A5038114180- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Cinema and Media Studies
- Music History and Culture
- Radio, Podcasts, and Digital Media
- Theater, Performance, and Music History
- Asymmetric Synthesis and Catalysis
- Media, Gender, and Advertising
- Ionic liquids properties and applications
- Surfactants and Colloidal Systems
- Visual perception and processing mechanisms
- Fluorine in Organic Chemistry
- Material Dynamics and Properties
- Analytical Chemistry and Chromatography
- Organometallic Complex Synthesis and Catalysis
- Catalytic C–H Functionalization Methods
- Chemical Synthesis and Analysis
- Crystallography and molecular interactions
- Digital Games and Media
- Carbon dioxide utilization in catalysis
- Diabetic Foot Ulcer Assessment and Management
- Diverse Musicological Studies
- Musicology and Musical Analysis
- Synthetic Organic Chemistry Methods
- Asian Culture and Media Studies
University of Virginia
2017-2024
Western University of Health Sciences
2024
University of Nottingham
2008-2023
University of Minnesota
2023
Weatherford (United States)
2023
University of California, Santa Cruz
2015-2018
University of Massachusetts Boston
2016
University of Newcastle Australia
2013-2014
Northwestern University
1972-2012
Organic Research Centre
2009
The rheological properties of five pure protic ionic liquids (ILs), ethylammonium nitrate (EAN), propylammonium (PAN), ethanolammonium (EtAN), formate (EAF), and dimethylethylammonium (DMEAF), are characterized interpreted by considering the effects both H-bond network solvophobic nanostructure liquids. results demonstrate that these not, however, independent or simply additive. At 20 °C, EtAN has highest zero shear viscosity 156.1 mPa·s, followed PAN (89.3 mPa·s), EAN (35.9 EAF (23.1 DMEAF...
In this letter we demonstrate that particle suspensions in room temperature ionic liquids differ from aqueous some surprising and remarkable ways. Two results are of key importance. First, 1 μm diameter silica spheres do not aggregate pure ethylammonium nitrate (EAN) despite interparticle electrostatic repulsions being completely screened by its 11 M strength. However these dispersions become unstable the presence small amounts water. Using colloid probe atomic force microscopy (AFM),...
The dihapto-coordination of benzene to the π-basic fragment {TpW(NO)(PMe3)} (Tp = hydridotris(pyrazolyl)-borate) enhances basicity arene ligand point that it can be protonated with a mild Brønsted acid (diphenylammonium triflate; pKa ∼ 1). resulting η2-benzenium complex reacts wide range nucleophiles including protected enolates, cyanide, amines, methoxide, and aromatic form 5-substituted 3,4-η2-1,3-cyclohexadiene complexes in good yield (42–70%). These coordinated dienes were successfully...
Biowastes from agriculture, sewage, household wastes, and industries comprise promising resources to produce biomaterials while reducing adverse environmental effects. This study focused on utilising waste-derived materials (i.e., eggshells as a calcium source, struvite phosphate CH3COOH dissolution media) value-added products phosphates (CaPs) derived biomaterials) using continuous flow hydrothermal synthesis route. The prepared were characterised via XRD, FEG-SEM, EDX, FTIR, TEM analysis....
Abstract Friedel-Crafts Arylation (the Scholl reaction) is the coupling of two aromatic rings with aid a strong Lewis or Brønsted acid. This historically significant C–C bond forming reaction normally leads to products, often as oligomeric mixtures, dictated by large stabilization gained upon their rearomatization. The coordination benzene tungsten complex disrupts natural course this sequence, allowing for without rearomatization oligomerization. Subsequent addition nucleophile coupled...
Between 1909 and 1925, a number of toys were patented produced that operated by the spinning motion phonograph player. In this article, author argues these ‘phonotoys’ complement refine our understanding genealogy sound cartoon, suggests popular recordings should be considered as an important expressive resource for early animators just film, vaudeville, newspaper comic strips. By outlining constellation family resemblances shared phonotoys cartoons made Disney, Fleischer, Warner Brothers,...
Key steps in the functionalization of an unactivated arene often involve its dihaptocoordination by a transition metal followed insertion into C–H bond. However, rarely are η2-arene and aryl hydride species measurable equilibrium. In this study, benzene/phenyl equilibrium is explored for {WTp(NO)(PBu3)} (Bu = n-butyl; Tp trispyrazoylborate) system as function temperature, solvent, ancillary ligand, substituent. Both face-flip ring-walk isomerizations identified through spin-saturation...
The preparation of the complexes TpMo(NO)(DMAP)(η2-PhCF3) (5) and TpMo(NO)(DMAP)(η2-benzene) (3) is described. CF3 group found to stabilize metal–arene bond strength in 5 by roughly 3 kcal/mol compared that 3, allowing large-scale synthesis isolation trifluorotoluene analogue (5, 37 g, 70%). When a benzene solution allowed stand, clean conversion occurs, this complex may be precipitated from upon addition pentane isolated. shown synthetic precursor functionalized cyclohexadienes: In...
Silica particle suspensions of 10 wt % have been investigated in the protic ionic liquids (ILs) ethylammonium nitrate (EAN), ethanolammonium (EtAN), propylammonium (PAN), and dimethylethylammonium formate (DMEAF). Static dynamic light scattering reveal that single particles coexist equilibrium with flocculated networks at room temperature. These types systems are classified as weakly quite rare. As generally exist only within a narrow range conditions, effect temperature was probed. When is...
A recently proposed computational theory for the perception of spatially coherent visual motion (see A.L. Yuille et al., 1988) is extended to include temporal coherence . Particularly, it argued that a good extension postulate direction does not change much in time. The consistent with psychophysical phenomena capture, cooperativity, nonrigid wave motion, and inertia. authors also discuss possible roles perception. It shown spatial improves signal-to-noise ratio perceived solves aperture...
The preparation and properties of the complex (RMo,R)-MoTp(NO)(DMAP)(η2-α-pinene) are described (∼10 g scale; DMAP = 4-(dimethylamino)pyridine; Tp hydridotris(pyrazolyl)borate). This undergoes exchange pinene with a wide range other π ligands including acetone, ethyl acetate, N,N-dimethylformamide, acetonitrile, naphthalene. Treatment α-pinene iodine results in (S)-MoTp(NO)(DMAP)(I), which is recovered enantioenriched form (er 99:1; yield >90%; scale 4.6 g). Reduction this molybdenum(I)...
List of Illustrations Acknowledgments Introduction 1. Turntable Jr. 2. Hi-Fi Midcult 3. 331/ 3 Sexual Revolutions per Minute 4. Mimetic Moments 5. Blind Television Conclusion Notes Further Reading Index
The preparation of the complex MoTp(NO)(DMAP)(4,5-η2-(2-trifluoromethyl)pyridine) (DMAP = 4-(dimethylamino)pyridine; Tp tris(pyrazolyl)borate) is described. CF3 substituent found to preclude κ-N coordination, allowing for direct coordination without protection nitrogen. dihapto-coordinate can be isolated as a single diastereomer, methylated, and reacted with range nucleophiles. Oxidative decomplexation affords free dihydropyridines in good yield (75–90%). As demonstration synthetic utility,...
Medicinal chemists use vast combinatorial molecular libraries to develop leads for new pharmaceuticals. The syntheses of these compounds typically rely on coupling fragments through atoms with planar (sp 2 ) geometry. These so-called flat molecules often lack the protein binding site specificity needed be an effective drug. Here, we demonstrate a strategy in which cyclohexene is used as linker connect two diverse while forming tetrahedral 3 stereocenters. connections are made aid tungsten...