Search Results - "Scott, O C"

Decarboxylation via Addition of Water to a Carboxyl Group: Acid Catalysis of Pyrrole-2-Carboxylic Acid by Mundle, Scott O. C, Kluger, Ronald

“…The decarboxylation of pyrrole-2-carboxylic acid is subject to acid catalysis in strongly acidic solutions. Protonation of the pyrrole ring at C2 produces a…”
Get full text

Elevated levels of sulfur, nitrogen, and fluoride in small coastal streams near an aluminum smelter in north coastal British Columbia: a reply by Weidman, R. Paul, Maguire, Timothy J., Moore, Jonathan W., Mundle, Scott O. C., Selbie, Daniel T.

Get full text

Impacts of industrial atmospheric emissions on watershed export of dissolved ions in coastal streams: a Bayesian modeling approach by Maguire, Timothy J., Weidman, R. Paul, Mundle, Scott O. C., Moore, Jonathan W., Chezik, Kyle A., Selbie, Daniel T.

“…Anthropogenic atmospheric emission and subsequent deposition of sulfur (S) has been linked to disrupted watershed biogeochemical processes through soil and…”
Get full text

Hydrolytic Decarboxylation of Carboxylic Acids and the Formation of Protonated Carbonic Acid by Mundle, Scott O. C, Lacrampe-Couloume, Georges, Lollar, Barbara Sherwood, Kluger, Ronald

“…Acid-catalyzed decarboxylation reactions of carboxylic acids should avoid formation of protonated carbon dioxide, a very high energy species. A potential…”
Get full text

Diffusion Sampler for Compound Specific Carbon Isotope Analysis of Dissolved Hydrocarbon Contaminants by Passeport, Elodie, Landis, Richard, Mundle, Scott O. C, Chu, Katrina, Mack, E. Erin, Lutz, Edward, Lollar, Barbara Sherwood

“…Compound Specific Isotope Analysis (CSIA) is widely utilized to study the fate of organic contaminants in groundwater. To date, however, no method is available…”
Get full text

Fate and Transport of Shale-derived, Biogenic Methane by Hendry, M. Jim, Schmeling, Erin E., Barbour, S. Lee, Huang, M., Mundle, Scott O. C.

“…Natural gas extraction from unconventional shale gas reservoirs is the subject of considerable public debate, with a key concern being the impact of leaking…”
Get full text

Distinct Carbon Isotope Fractionation during Anaerobic Degradation of Dichlorobenzene Isomers by Liang, Xiaoming, Mundle, Scott O. C, Nelson, Jennifer L, Passeport, Elodie, Chan, Calvin C. H, Lacrampe-Couloume, Georges, Zinder, Stephen H, Sherwood Lollar, Barbara

“…Chlorinated benzenes are ubiquitous organic contaminants found in groundwater and soils. Compound specific isotope analysis (CSIA) has been increasingly used…”
Get full text

Insights into Enzyme Kinetics of Chloroethane Biodegradation Using Compound Specific Stable Isotopes by Lollar, Barbara Sherwood, Hirschorn, Sarah, Mundle, Scott O. C., Grostern, Ariel, Edwards, Elizabeth A., Lacrampe-Couloume, Georges

“…While compound specific isotope analysis (CSIA) has been used extensively to investigate remediation of chlorinated ethenes, to date considerably less…”
Get full text

Pressure-monitored headspace analysis combined with compound-specific isotope analysis to measure isotope fractionation in gas-producing reactions by Mundle, Scott O. C., Vandersteen, Adelle A., Lacrampe-Couloume, Georges, Kluger, Ronald, Sherwood Lollar, Barbara

“…RATIONALE Processes that lead to pressure changes in closed experimental systems can dramatically increase the total uncertainty in enrichment factors (ε)…”
Get full text

Large Carbon Isotope Fractionation during Biodegradation of Chloroform by Dehalobacter Cultures by Chan, Calvin C. H, Mundle, Scott O. C, Eckert, Thomas, Liang, Xiaoming, Tang, Shuiquan, Lacrampe-Couloume, Georges, Edwards, Elizabeth A, Sherwood Lollar, Barbara

“…Compound specific isotope analysis (CSIA) has been applied to monitor bioremediation of groundwater contaminants and provide insight into mechanisms of…”
Get full text

