scholarly journals Supramolecular Chemistry and Self-Organization: A Veritable Playground for Catalysis

Catalysts ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 163 ◽  
Author(s):  
Loïc Leclercq ◽  
Grégory Douyère ◽  
Véronique Nardello-Rataj
Keyword(s):  
Supramolecular Chemistry ◽  
Intermolecular Interactions ◽  
Noncovalent Interactions ◽  
Directed Assembly ◽  
Building Blocks ◽  
Reaction Rates ◽  
Supramolecular Assemblies ◽  
Self Organization ◽  
Catalytic Systems ◽  
Molecular Building Blocks

The directed assembly of molecular building blocks into discrete supermolecules or extended supramolecular networks through noncovalent intermolecular interactions is an ongoing challenge in chemistry. This challenge may be overcome by establishing a hierarchy of intermolecular interactions that, in turn, may facilitate the edification of supramolecular assemblies. As noncovalent interactions can be used to accelerate the reaction rates and/or to increase their selectivity, the development of efficient and practical catalytic systems, using supramolecular chemistry, has been achieved during the last few decades. However, between discrete and extended supramolecular assemblies, the newly developed “colloidal tectonics” concept allows us to link the molecular and macroscopic scales through the structured engineering of colloidal structures that can be applied to the design of predictable, versatile, and switchable catalytic systems. The main cutting-edge strategies involving supramolecular chemistry and self-organization in catalysis will be discussed and compared in this review.

Case history of porphyrin J-aggregates: a personal point of view

2009 ◽  
Vol 13 (04n05) ◽  
pp. 461-470 ◽  
Author(s):  
Joaquim Crusats ◽  
Zoubir El-Hachemi ◽  
Carlos Escudero ◽  
Josep M. Ribó
Keyword(s):  
Supramolecular Chemistry ◽  
Self Assembly ◽  
Building Blocks ◽  
Point Of View ◽  
Water Soluble ◽  
The Self ◽  
Molecular Building Blocks ◽  
History Of ◽  
J Aggregates ◽  
The University

The formation and structure of the title aggregates are paradigms of the self-assembly of amphiphilic molecular building blocks in supramolecular chemistry. This review summarizes the research in the University of Barcelona on the homoassociation of the water soluble meso 4-sulfonatophenyl-and phenyl substituted porphyrins.

Recent aspects of self-oscillating polymeric materials: designing self-oscillating polymers coupled with supramolecular chemistry and ionic liquid science

2014 ◽  
Vol 16 (22) ◽  
pp. 10388-10397 ◽  
Author(s):  
Takeshi Ueki ◽  
Ryo Yoshida
Keyword(s):  
Ionic Liquid ◽  
Supramolecular Chemistry ◽  
Polymeric Materials ◽  
Building Blocks ◽  
Covalent Bonds ◽  
Spatiotemporal Structure ◽  
Molecular Building Blocks ◽  
Recent Developments

Herein, we summarise the recent developments in self-oscillating polymeric materials based on the concepts of supramolecular chemistry, where aggregates of molecular building blocks with non-covalent bonds evolve the temporal or spatiotemporal structure.

scholarly journals Towards Complex Matter: Supramolecular Chemistry and Self-organization

2009 ◽  
Vol 17 (2) ◽  
pp. 263-280 ◽  
Author(s):  
Jean-Marie Lehn
Keyword(s):  
Supramolecular Chemistry ◽  
Self Assembly ◽  
Building Blocks ◽  
Intermolecular Forces ◽  
Self Organization ◽  
Irreversible Processes ◽  
Continuous Change ◽  
Supramolecular Systems ◽  
Molecular Information ◽  
Complex Matter

Chemistry has developed from molecular chemistry, mastering the combination and recombination of atoms into increasingly complex molecules, to supramolecular chemistry, harnessing intermolecular forces for the generation of informed supramolecular systems and processes through the implementation of molecular information carried by electromagnetic interactions. Supramolecular chemistry is actively exploring systems undergoing self-organization, i.e. systems capable of spontaneously generating well-defined functional supramolecular architectures by self-assembly from their components, on the basis of the molecular information stored in the covalent framework of the components and read out at the supramolecular level through specific molecular recognition interactional algorithms, thus behaving as programmed chemical systems. Supramolecular entities as well as molecules containing reversible bonds are able to undergo a continuous change in constitution by reorganization and exchange of building blocks. This capability defines a Constitutional Dynamic Chemistry (CDC) on both the molecular and supramolecular levels. CDC introduces a paradigm shift with respect to constitutionally static chemistry. It takes advantage of dynamic constitutional diversity to allow variation and selection and thus adaptation. The merging of the features of supramolecular systems – information and programmability; dynamics and reversibility; constitution and structural diversity – points towards the emergence of adaptive chemistry. A further development will concern the inclusion of the arrow of time, i.e. of non-equilibrium, irreversible processes and the exploration of the frontiers of chemical evolution towards the establishment of evolutive chemistry, where the features acquired by adaptation are conserved and transmitted. In combination with the corresponding fields of physics and biology, chemistry thus plays a major role in the progressive elaboration of a science of informed, organized, evolutive matter, a science of complex matter.

