Download e-book for iPad: Organometallic Dendrimers with Transition Metals by Cuadrado I., Moran M., Alonso B.

By Cuadrado I., Moran M., Alonso B.

Dendrimers are a unique category of macromolecules whose hyperbranched symmetrical architectures and targeted homes fascinate scientists from a variety of disciplines. some of the most energetic present parts of study within the chemistry of dendrimers is the incorporation of steel centres into such constructions, hence leading to well-defined molecules with new valuable houses. This evaluation summarises our contributions within the constructing box of organo-transition steel dendrimers, including correct works of professional teams in this box. in the course of the article, the bogus elements are specially emphasized. Likewise, the electrochemical behaviour exhibited through new households of organometallic dendrimers and a few in their proper purposes are highlighted right here.

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Metalation of this dendrimer by reaction with [Pd(CH3CN)4](BF4)2 gives the dendritic macromolecule 92, which contains four well-separated palladium complexes bound to a central silicon atom. Electrochemical studies showed that this metalated dendrimer catalyses the electrochemical reduction of CO2 to CO. Interestingly, on the basis of the comparison of the catalytic activity for electrochemical reduction of CO2 exhibited by 92, with that observed for related palladium organophosphine dendrimers without organosilicon frameworks, the authors noted relationships between catalytic properties and dendrimer structure.

A ferrocenyl dendrimer used for asymmetric catalysis reported by Togni and Pugin. 5. Conclusions The research on dendrimers is currently undergoing an exponential growth. The dendritic molecules described above have been reported in the course of the last six years, and constitute an important advance for both fields organometallics and dendrimers. Organometallic dendrimers combine the unique feature of the dendrimer architecture with the rich chemistry exhibited by organo-transition metal complexes and have already demonstrated to be useful for a range of interesting applications such as dendrimeric catalysts, as electron-transfer mediators in redox catalysis, molecular recognition, and electrochemical biosensors, as dendritic liquid crystalline materials, as well as guest templates for multisite inclusion complexation.

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Organometallic Dendrimers with Transition Metals by Cuadrado I., Moran M., Alonso B.


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