Browsing Department of Chemistry by Title
Now showing items 25-39 of 39
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The sensitivity of benzene cluster cation chemical ionization mass spectrometry to select biogenic terpenes
(Atmos. Meas. Tech., Published by Copernicus Publications on behalf of the European Geosciences Union., 2018-06-07)Benzene cluster cations are a sensitive and selective reagent ion for chemical ionization of select biogenic volatile organic compounds. We have previously reported the sensitivity of a field deployable chemical ionization ... -
Simultaneous Detection of Ozone and Nitrogen Dioxide by Oxygen Anion Chemical Ionization Mass Spectrometry: A Fast Time Response Sensor Suitable for Eddy Covariance Measurements
(Atmos. Meas. Tech., Published by Copernicus Publications on behalf of the European Geosciences Union., 2020-04-01)We report on the development, characterization, and field deployment of a fast time response sensor for measuring ozone (O3) and nitrogen dioxide (NO2) concentrations utilizing chemical ionization time-of-flight mass ... -
SPFIT input, output, and .lin files for the mm/sub-mm assignment and fit of the CH2NH2 radical
(2022-05)These are the input, output, and line files for the assignment and fitting of the millimeter/submillimeter spectrum CH2NH2 radical in the SPFIT program. File with and without the inclusion of spin-rotation fitting terms ... -
Stable Glasses of Organic Semiconductor Resist Crystallization
(American Chemical Society, 2020)The instability of glassy solids poses a key limitation to their use in several technological applications. Well-packed organic glasses, prepared by physical vapor deposition (PVD), have drawn attention recently because ... -
Surface equilibration mechanism controls the molecular packing of glassy molecular semiconductors at organic interfaces
(United States National Academy of Sciences, 2021)Glasses prepared by physical vapor deposition (PVD) are anisotropic, and the average molecular orientation can be varied significantly by controlling the deposition conditions. While previous work has characterized the ... -
Surface Equilibration Mechanism Controls the Stability of a Model Codeposited Glass Mixture of Organic Semiconductors
(2023-05-02)While previous work has identified the conditions for preparing ultrastable singlecomponent organic glasses by physical vapor deposition (PVD), little is known about the stability of codeposited mixtures. Here, we prepared ... -
Tenfold increase in the photostability of an azobenzene guest in vapor-deposited glass mixtures
(2018-09-10)Improvements to the photostability of organic glasses for use in electronic applications have generally relied on modification of chemical structure. We show here that the photostability of a guest molecule can also be ... -
Vapor-Deposited Glasses with Long-Range Columnar Liquid Crystalline Order
(American Chemical Society, 2017-10-04)Anisotropic molecular packing, particularly in highly ordered liquid crystalline arrangements, has the potential for optimizing performance in organic electronic and optoelectronic applications. Here we show that physical ... -
Vapor-deposited Organic Glasses Exhibit Enhanced Stability Against Photodegradation
(Soft Matter, 2018-03-25)Photochemically stable solids are in demand for applications in organic electronics. Previous work has established the importance of the molecular packing environment by demonstrating that different crystal polymorphs ... -
WACSII DMS, Isoprene, and Monoterpene Waterside Measurements
(2019-08)The data set described here contains simultaneous, underway seawater measurements of the concentrations of isoprene, total monoterpenes, and dimethyl sulfide (DMS) in the Atlantic Ocean during the WACS-II cruise.