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Descriptors for the Prediction of Partition Coefficients and Solubilities of Organophosphorus Compounds (open access)

Descriptors for the Prediction of Partition Coefficients and Solubilities of Organophosphorus Compounds

This article discusses the determination of Abraham descriptors for several series of organophosphorus compounds.
Date: December 19, 2011
Creator: Abraham, M. H. (Michael H.) & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
A New Chromophoric Organic Molecule Toward Improved Molecular Optoelectronic Devices (open access)

A New Chromophoric Organic Molecule Toward Improved Molecular Optoelectronic Devices

The characterization of 2,3,6,7,10,11-hexabromotriphenylene, Br6TP, is presented toward its potential use as an n-type organic semiconductor and metal-free room temperature phosphor. The crystal structure shows both anisotropic two-dimensional BrBr interactions and inter-layer ?-stacking interactions. Photophysical characteristics were evaluated using solid-state photoluminescence and diffuse reflectance spectroscopies, revealing significantly red-shifted excitations in the visible region for the yellow solid material (compared to ultraviolet absorption bands for the colorless dilute solutions). Correlation of spectral, electrochemical, and computational data suggest the presence of an n-type semiconducting behavior due to the electron-poor aromatic ring. The material shows excellent thermal stability as demonstrated by thermogravimetric analysis and infrared spectra of a thin film deposited by thermal evaporation. The potential for Br6TP and its analogues toward use in several types of photonic and electronic devices is discussed.
Date: December 2012
Creator: Halbert, Jason Paul
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Graphene/(Multilayer) Boron Nitride Heteroepitaxy for Electronic Device Applications (open access)

Graphene/(Multilayer) Boron Nitride Heteroepitaxy for Electronic Device Applications

Patent relating to graphene/(multilayer) boron nitride heteroepitaxy for electronic device applications.
Date: September 23, 2011
Creator: Kelber, Jeffry A.
Object Type: Patent
System: The UNT Digital Library
Variable Pathways for Oxygen Atom Insertion into Metal-Carbon Bonds: The Case of Cp*W(O)₂(CH₂SiMe₃) (open access)

Variable Pathways for Oxygen Atom Insertion into Metal-Carbon Bonds: The Case of Cp*W(O)₂(CH₂SiMe₃)

Article discussing variable pathways for oxygen atom insertion into metal-carbon bonds and the case of Cp*W(O)2(CH2SiMe3).
Date: December 24, 2012
Creator: Mei, Jiajun; Carsch, Kurtis M.; Freitag, Cody R.; Gunnoe, T. Brent & Cundari, Thomas R., 1964-
Object Type: Article
System: The UNT Digital Library