Monitoring Biodegradation of Ethene and Bioremediation of Chlorinated Ethenes at a Contaminated Site Using Compound-Specific Isotope Analysis (CSIA) by Mundle, Scott O. C, Johnson, Tiffany, Lacrampe-Couloume, Georges, Pérez-de-Mora, Alfredo, Duhamel, Melanie, Edwards, Elizabeth A, McMaster, Michaye L, Cox, Evan, Révész, Kinga, Sherwood Lollar, Barbara

“…Chlorinated ethenes are commonly found in contaminated groundwater. Remediation strategies focus on transformation processes that will ultimately lead to…”
Get full text

Protonated Carbonic Acid and Reactive Intermediates in the Acidic Decarboxylation of Indolecarboxylic Acids by Vandersteen, Adelle A, Mundle, Scott O.C, Kluger, Ronald

“…Elucidation of the mechanism for decarboxylation of indolecarboxylic acids over a wide range of solution acidity reveals the importance of protonated carbonic…”
Get full text

Carbon Kinetic Isotope Effects Reveal Variations in Reactivity of Intermediates in the Formation of Protonated Carbonic Acid by Vandersteen, Adelle A, Mundle, Scott O. C, Lacrampe-Couloume, Georges, Sherwood Lollar, Barbara, Kluger, Ronald

“…Kinetic evidence suggests that acid-catalyzed decarboxylation reactions of aromatic carboxylic acids can occur by a hydrolytic process that generates…”
Get full text

Fate and transport of dissolved methane and ethane in cretaceous shales of the Williston Basin, Canada by Jim Hendry, M., Lee Barbour, S., Schmeling, Erin E., Mundle, Scott O. C., Huang, M.

“…Baseline characteristics of dissolved methane (CH4) and ethane (C2H6) and their stable isotopes in thick, low hydraulic conductivity, Cretaceous shales were…”
Get full text

Origins of Steric Effects in General-Base-Catalyzed Enolization: Solvation and Electrostatic Attraction by Mundle, Scott O. C, Howe, Graeme W, Kluger, Ronald

“…Brønsted plots for general-base-catalyzed enolization of aldehydes and ketones show significant negative deviations for the rates of proton removal by…”
Get full text

Using stable water isotopes to evaluate water flow and nonpoint source pollutant contributions in three southern Ontario agricultural headwater streams by Gospodyn, Larissa, Wellen, Christopher, Sorichetti, Ryan J., Mundle, Scott O. C.

“…Improved understanding of catchment‐scale hydrology and nutrient transport in agricultural catchments is needed. Here, the annual young water fraction is…”
Get full text

Investigating the microbial dynamics of microcystin-LR degradation in Lake Erie sand by Salter, Chelsea, VanMensel, Danielle, Reid, Thomas, Birbeck, Johnna, Westrick, Judy, Mundle, Scott O.C., Weisener, Christopher G.

“…Cyanobacterial blooms and the associated hepatotoxins produced (e.g., microcystins, MCs) create a significant human health risk in freshwater lakes around the…”
Get full text

Nutrient variability and sediment contribution along a mixed land-use within Sturgeon Creek- Lake Erie watershed by Chen, Yu-Ting, Mundle, Scott O.C., Reid, Tom, Weisener, Christopher

“…[Display omitted] •Temporal phosphorus (P) and nitrogen (N) concentration show increases with mixed urban/agriculture point sources.•Values of δ18O–NO3-…”
Get full text

Increased nutrient concentrations in Lake Erie tributaries influenced by greenhouse agriculture by Maguire, Timothy J., Wellen, Christopher, Stammler, Katie L., Mundle, Scott O.C.

“…Greenhouse production of vegetables is a growing global trade. While greenhouses are typically captured under regulations aimed at farmland, they may also…”
Get full text

Investigating the Mechanism of Heteroaromatic Decarboxylation Using Solvent Kinetic Isotope Effects and Eyring Transition-State Theory by Mundle, Scott O. C, Guevara Opiñska, Liliana, Kluger, Ronald, Dicks, Andrew P

“…An upper-level mechanistic organic experiment is outlined where undergraduates measure kinetic rate constants for decarboxylation of pyrrole-2-carboxylic acid…”
Get full text