A5088795939- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Crystallography and molecular interactions
- Synthesis and characterization of novel inorganic/organometallic compounds
- Organometallic Complex Synthesis and Catalysis
- Carbon Nanotubes in Composites
- Graphene research and applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Multicomponent Synthesis of Heterocycles
- Semiconductor materials and devices
- Diamond and Carbon-based Materials Research
- Dendrimers and Hyperbranched Polymers
- Catalysis and Hydrodesulfurization Studies
- Microfluidic and Capillary Electrophoresis Applications
- Metal complexes synthesis and properties
- Synthesis and Characterization of Pyrroles
- Coordination Chemistry and Organometallics
- Synthesis of heterocyclic compounds
- Magnetism in coordination complexes
- Advanced Synthetic Organic Chemistry
- Plant-based Medicinal Research
- Chemical synthesis and alkaloids
- Nanotechnology research and applications
- Interdisciplinary Research and Collaboration
- Engineering Education and Pedagogy
Saint Vincent College
2007-2015
Central Michigan University
2004-2013
Saint Vincent Health System
2007
University of Georgia
2000-2004
National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
2002
Multiwall carbon nanotubes (MWNTs) were synthesized via the decomposition of CCl4 in supercritical CO2 at 175 degrees C and 27.6 MPa using an iron-encapsulated dendrimer as a growth catalyst. The average diameter resultant was 20-25 nm, obtained after 24-h reaction time. Our conditions represent first application for CX4 precursors, well lowest-reported temperature regime nanotube growth, allowing use other temperature-sensitive catalytic substrates.
Pseudotetrahedral, conformationally as well configurationally stable 1-bromo-3-chloro-5-fluoro- (4) and 1-bromo-3-chloro-5-fluoro-7-iodoadamantane (5) (and some related compounds) were prepared by our recently devised phase-transfer catalytic halogenation protocol; the optical antipodes of 4 separated HPLC on chiral phase in ee > 99%, absolute configurations assigned matching observed computed circular dichroism spectra. Structure 5 is first aliphatic hydrocarbon containing all...
The dendritic architecture represents the fourth major class of polymers. Though hyperbranched polymers and structurally-perfect dendrimers (e.g., poly(amidoamine), PAMAM) both share this designation, latter are greater use for nanoreactor applications. One such application that exploits container/reactor properties is controlled growth nanoclusters. Herein, we provide a review recent synthetic methods nanocluster using host, their in variety benefits macromolecular host will also be...
Abstract β-Enaminones have been synthesized by the condensation reaction of β-diketones with various anilines in presence a catalytic amount formic acid, mild and highly efficient acid catalyst methanol. These reactions proceed smoothly short times near-quantitative yields. Supplemental materials are available for this article. Go to publisher's online edition Synthetic Communications® view free supplemental file.
Chemical vapor deposition (CVD) is a process routinely used to produce thin films of materials via decomposition volatile precursor molecules. Unfortunately, the equipment required for conventional CVD experiment not practical or affordable many undergraduate chemistry laboratories, especially at smaller institutions. In an effort expose students this valuable science technique, convenient, inexpensive apparatus was constructed deposit aluminum oxide on silicon wafer substrate. The system...
ADVERTISEMENT RETURN TO ISSUEPREVLetterNEXTA Synthesis of (+)-Salvadione-AGeorge Majetich, Yanyun Wang, Yang Li, Jason K. Vohs, and Gregory H. RobinsonView Author Information Department Chemistry, University Georgia, Athens, Georgia 30602 Cite this: Org. Lett. 2003, 5, 21, 3847–3850Publication Date (Web):September 20, 2003Publication History Received23 July 2003Published online20 September inissue 1 October...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSupercritical Fluid Facilitated Growth of Copper and Aluminum Oxide NanoparticlesGeoffrey L. Williams , Jason K. Vohs Jonathan J. Brege Bradley D. Fahlman View Author Information Department Biology, Central Michigan University, Mount Pleasant, MI 48859 Chemistry, 48859Cite this: Chem. Educ. 2005, 82, 5, 771Publication Date (Web):May 1, 2005Publication History Received3 August 2009Published online1 May 2005Published inissue 1...
We report the deposition of aluminum oxide and aluminosilicate thin films onto carbon fiber substrates, at temperatures 200° 250°C, respectively. For films, Al/Si ratio resultant film varied concomitantly with composition liquid precursor mixture. The growth rate for was 15–17 Å/min, comparable other methods carried out higher temperatures. Cross‐section SEM images indicate that deposited are conformal, following complex topography substrate. Preliminary gas‐phase IR analysis suggests...
Reaction of 1,4-dilithiotetraphenylbutadiene with phosphorus(III) bromide affords bis(tetraphenylbutadienyl)diphosphine, (Ph4C4)P–P(C4Ph4), a phosphorus–phosphorus bond length 2.2051(11) Å.
DFT (B3LYP) and MP2 computations with a 6-31G* basis set show that unique protoadamantane radical cation (1·+) structure an elongated, half-broken C6−H bond prevails both in the gas phase solution. This is agreement observed regioselectivity of single electron-transfer oxidation (1) photoexcited 1,2,4,5-tetracyanobenzene, which only gives 5-(6-protoadamantyl)-1,2,4-tricyanobenzene (5), for X-ray crystal reported. The regioselectivities functionalizations 1 electrophiles support this pathway....
In the title compound, [Ga(C12H18N2O2)Cl], Ga atom is coordinated to a Cl and two imine N enolate O atoms of Schiff base ligand. The literature reveals few examples five-coordinate GaO2N2Cl environment, only where both are contained within same This configuration has effect constraining complex into square-pyramidal geometry with less distortion than if formed by or more ligands. Ga—N Ga—O distances ranges expected for Ga–Schiff derivatives. compound also first group 13 containing...
Ordered carbonaceous growth typically requires high-energy methods such as arc discharge [] or decomposition of hydrocarbon-based precursors using laser [], plasma [3 Huczko, A., Lange, H., Sioda, M., Zhu, Y. Q., Hsu, W. K., Kroto, H. and Walton, D. R. M. 1534. J. Phys. Chem. B., 2002: 106 [CSA] [Google Scholar]], thermolytic techniques []. For the latter technique, temperature regimes on order 600–1000° C are most common, with a few recent reports citing lower temperatures halogenated [5–7...