Browsing Τμήμα Χημείας / Department of Chemistry by Title
Now showing items 685-704 of 1320
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Near real-time VOCs analysis using an aspiration ion mobility spectrometer
(2013)The ChemPro 100i chemical detector (aspiration-type ion mobility spectrometer) was used for the detection of selected volatile organic compounds known to be potential indicators of human presence. The targeted group of ...
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Article
Near-Model Amphiphilic Polymer Conetworks Based on Four-Arm Stars of Poly(vinylidene fluoride) and Poly(ethylene glycol): Synthesis and Characterization
(2018)Amphiphilic polymer conetworks (APCN) were prepared in N,N-dimethylformamide (DMF) by the interconnection of four-arm star poly(vinylidene fluoride) (PVDF, Mn = 8800 Da) end-functionalized with benzaldehyde groups and ...
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Article
Near-monodisperse sodium polymethacrylates: Characterization by linear salt gradient anion-exchange chromatography
(2000)A family of six near-monodisperse homopolymers of sodium methacrylate (Mn = 1100, 3200, 5500, 7200, 14100, and 21000) is characterized by linear salt gradient anion-exchange chromatography. Although the retention times ...
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Near-monodisperse α-hydroxy and α,ω-dihydroxy amine-based polymers: Synthesis and characterization
(1999)α-Hydroxy and α,ω-dihydroxy polymers of 2-(dimethylamino)ethyl methacrylate (DMAEMA) of various molecular weights were synthesized by group transfer polymerization (GTP) in tetrahydrofuran (THF), using 1-methoxy-1-(trime ...
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Near-monodisperse, catalytically active, imidazole-containing homooligomers: Synthesis by group transfer polymerization and solution characterization
(1999)Oligomers covering degrees of polymerization up to 23 of 2-(1-imidazolyl)-ethyl methacrylate (ImEMA) were synthesized by group transfer polymerization (GTP) in propylene carbonate and tetrahydrofuran (THF). While GTP ...
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Near-monodisperse, n-alkyl, end-functionalized poly(methyl vinyl ether)s: Synthesis by living cationic polymerization and solution characterization
(1998)Water-soluble amphiphilic diblock copolymers were synthesized by the living cationic polymerization of methyl vinyl ether (hydrophilic block) and its subsequent termination with n-alcohols of chain lengths varying from one ...
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Networks Based on “Core-First” Star Polymers End-Linked Using a Degradable Ketal Cross-Linker: Synthesis, Characterization, and Cleavage
(2018)Sequential group transfer polymerization of cross-linker, monomer (methyl methacrylate), and cross-linker again is used to prepare cleavable polymer networks based on interconnected “core-first” star polymers. By employing ...
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Networks Based on “Core-First” Star Polymers End-Linked Using a Degradable Ketal Cross-Linker: Synthesis, Characterization, and Cleavage
(2018)Sequential group transfer polymerization of cross-linker, monomer (methyl methacrylate), and cross-linker again is used to prepare cleavable polymer networks based on interconnected “core-first” star polymers. By employing ...
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A new [2 + 2] functionalization of C60 with alkyl-substituted 1,3- butadienes: A mechanistic approach. Stereochemistry and isotope effects
(1998)The stereochemistry and secondary isotope effects of the [2 + 2] photocycloaddition of trans,trans- (7), cis,cis- (8), and cis,trans-2,4- hexadiene (9), 2,5-dimethyl-2,4-hexadiene (1), and its deuterated analogues 1-d1, ...
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Article
New antimony(III) bromide complexes with thioamides: Synthesis, characterization, and cytostatic properties
(2009)New antimony(III) bromide complexes with the heterocyclic thioamides, thiourea (TU), 2-mercapto-1-methylimidazole (MMl), 2-mercapto-benzimidazole (MBZlM), 2-mercapto-5-methyl-benzimidazole (MMBZIM), 5-ethoxy-2-mercapto- ...
