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Articles 11671 - 11700 of 33265

Full-Text Articles in Chemistry

Chem 475-101: Biochemistry Lab I, Yong Kim Sep 2018

Chem 475-101: Biochemistry Lab I, Yong Kim

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Chem 244 - Organic Chemistry Ii, Tamara Gund Sep 2018

Chem 244 - Organic Chemistry Ii, Tamara Gund

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Chem 125-H01: General Chemistry I (Honors), Bhavani Balasubramanian Sep 2018

Chem 125-H01: General Chemistry I (Honors), Bhavani Balasubramanian

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Evsc 627-101: Environmental Microbiology, Mengyan Li Sep 2018

Evsc 627-101: Environmental Microbiology, Mengyan Li

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Chem 748-101: Nanomaterials, Zafar Iqbal Sep 2018

Chem 748-101: Nanomaterials, Zafar Iqbal

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Chem 244-003: Organic Chemistry Ii, Ngozi Onyia Sep 2018

Chem 244-003: Organic Chemistry Ii, Ngozi Onyia

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Chem 245-001: Organic Chemistry For Chemical Engineers, Ngozi Onyia Sep 2018

Chem 245-001: Organic Chemistry For Chemical Engineers, Ngozi Onyia

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Evsc 610-101: Environmental Chemical Science, Pradyot Patnaik Sep 2018

Evsc 610-101: Environmental Chemical Science, Pradyot Patnaik

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Chem 243-101: Organic Chemistry I, A Castro Sep 2018

Chem 243-101: Organic Chemistry I, A Castro

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Chem 222-100: Analytical Chemistry, Hao Chen Sep 2018

Chem 222-100: Analytical Chemistry, Hao Chen

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Nascent O2 (A1ΔG, V = 0, 1) Rotational Distributions From The Photodissociation Of Jet‐Cooled O3 In The Hartley Band, Michelle L. Warter, Carolyn E. Gunthardt, Wei Wei, George Mcbane, Simon W. North Sep 2018

Nascent O2 (A1ΔG, V = 0, 1) Rotational Distributions From The Photodissociation Of Jet‐Cooled O3 In The Hartley Band, Michelle L. Warter, Carolyn E. Gunthardt, Wei Wei, George Mcbane, Simon W. North

Peer Reviewed Articles

We report rotational distributions for the O2 (a 1Δg) fragment from photodissociation of jet‐cooled O3 at 248, 266, and 282 nm. The rotational distributions show a population alternation that favors the even states, as previously reported for a 300 K sample by Valentini et al. (J. Chem. Phys. 86, 6745 (1987)). The alternation from the jet‐cooled precursor is much stronger than that observed by Valentini et al., and in contrast to their observations does not depend strongly on O2 (a 1Δg) vibrational state or photolysis wavelength. The …


Em 631-851: Legal Aspects Of Environmental Engineering, Michael Bonchonsky Sep 2018

Em 631-851: Legal Aspects Of Environmental Engineering, Michael Bonchonsky

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Chem 360-001 Environmental Chemistry, Alexei Khalizov Sep 2018

Chem 360-001 Environmental Chemistry, Alexei Khalizov

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Chem 661-101: Instrumentation Analysis Lab, Somenath Mitra Sep 2018

Chem 661-101: Instrumentation Analysis Lab, Somenath Mitra

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Evsc 614-101: Quantitative Environmental Risk Assessment, Chaudhery Mustansar Hussain Sep 2018

Evsc 614-101: Quantitative Environmental Risk Assessment, Chaudhery Mustansar Hussain

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Evsc 715-851: Energy And Sustainability, Michael Bonchonsky Sep 2018

Evsc 715-851: Energy And Sustainability, Michael Bonchonsky

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Evsc 612-101: Environmental Analysis, Pradyot Patnaik Sep 2018

Evsc 612-101: Environmental Analysis, Pradyot Patnaik

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Chem 473-001: Biochemistry, Edgardo Farinas Sep 2018

