Porous materials, supramolecular

While modeling the structure and properties of porous materials one usually is interested in structural properties of a desirable hierarchical level. For example, for chemical properties the molecular structure is major, and the specific adsorption and catalytic properties are guided by the structure and composition of particle surface. Diffusion permeability is determined by the supramolecular... 

Since the discovery of the M41S materials with regular mesopore structure by Mobils scientists [1], many researchers have reported on the synthetic method, characterization, and formation mechanism. Especially, the new concept of supramolecular templating of molecular aggregates of surfactants, proposed as a key step in the formation mechanism of these materials, has expanded the possibility of the formation of various mesoporous structures and gives us new synthetic tools to engineer porous materials [2],... 

Abstract. The transition from a variety of scientific bases of preparation of porous materials (adsorbents, catalysts, etc.) to a uniform fundamental knowledge is discussed. This transition is based on allocation of two different but general levels of porous materials science molecular (atomic) and supramolecular (textural). Fundamental relationships and laws are discussed in the application of porous materials for catalysis and adsorbents with respect to texture and structure. 

Hydrogen bonds (H-bonds) are ideal noncovalent interactions to construct supramolecular nanoporous architectures since they are highly selective and directional [16]. H-bonds are formed when a donor with an available acidic hydrogen atom interacts with an acceptor that carries available nonbonding electron lone pairs. The strength of the H-bond depends mainly on the solvent and number and sequence of the H-bond donors and acceptors. Various supramolecular polymer materials have been developed which use H-bonds as structural element to position molecules. After removal of these molecular templates, a porous material is obtained to fabricate molecule specific systems. 

Nanocasting Strategies and Porous Materials, p. 950 Self-Assembly Definition and Kinetic and Thermodynamic Considerations, p. 1248 Supramolecular Polymers, p. 1443 Suifactants, Parti Fundamentals, p. 1458 Sulfactants, Part II Applications, p. 1470... 

Nanocasting Strategies and Porous Materials, p. 950 Protein Supramolecular Chemistry, p. 1161 Self-Assembling Catenanes, p. 1240 Self-Assembly in Biochemistry, p. 1257... 

Metal—carboxylato—nucleobase systems From supramolecular assemblies to 3D porous material 13CCR2716. 

We described the development of calixarenes and pillarenes on surfaces and the applications of these hybrid materials. The selected surfaces include NPs, metal surface. Si surface, electrode, porous materials, and carbon materials. These multivariant hybrid materials combine the supramolecular host-guest properties of calixarene/pillarene hosts with the unique surface properties of other entities, expand the applications in recognition, stabilization, self-assembly, dispersion, electrode, controlled drug release, sensing, separation and absorption. This design principle holds great promise for the design and application of new desired materials in future. 

---