scholarly journals Dimers of pyrrolo-annelated indenofluorene-extended tetrathiafulvalenes – large multiredox systems

RSC Advances ◽  
2020 ◽  
Vol 10 (26) ◽  
pp. 15030-15033
Author(s):  
Line Broløs ◽  
Mogens Brøndsted Nielsen
Keyword(s):  
Building Block ◽  
Redox Active

A new pyrrolo-annelated indenofluorene-extended tetrathiafulvalene building block was developed and employed in N-arylation reactions for construction of redox-active dimeric scaffolds.

ChemInform Abstract: [V16O38(CN)]9-: A Soluble Mixed-Valence Redox-Active Building Block with Strong Antiferromagnetic Coupling.

ChemInform ◽  
2012 ◽  
Vol 43 (45) ◽  
pp. no-no
Author(s):  
Tony D. Keene ◽  
Deanna M. D'Alessandro ◽  
Karl W. Kraemer ◽  
Jason R. Price ◽  
David J. Price ◽  
...  
Keyword(s):  
Building Block ◽  
Mixed Valence ◽  
Antiferromagnetic Coupling ◽  
Redox Active

scholarly journals Generation of Bis(ferrocenyl)silylenes from Siliranes

Molecules ◽  
2020 ◽  
Vol 25 (24) ◽  
pp. 5917
Author(s):  
Yang Pan ◽  
Shogo Morisako ◽  
Shinobu Aoyagi ◽  
Takahiro Sasamori
Keyword(s):  
Transition Metal ◽  
Building Block ◽  
Building Blocks ◽  
Redox Behavior ◽  
Organosilicon Compounds ◽  
Design And Synthesis ◽  
Mild Conditions ◽  
Redox Active ◽  
Electronic Perturbation ◽  
Active Transition

Divalent silicon species, the so-called silylenes, represent attractive organosilicon building blocks. Isolable stable silylenes remain scarce, and in most hitherto reported examples, the silicon center is stabilized by electron-donating substituents (e.g., heteroatoms such as nitrogen), which results in electronic perturbation. In order to avoid such electronic perturbation, we have been interested in the chemistry of reactive silylenes with carbon-based substituents such as ferrocenyl groups. Due to the presence of a divalent silicon center and the redox-active transition metal iron, ferrocenylsilylenes can be expected to exhibit interesting redox behavior. Herein, we report the design and synthesis of a bis(ferrocenyl)silirane as a precursor for a bis(ferrocenyl)silylene, which could potentially be used as a building block for redox-active organosilicon compounds. It was found that the isolated bis(ferrocenyl)siliranes could be a bottleable precursor for the bis(ferrocenyl)silylene under mild conditions.

Redox-Active Heteroacene Chromophores Derived from a Non-Linear Aromatic Diimide

2019 ◽  
Author(s):  
Stella Luo ◽  
Kellie Stellmach ◽  
Stella Ikuzwe ◽  
Dennis Cao
Keyword(s):  
Density Functional Theory ◽  
Nucleophilic Substitution ◽  
Building Block ◽  
Density Functional ◽  
Organic Materials ◽  
Density Functional Theory Calculations ◽  
Differential Pulse ◽  
Fine Tuning ◽  
Functional Theory ◽  
Redox Active

<div>This work describes a three-step chromatography-free protocol for the synthesis of a novel organic materials</div><div>building block, dichlorinated mellophanic diimide (MDI), that is shown to undergo nucleophilic substitution</div><div>with a variety of ortho disubstituted benzenes to yield a series of chromophores. Furthermore, 1,2,4,5-</div><div>tetrasubstituted benzenes can be used to synthesize tetraimide heteropentacene derivatives endcapped by</div><div>MDI motifs. The fine-tuning effects of heteroatom identity were investigated by UV-Vis and fluorescence</div><div>spectroscopy, cyclic and differential pulse voltammetries, and density functional theory calculations. Oxidation</div><div>of diamino MDI derivatives yields di- and tetraimide functionalized azaacenes with significantly lowered LUMO</div><div>levels (down to –4.49 eV), narrowed bandgaps (down to 1.81 eV), and high molar absorptivities (up to 84,000</div><div>M<sup>–1</sup> cm<sup>–1</sup>).</div>

New Building Block forC3Symmetry Molecules: Synthesis ofs-Triazine-Based Redox Active Chromophores

