Chemistry Commons^™

Surface-Enhanced Raman Study Of The Effect Of Ph And Electrode Potential On The Surface Concentrations Of The Electroactive Forms Of Pyridinecarboxaldehydes, Dennis Evans, Mark Anderson

Mark R. Anderson

No abstract is currently available.

The Systematic Design Of A Composite Electrolyte, Michael Setter, J. Wagner

Michael P. Setter

No abstract provided.

Electrochemical Reduction Of 1,1,4,4-Tetraphenylbutatriene, Tsu-Yu Chen, Mark Anderson, Dennis Peters

Mark R. Anderson

Polarograms and cyclic voltammograms for reduction of 1,1,4,4-tetraphenylbutatriene at mercury electrodes in dimethylformamide containing tetra-n-butylammonium perchlorate exhibit four waves; the first and second waves are due to stepwise formation of the radical anion and dianion of the starting material, whereas the third and fourth waves are attributable to reduction of 1,1,4,4-tetraphenyl-1,2-butadiene and 1,1,4,4-tetraphenyl-1-butene, respectively. Electrolysis of 1,1,4,4-tetraphenylbutatriene at potentials corresponding to the second wave yields 1,1,4,4-tetraphenyl-1,3-butadiene exclusively; at a slightly more negative potential, the latter undergoes reduction to 1,1,4,4-tetraphenyl-1-butene. When 1,1,4,4-tetraphenylbutatriene is electrolyzed in the presence of glacial acetic acid and at any potential on the first or second wave, …

Electrochemical Reduction Of Phenylpropadiene At Mercury Cathodes In Dimethylformamide: Isomerization Of The Allene To 1-Phenyl-1-Propyne, Tsu-Yu Chen, Mark Anderson, Steven Grossman, Dennis Peters

Mark R. Anderson

Polarograms and cyclic voltammograms exhibit two waves for reduction of phenylpropadiene at a mercury electrode in dimethylformamide containing tetra-n-butylammonium perchlorate, the f i t wave signals reduction of phenylpropadiene to 1-phenyl-1-propene and the second wave is attributable to reduction of 1-phenyl-1-propene to 1-phenylpropane. However, the fmt wave is abnormally small because phenylpropadiene undergoes substantial rearrangement to 1-phenyl-1-propyne, which is reducible to 1-phenylpropane at nearly the same potential as 1-phenyl-1-propene. Controlled-potential electrolyses of phenylpropadiene, 1-phenyl-1-propene, and 1-phenyl-1-propyne at mercury pool cathodes have verified the processes elucidated by means of polarography and cyclic voltammetry. In the presence of diethyl malonate (a proton …

Indirect Determination Of A Local Ph Change By Surface-Enhanced Raman Spectroscopy, Mark Anderson, Dennis Evans, Mary Wirth

Mark R. Anderson

No abstract is currently available.

Nuclease Activity Of 1,10-Phenanthroline-Copper Ion. Chemistry Of Deoxyribose Oxidation, Thomas Goyne, David Sigman

Thomas Goyne

No abstract provided.

Determination Of Electrochemical Kinetic Parameters Using The Bond-Henderson-Oldham Global Analysis, Mark Anderson, Dennis Evans

Mark R. Anderson

No abstract is currently available.

A Refined Model For The Space-Charge Layer In Composite Electrolyte Systems, Michael Setter

Michael P. Setter

No abstract provided.

Quantum Monte Carlo Study Of A Lattice Atom Model For Excitonic Fluids, Randall W. Hall, Peter G. Wolynes

Randall W. Hall

G. N. Lewis' Atom And Quantum Monte Carlo Studies Of Liquids, Randall W. Hall, Peter G. Wolynes

Randall W. Hall

Improvement Of Trace Aluminum Determination By Electrothermal Atomic Absorption Spectrophotometry Using Phosphoric Acid, Chris Craney, Kurt Swartout, F. Smith, C. West

Chris L. Craney

No abstract provided.

Electrochemical Reduction Of Alkyl Halides At Vitreous Carbon Cathodes In Dimethylformamide, James Cleary, Mohammed Mubarak, Kenneth Viera, Mark Anderson, Dennis Peters

Mark R. Anderson

At vitreous carbon electrodes in dimethylformamide which contains tetramethylammonium perchlorate, cyclic voltammograms for 1-iododecane, 1-bromodecane, and 2-bromooctane consist of one irreversible reduction wave signaling formation of the alkyl carbanion, whereas voltammograms for 2-iodooctane, t-butyl bromide, and t-butyl iodide reveal stepwise generation of the alkyl radical and carbanion. Large-scale electrolysis of 1-iododecane at reticulated vitreous carbon yields decane, eicosane, 1-decene, and 1-decanol; the first two compounds arise, respectively, from reaction of decyl carbanions with a proton donor and with unreduced alkyl iodide, whereas the last two species are produced via chemical attack of hydroxide ion on 1-iododecane. Reduction of 1-bromodecane results …

Electrochemistry Of 1,1,4,4-Tetraphenyl-1,3-Butadiene, 1,1,4,4-Tetraphenyl-1,2-Butadiene, And 1,1,4,4-Tetraphenyl-1-Butene In Dimethylformamide, Tsu-Yu Chen, Mark Anderson, Dennis Peters