Chem 473-001: Biochemistry, Edgardo Farinas

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Evsc 484-101: Environmental Analysis, Pradyot Patnaik Sep 2018

Evsc 484-101: Environmental Analysis, Pradyot Patnaik

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Chem 243-003-Hm1: Organic Chemistry I, Yuanwei Zhang Sep 2018

Chem 243-003-Hm1: Organic Chemistry I, Yuanwei Zhang

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Chem 243-001: Organic Chemistry I, A Castro Sep 2018

Chem 243-001: Organic Chemistry I, A Castro

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Chem 231-001 Physical Chemistry I, Lev Krasnoperov Sep 2018

Chem 231-001 Physical Chemistry I, Lev Krasnoperov

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Eps 202-007: Society, Technology And Environment, Michael Bonchonsky Sep 2018

Eps 202-007: Society, Technology And Environment, Michael Bonchonsky

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Evsc 335-001: Environmental Law, Michael Bonchonsky Sep 2018

Evsc 335-001: Environmental Law, Michael Bonchonsky

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Evsc 385-101: Environmental Microbiology, Mengyan Li Sep 2018

Evsc 385-101: Environmental Microbiology, Mengyan Li

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.


Assembling Of Niox/Mwcnts-Gc Anodic Nanocatalyst For Water Electrolysis Applications, Yaser M. Asal Mr., Islam M. Al-Akraa Dr, Saher D. Khamis Eng Sep 2018

Assembling Of Niox/Mwcnts-Gc Anodic Nanocatalyst For Water Electrolysis Applications, Yaser M. Asal Mr., Islam M. Al-Akraa Dr, Saher D. Khamis Eng

Chemical Engineering

Glassy carbon (GC) electrode is intended to be modified with nickel oxide (NiOx) and multiwalled carbon nanotubes (MWCNTs) in the anodic reaction of water electrolysis. NiOx deposition time is optimized and a 5 min was enough to attain the maximum activity. A further modification of the catalyst with MWCNTs could greatly enhance its stability during continuous electrolysis. As an outcome, an energy amount of 21.7 kWh/KgO2 is minimized. Several electrochemical and materials characterization setups will be utilized to test the catalyst activity and to know its geometry and structure.


Vertical Vs. Adiabatic Ionization Energies In Solution And Gas-Phase: Probing Ionization-Induced Reorganization In Conformationally-Mobile Bichromophoric Actuators Using Photoelectron Spectroscopy, Electrochemistry And Theory, Maxim Vadimovich Ivanov, Denan Wang, Depeng Zhang, Rajendra Rathore, Scott A. Reid Sep 2018

Vertical Vs. Adiabatic Ionization Energies In Solution And Gas-Phase: Probing Ionization-Induced Reorganization In Conformationally-Mobile Bichromophoric Actuators Using Photoelectron Spectroscopy, Electrochemistry And Theory, Maxim Vadimovich Ivanov, Denan Wang, Depeng Zhang, Rajendra Rathore, Scott A. Reid

Chemistry Faculty Research and Publications

Ionization-induced structural and conformational reorganization in various π-stacked dimers and covalently linked bichromophores is relevant to many processes in biological systems and functional materials. In this work, we examine the role of structural, conformational, and solvent reorganization in a set of conformationally mobile bichromophoric donors, using a combination of gas-phase photoelectron spectroscopy, solution-phase electrochemistry, and density functional theory (DFT) calculations. Photoelectron spectral analysis yields both adiabatic and vertical ionization energies (AIE/VIE), which are compared with measured (adiabatic) solution-phase oxidation potentials (Eox). Importantly, we find a strong correlation of Eox with AIE, but not VIE, reflecting variations …


Removal Of Cu2+ And Ni2+ From Aqueous Solution Using Sno2 Nanomaterial Effect Of: Ph, Time, Temperature, Interfering Cations, Abigail M. Zepeda, Daisy Gonzalez, Luis Gonzalez Heredia, Karina Marquez, Cesar Perez, Erika Pena, K. Flores, Carolina Valdes, Thomas Eubanks, Jason Parsons, J. Cantu Sep 2018

