2,2′-Biphospholes: Building Blocks for Tuning the HOMO-LUMO Gap of π-Systems Using Covalent Bonding and Metal Coordination

2011 ◽  
Vol 51 (1) ◽  
pp. 214-217 ◽  
Author(s):  
Hui Chen ◽  
Wylliam Delaunay ◽  
Liujian Yu ◽  
Damien Joly ◽  
Zuoyong Wang ◽  
...  
Keyword(s):  
Building Blocks ◽  
Covalent Bonding ◽  
Metal Coordination ◽  
Homo Lumo

2,2′-Biphospholes: Building Blocks for Tuning the HOMO-LUMO Gap of π-Systems Using Covalent Bonding and Metal Coordination

2011 ◽  
Vol 124 (1) ◽  
pp. 218-221 ◽  
Author(s):  
Hui Chen ◽  
Wylliam Delaunay ◽  
Liujian Yu ◽  
Damien Joly ◽  
Zuoyong Wang ◽  
...  
Keyword(s):  
Building Blocks ◽  
Covalent Bonding ◽  
Metal Coordination ◽  
Homo Lumo

Hierarchy of Supramolecular Arrangements and Building Blocks: Inverted Paradigm of Crystal Engineering in the Unprecedented Metal Coordination of Methylene Blue

2017 ◽  
Vol 56 (6) ◽  
pp. 3512-3516 ◽  
Author(s):  
Stefano Canossa ◽  
Alessia Bacchi ◽  
Claudia Graiff ◽  
Paolo Pelagatti ◽  
Giovanni Predieri ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Crystal Engineering ◽  
Building Blocks ◽  
Metal Coordination ◽  
Supramolecular Arrangements

scholarly journals Diverse protein assembly driven by metal and chelating amino acids with selectivity and tunability

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Minwoo Yang ◽  
Woon Ju Song
Keyword(s):  
Amino Acids ◽  
Self Assembly ◽  
Protein Structures ◽  
Functional Materials ◽  
Building Blocks ◽  
Unnatural Amino Acid ◽  
Metal Coordination ◽  
Specific Chemical ◽  
Natural Building ◽  
Kinetics Of

AbstractProteins are versatile natural building blocks with highly complex and multifunctional architectures, and self-assembled protein structures have been created by the introduction of covalent, noncovalent, or metal-coordination bonding. Here, we report the robust, selective, and reversible metal coordination properties of unnatural chelating amino acids as the sufficient and dominant driving force for diverse protein self-assembly. Bipyridine-alanine is genetically incorporated into a D3 homohexamer. Depending on the position of the unnatural amino acid, 1-directional, crystalline and noncrystalline 2-directional, combinatory, and hierarchical architectures are effectively created upon the addition of metal ions. The length and shape of the structures is tunable by altering conditions related to thermodynamics and kinetics of metal-coordination and subsequent reactions. The crystalline 1-directional and 2-directional biomaterials retain their native enzymatic activities with increased thermal stability, suggesting that introducing chelating ligands provides a specific chemical basis to synthesize diverse protein-based functional materials while retaining their native structures and functions.

Tetra- and Octalactam Macrocycles and Catenanes with Exocyclic Metal Coordination Sites: Versatile Building Blocks for Supramolecular Chemistry

2003 ◽  
Vol 9 (6) ◽  
pp. 1332-1347 ◽  
Author(s):  
Xi-you Li ◽  
Jens Illigen ◽  
Martin Nieger ◽  
Steffen Michel ◽  
Christoph A. Schalley
Keyword(s):  
Supramolecular Chemistry ◽  
Building Blocks ◽  
Metal Coordination ◽  
Coordination Sites

Molecular assembly at surfaces: progress and challenges

2017 ◽  
Vol 204 ◽  
pp. 9-33 ◽  
Author(s):  
R. Raval
Keyword(s):  
Building Blocks ◽  
Covalent Bonding ◽  
Molecular Assembly ◽  
Theoretical Modelling ◽  
Top Down ◽  
Molecular Systems ◽  
Natural Systems ◽  
Surfaces And Interfaces ◽  
Macromolecular Systems ◽  
Determine System

Molecules provide versatile building blocks, with a vast palette of functionalities and an ability to assemble via supramolecular and covalent bonding to generate remarkably diverse macromolecular systems. This is abundantly displayed by natural systems that have evolved on Earth, which exploit both supramolecular and covalent protocols to create the machinery of life. Importantly, these molecular assemblies deliver functions that are reproducible, adaptable, finessed and responsive. There is now a real need to translate complex molecular systems to surfaces and interfaces in order to engineer 21st century nanotechnology. ‘Top-down’ and ‘bottom-up’ approaches, and utilisation of supramolecular and covalent assembly, are currently being used to create a range of molecular architectures and functionalities at surfaces. In parallel, advanced tools developed for interrogating surfaces and interfaces have been deployed to capture the complexities of molecular behaviour at interfaces from the nanoscale to the macroscale, while advances in theoretical modelling are delivering insights into the balance of interactions that determine system behaviour. A few examples are provided here that outline molecular behaviour at surfaces, and the level of complexity that is inherent in such systems.

N- and P-Type Building Blocks for Organic Electronics Based on Oligothiophene Cores

2003 ◽  
Vol 769 ◽  
Author(s):  
Antonio Facchetti ◽  
Myung-Han Yoon ◽  
Howard E. Katz ◽  
Melissa Mushrush ◽  
Tobin J. Marks
Keyword(s):  
Organic Semiconductors ◽  
Organic Electronics ◽  
Carrier Mobility ◽  
Building Blocks ◽  
Conjugation Length ◽  
Π Interactions ◽  
Plastic Electronics ◽  
P Type ◽  
The Impact ◽  
Homo Lumo

AbstractOrganic semiconductors exhibiting complementary-type carrier mobility are the key components for the development of the field of “plastic electronics”. We present here a novel series of αω- and isomerically pure β,β'-diperfluorohexyl-substituted thiophene and study the impact of fluoroalkyl substitution and conjugation length vìs-à-vìs the corresponding fluorinefree analogues. Trends between the fluorinated and fluorine-free families in molecular packing, HOMO-LUMO gap, and π-π interactions are found to be strikingly similar. TFT measurements indicate that all members of the fluorinated series are n-type semiconductors

N- and P-Type Building Blocks for Organic Electronics Based on Oligothiophene Cores

2003 ◽  
Vol 771 ◽  
Author(s):  
Antonio Facchetti ◽  
Myung-Han Yoon ◽  
Howard E. Katz ◽  
Melissa Mushrush ◽  
Tobin J. Marks
Keyword(s):  
Organic Semiconductors ◽  
Organic Electronics ◽  
Carrier Mobility ◽  
Building Blocks ◽  
Molecular Packing ◽  
Conjugation Length ◽  
Π Interactions ◽  
P Type ◽  
The Impact ◽  
Homo Lumo

AbstractOrganic semiconductors exhibiting complementary-type carrier mobility are the key components for the development of the field of “gplastic electronics” We present here a novel series of α,ω- and isomerically pure ββ'-diperfluorohexyl-substituted thiophene and study the impact of fluoroalkyl substitution and conjugation length vis-a-vis the corresponding fluorinefree analogues. Trends between the fluorinated and fluorine-free families in molecular packing, HOMO-LUMO gap, and π-π interactions are found to be strikingly similar. TFT measurements indicate that all members of the fluorinated series are n-type semiconductors

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