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A collection of academic publications by faculty and staff, both before and during their time at UPEI.

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1 - 25 of 598
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A review on the prepn. and uses of organometallic polymers having metal-carbon bonds in the main or side chains or heteroatom-metal bonds in the main chain.
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The living ring-opening metathesis polymns. of deltacyclene (I) and 5-(tert-butyldimethylsiloxy)deltacyclene (II) in presence of the Schrock catalyst Mo(=CHCMe2Ph)[=N-2,6-(iso-Pr)2Ph](O-tert-Bu)2 were described. II was prepd. by first epoxidizing I, then treating this epoxide with a Lewis acid in pr...
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Organoiron polynorbornene containing arylazo or hetarylazo dye chromophores has been prepared via ring opening metathesis polymerization using Grubbs' catalyst. The obtained polymers were isolated as brightly colored materials and displayed good solubility in polar organic solvents. The colors of th...
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The traditional techniques of transmission and attenuated total reflectance (ATR) spectroscopy for determining the optical constants of liquids are not practical or reliable for very strong absorption bands. Specular reflectance can be used in these cases, but for volatile liquids it is impossib...
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The outer-sphere oxidation of the nickel(II) complex of the deprotonated pendant-arm macrocycle, 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-1-acetate, [NiL1(OH2)](+) by bis-(1,4,7-triazacyclononane)nickel(III), [Ni(tacn)(2)](3+) has been studied in aqueous perchlorate media. The rea...
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As functionalization of the polynorbornene backbone has shown to be a viable route towards altering the thermal and chem. properties of the resulting polymeric material, our focus was on the prepn. of norbornene monomers contg. a side-chain consisting of a rigid mesogen and/or an aliph. spacer. Ring...
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Novel polynorbornenes containing cationic cyclopentadienyliron moieties pendent to the polymer side chains were prepared via polymerization of metallated norbornene monomers using Grubbs' catalyst. Thermogravimetric analysis of the organometallic polymers showed two weight loss steps: the first at 2...
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A review presents all classes of macromols. contg. iron-carbon bonds and highlights some examples of these materials. Ferrocene-based polymer, polymers contg. cyclopentadienyliron complexed arenes or iron carbonyl complexes, iron polyynes, and polymer with Fe-Fe bond are discussed. The methods utili...
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A number of red to violet thienyl-2-azo and thienyl-5-azo disperse dyes were prepared using Gewald's methodology. Structural characterization of these novel dyes was carried out using IR, NMR and mass spectroscopy. UV–visible studies of these azo dyes in a number of polar solvents showed a conside...
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Compound 2, which was designed to act as a fluorescent sensor for calcium according to the PET (Photoinduced Electron Transfer) principle, shows a relatively small Ca2+-induced fluorescence enhancement factor (FE) of 1.8 whereas its close relative 1 is known to display a far higher FE value of 16. T...
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A novel degradative route to pregnanes has been elucidated in the marine sponge Araphimedon compressa. 22-Dehydrosterols, common in the diet of sponges, are the precursors to pregnanes and apparently are degraded by a mechanism analogous to the dealkylation of phytosterols to cholesterol.
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MoSe2 has been encapsulated with a variety of guest species. This was achieved by first treating the MoSe2 with an excess of n-BuLi to form the lithiated phase of MoSe2 (LixMoSe2). The LixMoSe2 exfoliates readily in water or NMF to yield single layers of MoSe2. Addition of solutions of polymers, org...
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The synthesis of the title complex was achieved via the reaction of a η6-p-dichlorobenzene-η5-cyclopentadienyliron cation with an organic four-arm core to produce the tetrairon complex. This tetrairon-containing core was subsequently polymerized via nucleophilic aromatic substitution with various ...
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In the title compd., [Fe(C13H11O2)2], there are markedly different orientations of the two phenylmethoxycarbonyl substituents [O-C-C-C torsion angles = 84.5(3) and 139.6(2)°]. These orientations are mediated by a no. of intermol. C-H···O interactions, which result in a one-dimensional hy...
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The ecteinascidins are a family of tetrahydroisoquinoline alkaloids isolated from the tunicate Ecteinascidia turbinata. Ecteinascidin 743 is a candidate for the treatment of several human cancers. Ecteinascidins have been shown to kill tumor cells in vitro, inhibit tumor growth in vivo, suppress all...
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Three nickel(II) pentaazamacrocycles bearing pendant alkyl tails have been synthesized, and the crystal structure of one (bearing an octyl tail) is reported. The redox potentials of the complexes, for oxidation of the nickel(II) centre, is 0.72 V (versus S. H. E.) in all cases, indicating that the p...
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Gorgonian corals have proven to be a prolific source of a variety of biologically active terpenes. Corals of the genus Plexaurella are known to be the source of a diverse array of sesquiterpenes, and past reports have indicated variability in terpene content. This study involved an examination of th...