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Browsing Chemistry by Issue Date
Now showing items 1-20 of 463
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Polynucleotide studies
(1972) -
Multicomponent flow injection analysis and quantitative infrared emission spectroscopy: chemometric applications
(1988)Chemometrics involves the use of mathematical and statistical methods to provide maximum information from chemical data. A number of methods and algorithms have been developed which have been found useful in the analysis ... -
Dynamics and structures of linear and supercoiled DNAs
(1989)A normal mode theory is developed for the Brownian dynamics of weakly bending rods with preaveraged hydrodynamic interactions. An expression is given for the mean squared angular displacement $$ of the $m\sp{th}$ bond-vector ... -
Analysis of synthetic polymers by near-infrared spectroscopy
(1989)As the role of the polymeric materials in industry broadens, it becomes increasingly important to provide rapid quality evaluation of these materials. Existing quality evaluation methods, such as physical testing, FT-IR ... -
Chemometrics and infrared emission spectroscopy for remote analysis
(1990)Chemometrics is a discipline of chemistry that uses mathematical and statistical techniques to extract useful information from chemical data. Infrared emission spectroscopy is one of a very few analytical techniques that ... -
Evaluation of a planar optic waveguide as a platform for evanescent field chemical sensor development
(1993)A Ag$\sp+$-exchange planar optic waveguide was fabricated with the intent of taking advantage of the significant interfacial sensitivity of the device for evanescent field chemical sensor development in the visible spectral ... -
The synthesis and study of tricyclo[3.3.3.0p3s,̳ p7s] undec-3(7)-ene, an important member of a homologous series of pyramidalized olefins
(1993)This dissertation describes the 17-step synthesis and study of tricyclo (3.3.3.0$\sp{3,7}$) -undec-3(7)-ene. It is, indeed, a very important member of a homologous series of pyramidalized olefins, because, unlike lower ... -
Liquid chromatographic separation and sensing principles with a water only mobile phase
(1996)Two separate subjects will be developed in this work. The first subject is a novel chemical analyzer based on a polymer clad optical fiber inserted into a transparent capillary tube. This configuration is referred to as ... -
Synthesis and NMR properties of dihydrogen-hydride complexes of rhodium and iridium
(1996)Addition of one equiv. of a tertiary phosphine ligand to toluene solutions of TpM(C$\sb2$H$\sb4)\sb2$ (Tp = hydridotris(1-pyrazolyl)borate; M = Rh, Ir) yields trigonal bipyramidal TPM(PR$\sb3$)(C$\sb2$H$\sb4$) complexes ... -
Permanganate oxidations of aromatic hydrocarbons in aqueous and organic solution
(1996)The oxidations of a select group of arylalkanes by permanganate have been studied in aqueous solution and in toluene. In water at pH 7, the reactions of toluene, ethylbenzene, and cumene with KMnO$\sb4$ were studied. In ... -
Grating light reflection spectroscopy
(1996)A new optical technique for analytical sensing, termed Grating Light Reflection Spectroscopy (GLRS), is described and evaluated in this dissertation. GLRS relies on the existence of thresholds in diffracted transmitted ... -
Theoretical investigations in vibrational spectroscopy
(1996)Radiationless transitions. Franck-Condon factors govern many important molecular processes, including electronic spectroscopy and radiationless transitions. Those processes that are classified as "vertical" transitions are ... -
Structure and reactivity of dinuclear complexes of iridium
(1996)Reaction of $\rm Cp\sp{\*}Ir(CO)H\sb2\ (Cp\sp{\*}=\eta\sp5$-C$\rm\sb5Me\sb5)$ with triflic acid (HOSO$\rm\sb2CF\sb3)$ generates hydrogen and the hydride bridged dimer $\rm\lbrack Cp\sp{\*}Ir(CO)H\rbrack\sb2(\mu$-H)$\sp+.$ ... -
Cationic dihydrogen complexes of rhenium with isonitrile coligands
(1996)The syntheses, characterizations, and reactivities of the following new complexes are reported: Re(CNtBu)$\rm\sb3(PR\sb3)\sb2$X(R = Cy, X = H, F, Cl, Br, I; R = Ph, X = H, Cl), (Re(CNtBu)$\rm\sb3(PR\sb3)\sb2L\rbrack\sp+$ ... -
Analysis of CW-EPR spectra and the internal dynamics of DNA
(1996)A new lineshape analysis program is developed to accurately extract the relaxation rate R$\sb2$ from CW-EPR spectra in the fast motion limit, taking into account instrumental broadening, saturation from R$\sb{\rm 1e}$, and ... -
Interactions of atmospheric particulate and trace gases with clouds at Cheeka Peak, WA
(1997)Measurements of various aerosol, trace gas, and cloud water constituents were made during two intensive observation periods at the Cheeka Peak Observatory (CPO) on the Washington state coast. These measurements were a part ...