2009 ◽  
Vol 11 (23) ◽  
pp. 5398-5401 ◽  
Author(s):  
Angélica García ◽  
Braulio Insuasty ◽  
M Ángeles Herranz ◽  
Roberto Martínez-Álvarez ◽  
Nazario Martín
Keyword(s):  
Building Block ◽  
Redox Active

Redox-Active Heteroacene Chromophores Derived from a Non-Linear Aromatic Diimide

2019 ◽  
Author(s):  
Stella Luo ◽  
Kellie Stellmach ◽  
Stella Ikuzwe ◽  
Dennis Cao
Keyword(s):  
Density Functional Theory ◽  
Nucleophilic Substitution ◽  
Building Block ◽  
Density Functional ◽  
Organic Materials ◽  
Density Functional Theory Calculations ◽  
Differential Pulse ◽  
Fine Tuning ◽  
Functional Theory ◽  
Redox Active

<div>This work describes a three-step chromatography-free protocol for the synthesis of a novel organic materials</div><div>building block, dichlorinated mellophanic diimide (MDI), that is shown to undergo nucleophilic substitution</div><div>with a variety of ortho disubstituted benzenes to yield a series of chromophores. Furthermore, 1,2,4,5-</div><div>tetrasubstituted benzenes can be used to synthesize tetraimide heteropentacene derivatives endcapped by</div><div>MDI motifs. The fine-tuning effects of heteroatom identity were investigated by UV-Vis and fluorescence</div><div>spectroscopy, cyclic and differential pulse voltammetries, and density functional theory calculations. Oxidation</div><div>of diamino MDI derivatives yields di- and tetraimide functionalized azaacenes with significantly lowered LUMO</div><div>levels (down to –4.49 eV), narrowed bandgaps (down to 1.81 eV), and high molar absorptivities (up to 84,000</div><div>M<sup>–1</sup> cm<sup>–1</sup>).</div>

2,5-Diformylbenzene-1,4-diol: A Versatile Building Block for the Synthesis of Ditopic Redox-Active Schiff Base Ligands

2007 ◽  
Vol 62 (1) ◽  
pp. 66-74 ◽  
Author(s):  
Tonia Kretz ◽  
Jan Willem Bats ◽  
Hans-Wolfram Lerner ◽  
Matthias Wagner
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Structure Analysis ◽  
Building Block ◽  
Crystal Structure Analysis ◽  
Schiff Base Ligands ◽  
X Ray ◽  
Starting Compound ◽  
Redox Active

2,5-Diformylbenzene-1,4-diol (5) is a well-suited starting compound for the preparation of ditopic hydroquinone-based ligands. Here, we report an optimized synthesis of 5 which improves the overall yield from published 7% to 42 %. Three new ditopic Schiff base ligands, 2,5-[iPr2N(CH2)2N=CH]2 - 1,4-(OH)2-C6H2 (8), 2,5-(pyCH2N=CH)2-1,4-(OH)2-C6H2 (9), and 2,5-[py(CH2)2N=CH]2-1,4- (OH)2-C6H2 (10), have been synthesized from 5 and structurally characterized by X-ray crystal structure analysis (py = 2-pyridyl).

scholarly journals Low-valent iron: an Fe(i) ate compound as a building block for a linear trinuclear Fe cluster

2015 ◽  
Vol 51 (73) ◽  
pp. 13890-13893 ◽  
Author(s):  
C. Lichtenberg ◽  
L. Viciu ◽  
M. Vogt ◽  
R. E. Rodríguez-Lugo ◽  
M. Adelhardt ◽  
...  
Keyword(s):  
Building Block ◽  
Iron Cluster ◽  
Redox Active ◽  
Low Valent ◽  
Trinuclear Iron Cluster

A low-valent, linear, trinuclear iron cluster was synthesized from a new Fe(i) ate compound with a redox-active diazadiene-diolefin ligand and fully characterized.

[V16O38(CN)]9–: A Soluble Mixed-Valence Redox-Active Building Block with Strong Antiferromagnetic Coupling

2012 ◽  
Vol 51 (17) ◽  
pp. 9192-9199 ◽  
Author(s):  
Tony D. Keene ◽  
Deanna M. D’Alessandro ◽  
Karl W. Krämer ◽  
Jason R. Price ◽  
David J. Price ◽  
...  
Keyword(s):  
Building Block ◽  
Mixed Valence ◽  
Antiferromagnetic Coupling ◽  
Redox Active
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