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Poly(ethylene glycol) functionalized with an amino group (PEG-amine) was synthesized and characterized by proton NMR and FTIR spectroscopy. The polymer was complexed with lithium triflate (LiOTf) in varying ratios, and it was found that the composition (PEG-amine)8.0LiOTf exhibited a maximum ionic c...
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Naphthenic acids are known to be the most prevalent group of organic compounds in oil sands tailings-associated waters. Yellow perch (Perca flavescens) were exposed for four months to oil sands-influenced waters in two experimental systems located on an oil sands lease 30km north of Fort McMurray Al...
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Controlled radical polymerization has become increasingly important over the past decade and a half, allowing for the facile synthesis of specific macromolecular architectures with excellent control over the chemical and physical properties. This article presents an organized and detailed review of ...
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We introduce the localized pair model of electronic structure analysis and propose the two-electron reduced density matrix as an important interpretive tool in chemistry. Interelectronic probability distributions in position and momentum space are calculated for individual localized molecular orbita...
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A unique route to the synthesis of 2-alkyl-2-arylphenylsulphonylacetonitriles via the nucleophilic aromatic substitution (SNAr) of chloroarene cyclopentadienyliron complexes with 2-alkyl phenylsulphonylacetonitriles has been investigated. Reactions of chloroarene complexes (1a–d) with 2-alkyl phen...
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Since the days of G.N. Lewis [1] chemists have been enamored with the concept of a localized electron pair to represent the now intuitive features of electronic structure such as the so-called lone pair and even the chemical bond itself. Despite its simplicity the Lewis model yields an impressive we...
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Pseudopterosins and pseudopteroxazole are intriguing marine natural products that possess notable antimicrobial activity with a commensurate lack of cytotoxicity. New semi-synthetic pseudopteroxazoles, pseudopteroquinoxalines and pseudopterosin congeners along with simple synthetic mimics of the ter...
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Reaction of η6-o-dichlorobenzene-η5-cyclopentadienyliron hexafluorophosphate (IPF6) with an excess of phenol or p-thiocresol in the presence of K2CO3 could give disubstitution of both chloro groups of I, while a similar reaction with one equivalent of the nucleophile, and under conditions of high ...
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Aluminum-based salen and salan complexes mediate the ring-opening polymerization (ROP) of rac-β-butyrolactone (β-BL), rac-lactide, and ε-caprolactone. Al-salen and Al-salan complexes exhibit excellent control over the ROP of rac-β-butyrolactone, yielding atactic poly(3-hydroxybutyrate) (PHB) wit...
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Edaravone, an electron spin trapper with radical scavenging activity, has been shown to be effective in reducing infarct volume in humans following ischemic stroke. However, concerns of edaravone-induced renal toxicity have limited its clinical adoption. Previous work has demonstrated that edaravone...
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Protein tyrosine phosphatases (PTPs) play an essential role in maintaining the proper tyrosine phosphorylation state of proteins. Abnormal tyrosine phosphorylation has been implicated in diseases as diverse as type 2 diabetes, cancer, immune disorders and neurological disorders, and thus inhibitors ...
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Non-isothermal crystallisation studies of Organoiron poly(alkynyl methacrylate)s coordinated to dicobalt hexacarbonyl using differential scanning calorimetry (DSC) are reported. Two exothermic peaks appear on crystallisation of the polymers under investigation. Four isoconversional methods (the diff...
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Polyaniline, poly( N-methyl aniline), poly(2-ethyl aniline) and poly(2-propyl aniline) were intercalated into layered molybdenum diselenide by using the exfoliation/restacking property of LiMoSe. MoSe was reacted with n-butyllithium to form LiMoSe. The LiMoSe was exfoliated in N-methylformamide (NMF...
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Three aluminium salophen and two aluminium salen complexes were synthesised, characterised and screened in the ring-opening polymerisation (ROP) of rac-lactide and rac-β-butyrolactone. The focus was on controlling the apparent polymerisation rate (k p) and stereoselectivity of poly(lactic acid) and...