A5069609934- High-pressure geophysics and materials
- Geological and Geochemical Analysis
- Planetary Science and Exploration
- Astro and Planetary Science
- Oxidative Organic Chemistry Reactions
- Biological Activity of Diterpenoids and Biflavonoids
- Laser-induced spectroscopy and plasma
- Free Radicals and Antioxidants
- Inorganic and Organometallic Chemistry
- Paleontology and Stratigraphy of Fossils
- Microbial Natural Products and Biosynthesis
- Rare-earth and actinide compounds
- Ion-surface interactions and analysis
- Hydrocarbon exploration and reservoir analysis
- Plant biochemistry and biosynthesis
- Catalytic Processes in Materials Science
- Chemical Synthesis and Reactions
- Intermetallics and Advanced Alloy Properties
- Engineering and Material Science Research
- Nuclear materials and radiation effects
- Advanced Materials Characterization Techniques
- Metallic Glasses and Amorphous Alloys
- Plasma Diagnostics and Applications
- Organic Chemistry Cycloaddition Reactions
- Chemical Reaction Mechanisms
Johnson Space Center
2024
Los Alamos National Laboratory
2020-2024
Jacobs (United States)
2017-2023
University of Nevada, Las Vegas
2015
Stony Brook University
1982
State University of New York
1982
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFlue-cured Tobacco. I. Isolation of Solanesol, an Unsaturated AlcoholR. L. Rowland, P. H. Latimer, and J. A. GilesCite this: Am. Chem. Soc. 1956, 78, 18, 4680–4683Publication Date (Print):September 1, 1956Publication History Published online1 May 2002Published inissue 1 September 1956https://doi.org/10.1021/ja01599a041RIGHTS & PERMISSIONSArticle Views308Altmetric-Citations102LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum full...
The oxidation of ethyl alcohol at platinum electrodes was studied by a‐c differential capacitance measurements, current density rates change with time, constant current, voltage‐time traces, and product analyses. Capacitance measurements can be interpreted as indicating that adsorbs on in the voltage range from +0.3 to 1.0v (NHE) 0.9 1.4v. Above 1.2v forms an irreversibly adsorbed oxide film which is not catalytically active weakly alcohol. On reduction this "activation" occurs resulting...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMacrocyclic Diterpenes. α- and β-4,8,13-Duvatriene-1,3-diols from Tobacco1Donald L. Roberts R. RowlandCite this: J. Org. Chem. 1962, 27, 11, 3989–3995Publication Date (Print):November 1, 1962Publication History Published online1 May 2002Published inissue 1 November 1962https://pubs.acs.org/doi/10.1021/jo01058a056https://doi.org/10.1021/jo01058a056research-articleACS PublicationsRequest reuse permissionsArticle Views272Altmetric-Citations80LEARN...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFlue-cured Tobacco. III. Solanachromene and α-TocopherolR. L. RowlandCite this: J. Am. Chem. Soc. 1958, 80, 22, 6130–6133Publication Date (Print):November 1, 1958Publication History Published online1 May 2002Published inissue 1 November 1958https://pubs.acs.org/doi/10.1021/ja01555a057https://doi.org/10.1021/ja01555a057research-articleACS PublicationsRequest reuse permissionsArticle Views60Altmetric-Citations44LEARN ABOUT THESE METRICSArticle Views...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSELF-DIFFUSION OF PALLADIUM IN SILVER-PALLADIUM ALLOYSRichard L. Rowland and Norman H. NachtriebCite this: J. Phys. Chem. 1963, 67, 12, 2817–2821Publication Date (Print):December 1, 1963Publication History Published online1 May 2002Published inissue 1 December 1963https://pubs.acs.org/doi/10.1021/j100806a075https://doi.org/10.1021/j100806a075research-articleACS PublicationsRequest reuse permissionsArticle Views216Altmetric-Citations44LEARN ABOUT...