Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 4 of 4
Full-Text Articles in Inorganic Chemistry
Gravimetrically Characterizable Common Alkali Reducing Agents And Ligand Design Of A New Electron Rich Guanidinate, Efrain Maximiliano Castillo
Gravimetrically Characterizable Common Alkali Reducing Agents And Ligand Design Of A New Electron Rich Guanidinate, Efrain Maximiliano Castillo
Open Access Theses & Dissertations
SynThesis, isolation and characterization of 12 new alkali arenides was performed by the addition of the chelating base 18-crown-6. Electrochemistry, UV-vis/NIR spectroscopy and XRD studies were performed.
The incoorporation of an imidazolin-2-iminato group to the background of a guanidinate showed that this kind of ligand is electronically flexible and metal dependent. It was found that is more electron donating than some previously reported guanidinates and ketimine guanidinates.
Oxidation Of Dibenzothiophene To Dibenzothiophene Using Metal Nanoparticles Supported On Silica, Karina Castillo
Oxidation Of Dibenzothiophene To Dibenzothiophene Using Metal Nanoparticles Supported On Silica, Karina Castillo
Open Access Theses & Dissertations
Silica and nanoparticles of Pt, Au, and Ag supported on silica were tested for the ability to oxidize dibenzothiophene (DBT) to sulfone. High performance liquid chromatography was used to study the removal of DBT from solution. In addition, X- ray diffraction, infrared spectroscopy and Raman Spectroscopy were used to characterize the product of the oxidation reaction. Further studies involved the use X-ray absorption spectroscopy to characterize the nanoparticle catalysts before and after the oxidation reaction.
To better understand the reaction, silica was synthesized at different pHs using three different acids. The acids used to synthesize the silica were HCl, HNO3, …
Optical And Vibrational Spectroscopic Studies Of Synthetic Maya Pigments As A Function Of, Swati Kumar
Optical And Vibrational Spectroscopic Studies Of Synthetic Maya Pigments As A Function Of, Swati Kumar
Open Access Theses & Dissertations
Pigments developed by the Mayan civilization around 8th century, represent some of the most versatile pigments known to date. Several derivatives of these pigments are popular subjects of current research interest. This is due to the characteristic stability which is provided by a bonding mechanism between the dye and the clay. One such pigment "Maya Blue", a mixture of Indigo and Palygorskite, provides a dramatic background for murals and ceramics throughout Mesoamerica. Several research groups have devoted time and interest in unlocking its particular features.1-3
The work embodied in this Thesis is focused on the synThesis and characterization of three …
A Study Of The Interaction Of Thioindigo Dye, With Several Inorganic Host Materials, Alejandra Ramirez
A Study Of The Interaction Of Thioindigo Dye, With Several Inorganic Host Materials, Alejandra Ramirez
Open Access Theses & Dissertations
Maya Blue has been the focus of numerous studies and is believed to be a mixture of palygorskite clay and indigo dye.1,2 Several derivatives of this pigment have been developed with intriguing properties. For instance, the dye thioindigo reacts with the palygorskite clay to exhibit a broad range of colors from red to blue under UV-Vis excitation. Based on FT-Raman and computer simulation, previous work performed in our group could relate indigo and thioindigo interaction to the aluminum sites in the framework. super>3,4
The work performed with other inorganic host materials such as, layer structures and zeolites have …