12.9.2: Template Reactions - Chemistry LibreTexts
A template reaction is one in which a metal ion acts as a template to bring reactive sites in close proximity. In the absence of the metal ion, the same reaction would proceed to form a different product. An example of the template effect is the dialykation of nickel dithiolate (Figure \(\PageIndex{1}\)).
The utility of the template effect in metal-organic frameworks
2019年7月15日 · This review details the emergence and continued study of the template effect in metal-organic frameworks (MOFs) with emphasis upon (i) reports of template-directed synthesis of MOFs and (ii) using MOFs as hosts to template the formation of new guest species.
In 1977, Mandolini and Masci reported clear kinetic evidence that a template effect was important to the cyclization of o-hydroxyphenyl-3 ,6,9, 12-tetraoxa-14-bromotetra decyl ethers.
Chemical templates - PMC - National Center for Biotechnology …
2014年7月22日 · A chemical template controls a reaction in such a way that from a multitude of possible products a specific one is preferentially or even exclusively formed. The template can influence the reaction in a stoichiometric or a catalytic way, it can be reused or remain in the product as an integral part.
Role of the kinetic template effect in the syntheses of non …
2013年3月22日 · Template effect plays an important role in coordination chemistry. It can be divided in two main effects. First, a metal ion is able to hold reactive groups in a position so that reaction between two functional groups may occur. This …
The active template approach to interlocked molecules
2017年8月9日 · The active template approach to interlocked molecules uses metal ions to both pre-organize reaction components and catalyse the final covalent bond formation that captures the interlocked...
The Template Effect - SpringerLink
The success of these large-ring intramolecular S N 2 reactions is generally attributed to the operation of a “template” effect during crown synthesis.
Bifurcation of self-assembly pathways to sheet or cage controlled …
2019年11月13日 · Here we report a kinetic template effect in a self-assembled cage composed of flexible ditopic ligands and Pd (II) ions. Without template anion, a micrometer-sized sheet is kinetically trapped...
Template Effect and Ligand Substitution Methods for the …
2014年11月6日 · The first part of the experiment explores the template synthesis of a trans-bis-acetonitrile iron complex with a tetradentate ligand. The product from the first laboratory period is used as the starting material in the second laboratory period that focuses on the synthesis of a green catalyst mimic.
The utility of the template effect in metal-organic frameworks
2019年7月15日 · This review details the emergence and continued study of the template effect in metal-organic frameworks (MOFs) with emphasis upon (i) reports of template-directed synthesis of MOFs and (ii) using MOFs as hosts to template the formation of new guest species.
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