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Showing 1 to 20 of 461 for “"Dimers"”.
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Novel Studies of Transition Metal Dimers
Made available in DSpace on 2014-12-13T20:10:01Z (GMT). No. of bitstreams: 1 7709156.pdf: 3248432 bytes, checksum: cb0109370ed3218bfd193fa489d34724 (MD5) Previous issue date: 1976
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Spectroscopy of Electronically Excited Xenon Dimers
Submitted by Elias Lopez (erlopez2@illinois.edu) on 2012-11-11T17:18:21Z No. of bitstreams: 1 Wagner_Clark_Jason.pdf: 2976494 bytes, checksum: 601a451181ed930edd5c62c841b812f7 (MD5)
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Inter-Rydberg excitation spectroscopy of krypton dimers
… 6p (3/2) $\sb2$ state, which produced metastable dimers via collisions with the 300 Torr krypton background. Molecular transitions originating from the metastable 5s$\sp3\Sigma\sbsp{\rm u}{+}(1\sb{\rm u}, 0\sbsp{\rm u}{-}$) were then probed with a dye laser, and the predissociation of the upper …
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Understanding the Vibrational Features of Hydrogen-Bonded Dimers
… features found in many hydrogen-bonded dimers. These methods utilize density functional theory to calculate the potential energy surface and a quantum variational approach to calculate vibrational spectra from these surfaces. One of the methods developed involves adiabatically separating …
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Thermodynamic and Spectroscopic Studies of Some Metal Dimers
… been investigated in this study for three metal dimers including tetra-n-butyratodirhodium (II), tetra-n-butyratodiruthenium (II,III) chloride, and tetra-n-heptanatodicopper (II). These complexes were studied using a combination of calorimetry, epr spectroscopy, and uv-visible absorption …
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Inter-Rydberg spectroscopy of argon and neon dimers
… have been rotationally resolved in the rare gas dimers heavier than He$\sb2$. Analysis of two of the bands indicate that B$\sb0$ $\simeq$ 0.17 cm$\sp{-1}$ for Ar$\sb2$4s$\sigma\sb{\rm g}$(1$\sb{\rm u}$, 0$\sbsp{\rm u}{-}$) and B$\sb0$ = 0.564 $\pm$ 0.007 cm$\sp{-1}$ for Ne$\sb2$3s$\sigma\sb{\rm …
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Synthesis and reactivity of multiply bonded tungsten dimers
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 1982
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Pair density wave superconducting states and statistical mechanics of dimers
… classical statistical mechanics properties of dimers, in particular, the dimer model on the Aztec diamond graph and its relation with the octahedron equation. In chapter 2 we present a theory of superconducting states where the Cooper pairs have a nonzero center-of-mass momentum, inhomogeneous …
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Dimers, Trimers and their Superpositions in a Bose-Fermi Mixture
… 23Na and 40K atoms. We examine the formation of dimers and trimers in a balanced, thermal mixture and their evolution into strongly interacting Bose polarons with hybridized dimer and trimer character when we instead immerse an impurity concentration of K into a dense quantum bath of Na. We …
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End-capped oligothiophene dimers incorporating TTF, metal dithiolene and spirocentric cores
… metal dithiolene, and spirocyclic dimers, the synthesis and properties of which are discussed in chapters 3, 4, and 5 respectively.
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Linear and H-shaped chiral dimers for applications in photonic liquid crystals
… systems. The target design for exploration was dimers composed of two rod-like liquid crystal moieties that were either terminally or laterally attached to one another by aliphatic spacer units, in the belief that such systems would provide for low melting points. Thus, two sets of chiral dimers …
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P53 Dimers Elicit Unique Tumor Suppressive Activities Through An Altered Metabolic Program
… a protein that preferentially forms monomers or dimers. These are also normal p53 states under basal cellular conditions. Although it is accepted that tetrameric p53 is required for full tumor suppressive activities, the physiological relevance of monomeric and dimeric states of p53 is not well …
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Rotation-vibration states and spectra of molecular dimers with large internal motions
Contains fulltext : mmubn000001_037989901.pdf (Publisher’s version ) (Open Access)
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Microwave-assisted Synthesis of Modified Cyclopentadienyl Iridium and Rhodium Chloro-bridged Dimers
… the design and synthesis of a series of dimers [(η5 - ring)MCl]2(μ2 -Cl)2, (where (η5 -ring)MCl = (η5 -Me4C5R)Rh(III)Cl or (η5 -Me4C5R)Ir(III)Cl). Iridium and rhodium dimeric complexes were synthesized via a microwave reaction and directly compared through single-crystal X-ray …
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Group IIB dimers: Spectroscopy of molecular cadmium and gain demonstration in molecular mercury
The $\rm B\sp1\Sigma\sbsp{u}{+}$ state of $\rm Cd\sb2,$ correlated with $\rm Cd(\sp1S)+Cd(5p\ \sp1P\sb1),$ was studied by laser excitation spectroscopy from the lowest metastable state, $\rm a\sp3\Pi\sb{g}.$ The excitation spectrum of the $\rm B\sp1\Sigma\sbsp{u}{+}\gets a\sp3\Pi\sb{g}$ transition …
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Main Group Elements in Catalysis: Alkene/Alkyne Activation Using Organoaluminium(III)–Pyridyl Dimers
… focus of this study was organoaluminium pyridyl dimers of the type [R2Al(2- py')]2 (R = Me, iBu; py'= substituted pyridyl group), which have been previously shown to be involved in a unique “pyridyl ring-flipping” (cis/trans isomerism) equilibrium. Five new dimers of the type [R2Al(2-py')]2 (R = …
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Mid infrared investigation of vinyl fluoride-N2O and 1,1-difluoroethylene-N2O weakly bound dimers
… and 1,1-difluoroethylene-N2O (C2H2F2-N2O) dimers. Infrared spectra for fundamental bands of C2H3F-N2O and C2H2F2-N2O dimers were recorded in the ν3 asymmetric stretching region of N2O (~ 2223 cm-1). These weakly bound dimers were formed in a supersonic jet expansion apparatus and probed …
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Organometallic compounds related to alkene polymerization catalysts: Cationic nickel(II) alkyls and hafnium(III) dimers
ABSTRACT HAS BEEN ARCHIVED 10/29/96
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Total synthesis of cyclotryptamine and diketopiperazine alkaloids and biosynthetic pathway investigation of unsymmetrical diketopiperazine dimers
… known to produce unsymmetrical diketopiperazine dimers, allowed the identification of NasB, a cytochrome P450 responsible for catalyzing late-stage oxidative dimerization of brevianamide F into (-)-naseseazine C. The relative and absolute stereochemical assignment was confirmed via its total …
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