Mark R. Anderson

In dimethylformamide containing tetra-n-butylammonium perchlorate, 1,1,4,4-tetraphenyl-1-butene exhibits a single polarographic wave; preparative-scale reduction of the starting material produces 1,1,4,4-tetraphenylbutane.A polarogram for 1,1,4,4-tetraphenyl-1,3-butadiene consists of three waves. Large-scale electrolysis of 1,1,4,4-tetraphenyl-1,3-butadiene at potentials corresponding to either the first or second wave yields 1,1,4,4-tetraphenyl-1-butene in the absence of a proton donor and a mixture of 1,1,4,4-tetraphenyl-2-butene and 1,1,4,4-tetraphenyl-1-butene in the presence of excess glacial acetic acid. If 1,1,4,4-tetraphenyl-1,3-butadiene is electrolyzed at a potential on the third polarographic wave, one obtains 1,1,4,4-tetraphenylbutane in the absence of a proton donor but a mixture of 1,1,4,4-tetraphenyl-2-butene and 1,1,4,4-tetraphenylbutane in the presence of glacial acetic acid. …

A Highly Enantioselective Hydrolysis Of -3,5-Diacetoxycyclopent-1-Ene, Donald Deardorff, A. Matthews, D. Mcmeekin, Chris Craney

Chris L. Craney

Exposure of -3,5-diacetoxycyclopent-1-ene () to the hydrolase enzyme acetylcholinesterase (from electric eel) affords In 94% yield 3()-acetoxy-5()-hydroxycyclopent-1-ene () with an e.e. of 96% (greater than 99% e.e. after one recrystallization).

Nuclease Activity Of 1,10-Phenanthroline-Copper Ion: Reaction With Cgcgaattcgcg And Its Complexes With Netropsin And Ecori, Thomas Goyne, Michio Kuwabara, Chun Yoon, Theodore Thederahn, David Sigman

Thomas Goyne

No abstract provided.

Evaluation Of Electrochemical Kinetic Parameters Using The Bond-Henderson-Oldham Global Analysis, Dennis Evans, Mark Anderson

Mark R. Anderson

No abstract is currently available.

Behavior Of An Electron In Helium Gas, John Bartholomew, Randall W. Hall, Bruce J. Berne

Randall W. Hall

Predictors Of Grades In General Chemistry For Allied Health Students, Chris Craney, R. Armstrong

Chris L. Craney

Study searching for an effective predictor of student performance in the first term of a full-year general chemistry sequence for allied health students.

Electrochemical Reduction Of 1,1,4,4-Tetraphenylbutatriene In Dimethylformamid, Dennis Peters, Mark Anderson, Tsu-Yu Chen

Mark R. Anderson

No abstract is currently available.

Evaluation Of Electrochemical Kinetic Parameters Using The Bond-Henderson-Oldham Global Analysis, Dennis Evans, Mark Anderson

Mark R. Anderson

No abstract is currently available.

Chemistry Of Singlet Oxygen. 47. 9,10-Dicyanoanthracene-Sensitized Photooxygenation Of Alkyl-Substituted Olefins, Thomas Goyne, Yasuhiko Araki, Diane Dobrowolski, Douglas Hanson, Zhi Jiang, Kenneth Lee, Christopher Foote

Thomas Goyne

No abstract provided.

Nonergodicity In Path Integral Molecular Dynamics, Randall W. Hall, B. J. Berne

Randall W. Hall

A Path Integral Monte Carlo Study Of Liquid Neon And The Quantum Effective Pair Potential, Devarajan Thirumalai, Randall W. Hall, Bruce J. Berne

Randall W. Hall

A Rapid Affinity Chromatography Procedure For The Isolation Of Glucose-6-Phosphate Dehydrogenase From Human Erythrocytes, Chris Craney, M. Goffredo

Chris L. Craney

The isolation of glucose-6-phosphate dehydrogenase from outdated human erythrocytes (type AB+) utilizing NADP+ affinity chromatography and gel-permeation chromatography (Bio-Gel P-150) yields a fully active, homogeneous preparation. The procedure is faster and gives a higher yield than previous reports.

Assessment Of Chlorination By Human Neutrophils, Thomas Goyne, Christopher Foote, Robert Lehrer

Thomas Goyne

No abstract provided.

Crystal Structures Of Trans-Acetyldicarbonyl- (Eta5-Cyclopentadienyl)(Dimethylphenylphosphane)- Molybdenum(Ii) And Trans-Acetyldicarbonyl- (Eta5-Cyclopentadienyl)(Ethyldiphenylphosphane)- Molybdenum(Ii), Matthew T. Whited, Gretchen E. Hofmeister, Connor J. Hodges, Laramie T. Jensen, Samuel H. Keyes, Aurapat Ngamnithiporn, Daron E. Janzen

Daron E Janzen, Ph.D.

No abstract provided.

The Electrochemical Reduction Of Phenylpropadiene, Dennis Peters, Tsu-Yu Chen, Mark Anderson, Steven Grossman

Mark R. Anderson

No abstract is currently available.