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFlue-cured Tobacco. II. NeophytadieneR. L. RowlandCite this: J. Am. Chem. Soc. 1957, 79, 18, 5007–5010Publication Date (Print):September 1, 1957Publication History Published online1 May 2002Published inissue 1 September 1957https://pubs.acs.org/doi/10.1021/ja01575a048https://doi.org/10.1021/ja01575a048research-articleACS PublicationsRequest reuse permissionsArticle Views236Altmetric-Citations28LEARN ABOUT THESE METRICSArticle Views are the...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMacrocyclic Diterpenes Isolated from Tobacco. α- and β-3,8,13-Duvatriene-1,5-diolsR. L. Rowland Donald RobertsCite this: J. Org. Chem. 1963, 28, 5, 1165–1169Publication Date (Print):May 1, 1963Publication History Published online1 May 2002Published inissue 1 1963https://pubs.acs.org/doi/10.1021/jo01040a001https://doi.org/10.1021/jo01040a001research-articleACS PublicationsRequest reuse permissionsArticle Views143Altmetric-Citations28LEARN ABOUT...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMacrocyclic Diterpene Hydroxy Ethers from Tobacco and Cigarette SmokeR. L. Rowland, Alan Rodgman, J. N. Schumacher, Donald Roberts, Lawrence C. Cook, W. E. Walker Jr.Cite this: Org. Chem. 1964, 29, 1, 16–21Publication Date (Print):January 1964Publication History Published online1 May 2002Published inissue 1 January 1964https://pubs.acs.org/doi/10.1021/jo01024a003https://doi.org/10.1021/jo01024a003research-articleACS PublicationsRequest reuse...
Polyethylene is a widely used plastic exhibiting large range of properties that depend on molecular weight, crystallinity, chain branching, and cross-linking. In this study, the sound speeds elastic variety commercially available polyethylene materials were experimentally determined using pulse-echo ultrasound technique. situ pressure dependent measurements, including time flight, x-ray diffraction, radiography, performed Paris-Edinburgh volume press at High Pressure Collaborative Access...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Reaction of Ketones with Iodine and PyridineL. Carroll King, Margaret McWhirter, R. L. RowlandCite this: J. Am. Chem. Soc. 1948, 70, 1, 239–242Publication Date (Print):January 1948Publication History Published online1 May 2002Published inissue 1 January 1948https://pubs.acs.org/doi/10.1021/ja01181a071https://doi.org/10.1021/ja01181a071research-articleACS PublicationsRequest reuse permissionsArticle Views358Altmetric-Citations17LEARN ABOUT THESE...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMercurial Diuretics. I. Addition of Mercuric Acetate to Allyl Urea1R. L. Rowland, Wendell Perry, E. Leon Foreman, and Harris FriedmanCite this: J. Am. Chem. Soc. 1950, 72, 8, 3595–3598Publication Date (Print):August 1, 1950Publication History Published online1 May 2002Published inissue 1 August 1950https://pubs.acs.org/doi/10.1021/ja01164a076https://doi.org/10.1021/ja01164a076research-articleACS PublicationsRequest reuse permissionsArticle...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMercurial Diuretics. III. Mercuration of Allylacetic Acid and Related CompoundsR. L. Rowland, Wendell Perry, Harris FriedmanCite this: J. Am. Chem. Soc. 1951, 73, 3, 1040–1041Publication Date (Print):March 1, 1951Publication History Published online1 May 2002Published inissue 1 March 1951https://pubs.acs.org/doi/10.1021/ja01147a046https://doi.org/10.1021/ja01147a046research-articleACS PublicationsRequest reuse permissionsArticle...
