu Liu ◽  
...  

AbstractA variety of organic cages with different geometries have been developed during the last decade, most of them exhibiting a single cavity. In contrast, the number of organic cages featuring a pair of cavities remains scarce. These structures may pave the way towards novel porous materials with emergent properties and functions.We herein report on rational design of a three-dimensional hexaformyl precursor 1, which exhibits two types of conformers, i.e. Conformer-1 and -2, with different cleft positions and sizes. Aided by molecular dynamics simulations, we select two triamino conformation capturers (denoted CC). Small-sized CC-1 selectively capture Conformer-1 by matching its cleft size, while the large-sized CC-2 is able to match and capture both conformers. This strategy allows the formation of three compounds with twin cavities, which we coin diphane. The self-assembly of diphane units results in superstructures with tunable proton conductivity, which reaches up to 1.37×10-5 S cm-1.


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