Directed assembly of metal–organic cubes from deliberately predesigned molecular building blocks

2004 ◽  
pp. 2806-2807 ◽  
Author(s):  
Yunling Liu ◽  
Victor Kravtsov ◽  
Rosa D. Walsh ◽  
Pankaj Poddar ◽  
Hariharan Srikanth ◽  
...  
Keyword(s):  
Directed Assembly ◽  
Building Blocks ◽  
Molecular Building Blocks ◽  
Metal Organic

Cocrystallization of pyrogallol[4]arenes with target molecules

2011 ◽  
Author(s):  
◽  
Drew A. Fowler
Keyword(s):  
Supramolecular Chemistry ◽  
Double Helix ◽  
Active Pharmaceutical Ingredient ◽  
Building Blocks ◽  
New Host ◽  
Fluorescent Reporter ◽  
University Of Missouri ◽  
Molecular Building Blocks ◽  
Target Molecules ◽  
Humphry Davy

[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Supramolecular chemistry, in its simplest and broadest description, is the chemistry of intermolecular interactions or chemistry of the noncovalent bond. Supramolecular chemistry is rooted in discoveries, such as the chlorine clathrate found in 1810 by Sir Humphry Davy, and concepts, such as coordination chemistry (1893-Werner) and the lock-and-key concept (1894-Fischer). The broad definition of supramolecular chemistry can be applied to a vast subject range including naturally occurring assemblies, such as proteins and the double helix of DNA. Today, a key interest of supramolecular chemists is the design of functional multi-component systems constructed from smaller molecular building blocks. This research focuses specifically on the supramolecular chemistry of a family of macrocycles called calixarenes, specifically the pyrogallol derivatives pyrogallol[4]arenes. Due to the bowl-like shape of the macrocycles and the presence of 12 upper-rim hydroxyls, pyrogallol[4]arenes have been found to exhibit a number of interesting supramolecular properties. The following dissertation contains the description of advances that have been made using these macrocycles. This work illustrates the expansion of a project dealing with the cocrystallization, and encapsulation of fluorescent reporter molecules with a variety of pyrogallol[4]arenes in different solvent systems. The description of a number of crystal structures that is offered will illustrate how, through thoughtful experimentation, the successful design of a new host molecular capsule was carried out and broadened to include a number of guest molecules. The target molecules have also been expanded from the fluorescent reporters to a variety of possible targets molecules. The solid-state structures discussed include multiple cocrystals of gabapentin, an active pharmaceutical ingredient, and structures containing the organometallic sandwich complex ferrocene.

scholarly journals Designing molecular building blocks for the self-assembly of complex porous networks

2019 ◽  
Vol 4 (3) ◽  
pp. 644-653 ◽  
Author(s):  
T. Ann Maula ◽  
Harold W. Hatch ◽  
Vincent K. Shen ◽  
Srinivas Rangarajan ◽  
Jeetain Mittal
Keyword(s):  
Intermolecular Interactions ◽  
Self Assembly ◽  
Building Block ◽  
Building Blocks ◽  
The Self ◽  
Porous Networks ◽  
Molecular Building Blocks

We leverage building block geometry and intermolecular interactions to facilitate self-assembly into ordered, heteroporous networks.

Hierarchical design of nanostructured materials based on polyoxometalates

2009 ◽  
Vol 81 (12) ◽  
pp. 2369-2376 ◽  
Author(s):  
Noritaka Mizuno ◽  
Sayaka Uchida ◽  
Kazuhiro Uehara
Keyword(s):  
Nanostructured Materials ◽  
Building Blocks ◽  
The Self ◽  
Self Organization ◽  
Materials Chemistry ◽  
Hierarchical Design ◽  
Crystalline Materials ◽  
Molecular Building Blocks ◽  
Organization Process ◽  
Key Topics

The construction of nanostructured materials with advanced functions by the self-organization of molecular building blocks is one of the key topics in modern materials chemistry. This review describes our concept of the hierarchical design of polyoxometalate (POM)-based compounds with nanosized spaces: (1) syntheses of building blocks (POMs and counter cations), (2) directing the self-organization of building blocks to form crystalline materials with nanosized spaces, and (3) kinetic control of the self-organization process to introduce nanosized space into the dense nonporous crystal, with emphasis on (2). Our recent results on the construction of nanosized spaces within the POM-based compounds with controlled size, volume, shape, and affinity, and their functions are presented.

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