Uranium ditelluride $({\mathrm{UTe}}_{2})$ has attracted recent interest due to its unique superconducting properties, which include the potential for a topological odd-parity state. Recently, ac-calorimetry measurements under pressure indicate change in ground state of ${\mathrm{UTe}}_{2}$ from antiferromagnetic at 1.4 GPa. Here, we investigate effect on crystal structure up 25 GPa room temperature using x-ray diffraction. We find that ${\mathrm{UTe}}_{2}$, ambient conditions an...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMercurial Diuretics. VI. Ionization of Organic MercurialsR. L. RowlandCite this: J. Am. Chem. Soc. 1952, 74, 21, 5482–5484Publication Date (Print):November 1, 1952Publication History Published online1 May 2002Published inissue 1 November 1952https://pubs.acs.org/doi/10.1021/ja01141a075https://doi.org/10.1021/ja01141a075research-articleACS PublicationsRequest reuse permissionsArticle Views19Altmetric-Citations6LEARN ABOUT THESE METRICSArticle Views...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew Mercurials from 2,2-Diphenylpentene-4-ol-1 and NorbornyleneR. L. RowlandCite this: J. Am. Chem. Soc. 1951, 73, 5, 2381Publication Date (Print):May 1, 1951Publication History Published online1 May 2002Published inissue 1 1951https://pubs.acs.org/doi/10.1021/ja01149a536https://doi.org/10.1021/ja01149a536research-articleACS PublicationsRequest reuse permissionsArticle Views61Altmetric-Citations7LEARN ABOUT THESE METRICSArticle Views are the...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMercurial Diuretics. IV. Methoxymercuration of Substituted AllylureasR. L. Rowland, Wendell Perry, and Samuel GersteinCite this: J. Am. Chem. Soc. 1951, 73, 8, 3691–3693Publication Date (Print):August 1, 1951Publication History Published online1 May 2002Published inissue 1 August 1951https://doi.org/10.1021/ja01152a036RIGHTS & PERMISSIONSArticle Views73Altmetric-Citations6LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum full...
In this work, the Common Model of Multi-phase Strength and Equation State (CMMP) model was applied to tin. Specifically, calibrations strength-specific elements CMMP foundation were developed with a combination experiments theory, then validated experimentally. The first element is multi-phase analytic treatment melt temperature shear modulus for solid phases. These models parameterized each phase based on ab initio calculations using software VASP (Vienna Ab Simulations Package) density...
Abstract Results from X-ray remote sensing aboard NASA’s MErcury Surface Space ENvironment GEochemistry and Ranging (MESSENGER) spacecraft have demonstrated that Mercury has a low, but measurable, concentration of Fe on its surface. However, ultraviolet to near-infrared spectroscopic measurements the mercurian surface do not show 1 µm absorption band characteristic ferromagnesian silicates. This observation is consistent across multiple Fe-bearing terranes with range ages, suggesting present...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMercurial Diuretics. V. Stability of Mercury-Olefin Addition Compounds to Hydrochloric AcidR. L. Rowland and E. F. KlucheskyCite this: J. Am. Chem. Soc. 1951, 73, 11, 5490–5491Publication Date (Print):November 1, 1951Publication History Published online1 May 2002Published inissue 1 November 1951https://pubs.acs.org/doi/10.1021/ja01155a557https://doi.org/10.1021/ja01155a557research-articleACS PublicationsRequest reuse permissionsArticle...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMercurial Diuretics. II. Methoxymercuration of N-Allyl AmidesR. L. Rowland, Wendell Perry, and Samuel GersteinCite this: J. Am. Chem. Soc. 1951, 73, 1, 91–93Publication Date (Print):January 1951Publication History Published online1 May 2002Published inissue 1 January 1951https://pubs.acs.org/doi/10.1021/ja01145a033https://doi.org/10.1021/ja01145a033research-articleACS PublicationsRequest reuse permissionsArticle Views58Altmetric-Citations5LEARN...
Abstract Trace elements and extant extinct isotopic attributes in Martian meteorites have been used to argue that Mars accreted quickly, differentiated into core mantle, established several mantle reservoirs, possibly within 10 Ma of T0. The partitioning trace the deep has relatively unstudied, despite need for such knowledge understanding magma ocean crystallization origin depleted enriched reservoirs. siderophile element composition lithophile systems as Sr, Hf, Nd are thought record...
Understanding basic material properties of rare earth element (REE) bearing minerals such as their phase stability and equations state can assist in understanding how economically viable deposits might form. Bastnäsite is the most commonly mined REE mineral. We synthesized lanthanum-fluoride end member, bastnäsite-(La) (LaCO3F), investigated its thermal behavior decomposition products from 298 K to 1173 under ambient pressure conditions through thermogravimetric analysis, differential...