Organo-iron mediated synthesis of functional dendrimers with 1 → 3 connectivity

Astruc, Didier; Ruiz, Jaimé

doi:10.1016/j.jorganchem.2011.03.011

Cited by 4 publications

(2 citation statements)

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“…[26][27][28][29][30][31][32][33][34] The past several years have witnessed increased interest in the general topic of metallodendrimers, particularly in relation to their future nanotechnological applications. 32,[35][36][37] Thus, projected research directions should build on the melding of classical synthetic strategies with materials science protocols to fine-tune bulk and localized supramolecular properties to specific tasks and to assemble macromolecular infrastructures capable of functioning alone or in concert within materials at composite interfaces. The art of macromolecular construction has evolved to include utilitarian composite materials; whereby, interdependent components are precisely matched for the desired physicochemical properties.…”

Section: George R Newkomementioning

confidence: 99%

From 1 → 3 dendritic designs to fractal supramacromolecular constructs: understanding the pathway to the Sierpiński gasket

2015

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The iterative synthetic protocols used for dendrimer construction were developed based on the desire to easily craft highly branched macromolecules with ideally an exact mass and tailored functionality. Inspired by arboreal design and precursors of the utilitarian macromolecules known as dendrimers today, our first examples employed predesigned, 1 → 3 or 1 → (1 + 2) C-branched, building blocks. Physical characteristics of the dendrimers, including their globular shapes, excellent solubility, and demonstrated aggregation, revealed the inherent supramolecular potential. The architecture that is characteristic of dendritic materials also exhibits obvious fractal qualities based on self-similar, repetitive, branched frameworks. Thus, both the fractal design and supramolecular aspects of these constructs are suggestive of a larger field of fractal materials that incorporate repeating geometries and are derived by complementary building block recognition and assembly. Use of 〈terpyridine-M(2+)-terpyridine〉 connectivity for the sides and tuned directed organic vertices has opened the door to other types of novel materials. This approach also circumvents the nonideality of dendrimers, since the heteroleptic, one-step, spontaneous self-assembly process facilitates quantitative outcomes.

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Section: George R Newkomementioning

confidence: 99%

From 1 → 3 dendritic designs to fractal supramacromolecular constructs: understanding the pathway to the Sierpiński gasket

2015

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“…The solar energy supplied to the system accounts for a low percentage: 3.3% solar photovoltaic and 2.2% solar thermal. Furthermore, the latter still has a low degree of economic maturity, due to the levelized cost of energy (LCOE) of between $98 and $181 [35]. This cost is far from the current photovoltaic LCOE of $40 − $46.…”

Section: Sustainability 2019 11 X For Peer Review 25 Of 35mentioning

confidence: 99%

Solar Energy Production for a Decarbonization Scenario in Spain

2019

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Solar energy is one of the most promising sources of energy that could be used to address distributed supply problems. Global warming and decarbonization are significant global concerns, particularly for countries that are not fossil fuel providers. This paper presents a study focused on Spain, a country with a favorable location with respect to horizontal irradiance. The study addresses the future energy demand forecast and how photovoltaic energy could supply an important part of electricity needs. Our approach focuses on two analyses. First, several traditional statistical techniques are discussed in order to obtain a model that best suits Spanish energy demand forecasts for the future years. Different algorithms are compared in order to determine which is the most appropriate for the considered purpose. Second, the evolution of solar photovoltaic technology in Spain is analyzed. The latitude of Spanish cities makes them suitable for utilizing this kind of technology. In this sense, seasonal and monthly trends are identified with high levels of detail, considering a large historical dataset. The increase of the capacity of electricity generation based on this procedure is evaluated. Finally, a discussion about matching electricity demand forecasts and photovoltaic production is offered. Considering the selected model for the photovoltaic power of Spain, from 5 to 42 GW in 2030, the Spanish production is determined as 81 TWh. The obtained results suggest that a possible energy transition is feasible. However, some challenges have to be considered, such us the design of an effective strategy to store excess energy produced when generation is higher than electricity demand. In this way, the electrical distribution system could be fed by the stored energy when solar energy production is deficient.

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