Synthesis and characterization of 2,7-bis(pentafluorophenylethynyl)hexafluoroheterofluorenes: new materials with high electron affinities

2008 ◽  
pp. 5107 ◽  
Author(s):  
Katharine Geramita ◽  
Jennifer McBee ◽  
Yuefei Tao ◽  
Rachel A. Segalman ◽  
T. Don Tilley
Keyword(s):  
Synthesis And Characterization ◽  
High Electron ◽  
Electron Affinities ◽  
New Materials

scholarly journals Synthesis and Characterization of a Bioconjugate Based on Oleic Acid and L-Cysteine

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1791
Author(s):  
Marco Vizcarra-Pacheco ◽  
María Ley-Flores ◽  
Ana Mizrahim Matrecitos-Burruel ◽  
Ricardo López-Esparza ◽  
Daniel Fernández-Quiroz ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Materials Science ◽  
Critical Micellar Concentration ◽  
Synthesis And Characterization ◽  
New Materials ◽  
Visible Spectroscopy ◽  
Amide Bonds ◽  
Transmission Electron ◽  
Self Assembled

One of the main challenges facing materials science today is the synthesis of new biodegradable and biocompatible materials capable of improving existing ones. This work focused on the synthesis of new biomaterials from the bioconjugation of oleic acid with L-cysteine using carbodiimide. The resulting reaction leads to amide bonds between the carboxylic acid of oleic acid and the primary amine of L-cysteine. The formation of the bioconjugate was corroborated by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and nuclear magnetic resonance (NMR). In these techniques, the development of new materials with marked differences with the precursors was confirmed. Furthermore, NMR has elucidated a surfactant structure, with a hydrophilic part and a hydrophobic section. Ultraviolet-visible spectroscopy (UV-Vis) was used to determine the critical micellar concentration (CMC) of the bioconjugate. Subsequently, light diffraction (DLS) was used to analyze the size of the resulting self-assembled structures. Finally, transmission electron microscopy (TEM) was obtained, where the shape and size of the self-assembled structures were appreciated.

Synthesis and characterization of solution processable, high electron affinity molecular dopants

2021 ◽  
Author(s):  
Jan Saska ◽  
Nikolay E. Shevchenko ◽  
Goktug Gonel ◽  
Zaira I. Bedolla-Valdez ◽  
Rachel M. Talbot ◽  
...  
Keyword(s):  
Electron Affinity ◽  
Ionization Energy ◽  
Synthesis And Characterization ◽  
High Electron ◽  
High Electron Affinity ◽  
High Ionization ◽  
Solution Processable

New organic-soluble dopants have record high electron affinity values and show outstanding doping performance with high ionization energy co-polymers.

Synthesis and characterization of new materials with pyrrole units and their semiconductor behavior

2016 ◽  
Vol 1819 ◽  
Author(s):  
Olivia Monroy ◽  
Lioudmila Fomina ◽  
Roberto Salcedo
Keyword(s):  
Aromatic Ring ◽  
Aromatic Amines ◽  
Organic Materials ◽  
Theoretical Calculations ◽  
Synthesis And Characterization ◽  
New Materials ◽  
Semiconductor Behavior ◽  
Semiconducting Behavior

ABSTRACTNew organic materials with semiconductor behavior were prepared from diphenyldiacetylene and aromatic amines with withdrawing groups by Reisch-Schulte reaction and characterized by IR, RMN spectroscopy. The obtained materials share the property of having electron withdrawing groups joint to the attached aromatic ring, it seems this feature accounts in large fashion to improve the semiconducting behavior of this kind of substances, this topic was studied by means theoretical calculations and the results are also discussed. The calculations were carried out by means the Gaussian09 software and all the involved species were geometrically optimized.

scholarly journals Prediction of the Chapman–Jouguet chemical equilibrium state in a detonation wave from first principles based reactive molecular dynamics

2016 ◽  
Vol 18 (3) ◽  
pp. 2015-2022 ◽  
Author(s):  
Dezhou Guo ◽  
Sergey V. Zybin ◽  
Qi An ◽  
William A. Goddard III ◽  
Fenglei Huang
Keyword(s):  
Molecular Dynamics ◽  
Detonation Wave ◽  
First Principles ◽  
Synthesis And Characterization ◽  
First Principle ◽  
New Materials ◽  
Dynamic Simulations ◽  
Reactive Molecular Dynamics ◽  
Measure Of Performance

This Rx2CJ first principle based protocol for predicting the CJ state provides the matching point between atomistic reaction dynamic simulations and the macroscopic properties of detonation, and can be used as a measure of performance for in silico synthesis and characterization of new materials.

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