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New antimony(III) halide complexes with dithiocarbamate ligands derived from thiuram degradation: The effect of the molecule's close contacts on in vitro cytotoxic activity
(2016)Antimony(III) halide complexes of the formulae {[SbBr(Me2DTC)2]n} (1), {[SbI(Me2DTC)2]n} (2) and {[(Me2DTC)2Sb(μ2-I)Sb(Me2DTC)2]+.I3-} (3) (Me2DTC = dimethyldithiocarbomate) were synthesized from SbX3, (X = Br or I) and ...
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Article
A new class of ferromagnetically-coupled mixed valence vanadium(IV/V) polyoxometalates
(2003)Reaction of [VVIOCl2(thf)2] with a bidentate nitrogen-donor ligand (L: phen = 1,10-phenanthroline, 5-mephen = 5-methyl-1,10-phenanthroline, bipy = 2,2′-bipyridine, 5,5′-me2bipy = 5,5′-dimethyl-2,2′-bipy) in methyl alcohol, ...
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Article
A new family of octanuclear Mn complexes with a rod-like topology
(2009)Three new octanuclear compounds were prepared from reactions of [Mn(O2CR)2]·2H2O (R = Et or Ph) with the diols 1,3-propanediol (pdH2) or 2-methyl-1,3-propanediol (mpdH2) in the presence of NaN3. All three compounds ...
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New metal-organic frameworks derived from pyridine-3,5-dicarboxylic acid: Structural diversity arising from the addition of templates into the reaction systems
(Royal Society of Chemistry, 2020-03-21)A series of new compounds prepared from reactions of pyridine-3,5-dicarboxylic acid (PDCH2), bipositive d-metal ions (Cd2+, Zn2+, Co2+ and Cu2+) and various template molecules [1,3-propanediol (pdH2), diethanolamine (deaH3), ...
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Article
New metalo-therapeutics of NSAIDs against human breast cancer cells
(2018)The non steroidal anti-inflammatory drugs (NSAID's)-silver(I) metallodrugs of aspirin (aspH), salicylic acid (salH2), naproxen (napH) acid or p-hydrobenzoic acid (pHbzaH) and the mitochondriotropic triphenylarsine (tpAs) ...
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New mixed-valence Mn6II/III complexes bearing oximato and azido ligands: Synthesis, and structural and magnetic characterization
(2010)The combined use of the anion of methyl 2-pyridyl ketone oxime (mpko -) and azides (N3-) in non-carboxylate Mn chemistry has afforded two new Mn6 clusters, [Mn6O 3(N3)3(mpko)6(H2O) 3](ClO4J2 (1) and [Mn6O3(N3) 5(mpko)6(H2O)] ...
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Article
New regiospecific isothiazole C-C coupling chemistry
(2006)Regioselective palladium catalysed coupling reactions are achieved in good to high yields, starting from either 3,5-dichloro- or 3,5-dibromoisothiazole-4-carbonitriles 1 and 2, providing 3-halo-5-(hetero/aryl, alkenyl and ...
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Article
New routes to benzothiophenes, isothiazoles and 1,2,3-dithiazoles
(1997)4,5-Dichloro-1,2,3-dithiazolium chloride 1 condenses with active methylene compounds, such as malononitrile, barbituric acid and Meldrum's acid, to give the dithiazol-5-ylidene derivatives, such as 3,4 and 5, in modest ...
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Article
New type dithiolene complex based on 4,5-(1,4-dioxane-2,3-diyldithio)-1,3-dithiol ligand: Synthesis, experimental and theoretical investigation
(2009)A new Nickel complex with an extended multisulfur dithiolene ligand Ni(edodddt)2 (edodddt = 2,3,4α,8α-tetrahydro-dithiine [2,3-b] [1,4] dioxo-6,7-dithiolene) has been synthesized and characterized by electrochemical ...
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New Zn 2+ metal organic frameworks with unique network topologies from the combination of trimesic acid and amino-alcohols
(2012)A series of new Zn 2+-trimesate (btc 3-) metal organic frameworks (MOFs) has been isolated in the presence of various amino-alcohols under solvothermal conditions. Thus, the reaction of ZnCl 2 with trimesic acid (H 3btc) ...