What does modular mean in chemistry?
Broadly speaking, modularity is the degree to which a system’s components may be separated and recombined, often with the benefit of flexibility and variety in use. Despite these nuances, consistent themes concerning modular systems can be identified.
What is a modular reaction?
Modular chemical reactions can be used for three different purposes in macromolecular chemistry: (i) as a polymerization step in a chain- or step-growth polymerization, (ii) as a reaction for the chain-end, side-chain or site-specific modification of preformed macromolecules and (iii) as a ligation tool for the …
What is SBU in MOF?
Secondary building units (SBUs) are the key components of metal–organic frameworks (MOFs) that help to build potentially porous periodic networks by linking multitopic organic ligands. Hence, metal SBUs are critical for determining the underlying topology of MOFs.
What is secondary building block?
❖ Secondary building blocks: assets. located in neighborhood or community. but controlled by those outside the. community. ❖ Local Institutions.
What is the module?
Definition of module 1 : a standard or unit of measurement. 2 : the size of some one part taken as a unit of measure by which the proportions of an architectural composition are regulated. 3a : any in a series of standardized units for use together: such as. (1) : a unit of furniture or architecture.
What does modular mean in Java?
What is Modularity in Java? A module is more like an independent partition of software that is communicated through an interface. Modularity explores the creation of a program by using different modules than a single legacy architecture.
Is click chemistry Green?
The notion of click chemistry was introduced in 2001 by Barry Sharpless as a tool for designing new molecular entities. Owing to these outstanding properties, click reactions have emerged as an extremely facile, green, and useful methodology for the synthesis of myriads of structurally distinguished molecules.
Why is iT called click reaction?
“Click Chemistry” is a term that was introduced by K. B. Sharpless in 2001 to describe reactions that are high yielding, wide in scope, create only byproducts that can be removed without chromatography, are stereospecific, simple to perform, and can be conducted in easily removable or benign solvents. …
How many MOFs are there?
Millions of distinct metal-organic frameworks (MOFs) can be made by combining metal nodes and organic linkers. At present, over 90,000 MOFs have been synthesized and over 500,000 predicted.
What is an SBU chemistry?
Secondary building units (SBUs)—the turning point in the development of metal-organic frameworks (MOFs) Such crystalline, extended structures are constructed by stitching together inorganic polynuclear clusters known as secondary building units (SBUs) and organic linkers via strong bonds.
What is organic linkers?
The organic units (linkers/bridging ligands) consist of carboxylates, or anions, such as phosphonate, sulfonate, and heterocyclic compounds (Figures 2 and 3). The inorganic units are the metal ions or clusters termed as SBUs.
What is secondary building?
Secondary building units (SBUs) are molecular complexes and cluster entities in which ligand coordination modes and metal coordination environments can be utilized in the transformation of these fragments into extended porous networks using polytopic linkers (1,4-benzenedicarboxylate, 1,3,5,7-adamantanetetracarboxyl- …
What is modular click chemistry?
Modular click chemistry libraries for functional screens using a diazotizing reagent Click chemistry is a concept in which modular synthesis is used to rapidly find new molecules with desirable properties1.
Can secondary building units be a basis for modular chemistry?
Modular Chemistry: Secondary Building Units as a Basis for Modular Chemistry: Secondary Building Units as a Basis for the Design of Highly Porous and Robust Metal-Organic Carboxylate Frameworks MOHAMED EDDAOUDI,†DAVID B. MOLER,†
Why is the construction of extended solids from molecular building blocks important?
The construction of extended solids from molecular building blocks is now of great interest due to the advantages it offers for the design of materials.