Removal Of Cu2+ And Ni2+ From Aqueous Solution Using Sno2 Nanomaterial Effect Of: Ph, Time, Temperature, Interfering Cations, Abigail M. Zepeda, Daisy Gonzalez, Luis Gonzalez Heredia, Karina Marquez, Cesar Perez, Erika Pena, K. Flores, Carolina Valdes, Thomas Eubanks, Jason Parsons, J. Cantu

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Chemistry)

Tin oxide, SnO2, nanomaterial was synthesized and tested for the removal of Cu2+ and Ni2+ ions from aqueous solutions. Various parameters for the binding were investigated in batch studied, which included pH, time, temperature, and interferences. In addition, isotherm studied were performed to determine the maximum binding capacity for both Cu2+ and Ni2+ ions. The optimal binding pH determined from the effects of pH were to be at pH 5 for both the Cu2+ and Ni2+ ions. The isotherm studies were performed at temperatures of 4°C, 25 °C, and 45 °C for both the Cu2+ and Ni2+ ions and were …


Three-Dimensional Carbon Nanotube Yarn Based Solid State Solar Cells With Multiple Sensitizers Exhibit High Energy Conversion Efficiency, Glenn Grissom, Jared Jaksik, Monica Mcentee, Erin M. Durke, Sayeeda Tj Aishee, Margaret Cua, Okenwa Okoli, Ahmed Touhami, H. Justin Moore, M. Jasim Uddin Sep 2018

Three-Dimensional Carbon Nanotube Yarn Based Solid State Solar Cells With Multiple Sensitizers Exhibit High Energy Conversion Efficiency, Glenn Grissom, Jared Jaksik, Monica Mcentee, Erin M. Durke, Sayeeda Tj Aishee, Margaret Cua, Okenwa Okoli, Ahmed Touhami, H. Justin Moore, M. Jasim Uddin

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Chemistry)

Fiber-type dye sensitized solar cells that are non-metallic, flexible, and thread-like in structure have many potential military and functional textile applications. With the use of quantum dots (QD), exciton transfer facilitators (Phenyl-C61-butyric acid methyl ester-PCBM) and Poly(3-hexylthiophene-2,5-diyl-P3HT), and careful preparation of the TiO2 oxide layer deposited on the carbon fiber working electrode, an optimized efficiency of 7.6% was obtained. Carbon nanotube yarn (CNTY) was used to prepare both the working and counter electrodes of the fabricated cells. TiCl4 annealing of the TiO2 layer was carried out and the resulting oxide layer morphology was found to be very uniform. The quantum …


Conformational Analysis Of A Taddol-Based Phosphoramidite P,N Ligand In A Palladium(Ii) Η3-Π-Allyl Complex, Tülay A. Ateşin, Abdurrahman Atesin, Oscar Rodriguez, Diego Rivera, Lohany Y. Garcia Sep 2018

Conformational Analysis Of A Taddol-Based Phosphoramidite P,N Ligand In A Palladium(Ii) Η3-Π-Allyl Complex, Tülay A. Ateşin, Abdurrahman Atesin, Oscar Rodriguez, Diego Rivera, Lohany Y. Garcia

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Chemistry)

Highlights

  • Two lowest energy conformers differ in allyl conformation, conformer with exo allyl having lower energy.
  • Lowest energy conformer has “chair” conformation of 7-membered ring and “edge-on/face-on/face-on/edge-on” array of pH groups.
  • Next lowest energy conformer with exo allyl has alternating “edge-on/face-on” arrangement and “twist” 7-membered ring.
  • Changes in “chair/twist” conformations with different substrates is possible due to 2.4 kcal/mol energy difference.
  • These results explain stereochemical outcome of the reaction, and will guide design of new catalysts.

Abstract

The most stable conformations of a TADDOL-based phosphoramidite P,N ligand coordinated to a palladium(II) η3-π-allyl fragment have been investigated using …