Browsing Τμήμα Χημείας / Department of Chemistry by Title
Now showing items 620-639 of 1302
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Micellization model for multivalent ionic surfactants
(1995)The micellization of surfactants comprising a multivalent ionic head and a dodecyl tail was modeled using Tanford's approach, which involves the description of the Coulombic repulsive forces via the Debye-Hückel approximation ...
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Microphase separation in ABA triblock copolymer-based model conetworks in the bulk: Effect of loop formation
(2006)This work estimates the free energy and domain size and predicts the phase diagram of microphase-separated model polymer conetworks, consisting of end-linked ABA triblock copolymers with cross-link points of relatively low ...
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Microphase separation in the bulk in ABA triblock copolymer-based model conetworks: Effects of core crowding and loop formation
(2013)The microphase separation in the bulk, in the strong segregation limit, of model conetworks based on end-linked ABA triblock copolymers was investigated by calculating and minimizing the total Gibbs free energy for the ...
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Microphase separation under constraints: A molecular thermodynamic theory for polyelectrolytic amphiphilic model networks in water
(2004)The aqueous aggregation behavior of covalent model networks comprising amphiphilic ABA triblock copolymers with hydrophilic ionic mid-blocks and hydrophobic non-ionic end-blocks was studied by formulating a molecular ...
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Microplastics and disposable face masks as “Trojan Horse” for radionuclides pollution in water bodies – A review with emphasis on the involved interactions
(Elsevier, 2023)This review article focuses on the interaction of radionuclides (americium-241, uranium-232, radium-226, neptunium-237, cesium-137, iodine-125, strontium-90, thorium-234, and potassium-40) with different microplastics ...
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A Microporous Co(II)-Based 3-D Metal Organic Framework Built from Magnetic Infinite Rod-Shaped Secondary Building Units
(2019)The synthesis and characterization of {[Co5(INA)3(HCOO)7(DMF)(H2O)]·2DMF·4H2O}∞ (INA? = the anion of isonicotinic acid) denoted as Co5-INA·2DMF·4H2O is reported. The compound was isolated from the reaction of Co(NO3)2·6H2O ...
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A microporous Co2+ metal organic framework with single-crystal to single-crystal transformation properties and high CO2 uptake
(2015)The synthesis and characterization of {[Co9(INA)18(H2O)6]·11DMF·15H2O}∞ (Co9-INA·11DMF·15H2O) (INA- = the anion of isonicotinic acid) is reported. It exhibits a rigid 3D-porous structure with a Co9 repeating unit consisting ...
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A microporous Cu2+ MOF based on a pyridyl isophthalic acid Schiff base ligand with high CO2 uptake
(2016)A new Cu2+ complex that was isolated from the initial use of 5-((pyridin-4-ylmethylene)amino)isophthalic acid (PEIPH2) in 3d metal-organic framework (MOF) chemistry is reported. Complex {[Cu3(PEIP)2(5-NH2-mBDC)(DMF)]·7DMF}∞ ...
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Microwave assisted synthesis of 3-aminoindole-2-carbonitriles from anthranilonitriles via N-unprotected 2-(cyanomethylamino)benzonitriles
(2010)Anthranilonitrile 3a, 4,5-dimethoxyanthranilonitrile 3b and 5-nitroanthranilonitrile 3c, react with paraformaldehyde, KCN and ZnCl2 in acetic acid under acid catalysis (H2SO4) in a sealed tube at ca. 55 °C to give the ...
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A missing oxidation-state level in the family of polyoxo(azide)octadecavanadate(IV/V) clusters: Synthesis, structure and antitumoural properties of [VIV11VV7O44(N3)]10 - In a sodium containing-3D architecture
(2016)The missing VIV11VV7 oxidation-state member of the polyoxooctadecavanadate(IV/V) - azide family of inorganic host-guest systems has been incorporated in a NaI-containing 3D architecture
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Mixed transition metal-lanthanide complexes at high oxidation states: Heteronuclear CeIVMnIV clusters
(2007)The syntheses of the first mixed-metal CeIVMnIV complexes are reported. [CeMn2O3(O2CMe)(NO 3)4(H2O)2(bpy)2]-(NO 3) (1
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Mixed Transition-Metal - Lanthanide Complexes at Higher Oxidation States: Heteronuclear CeIV-MnIV Clusters
(2004)Wheels within wheels: A new family of mixed cerium(IV)-manganese(IV) clusters has been prepared spanning a range of Ce:Mn ratios from 3:2 to 1:6. The unusual core of the latter CeMn6 complex is shown (Ce green, Mn blue, O ...
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Mixed-valence manganese carboxylate clusters, {MnIII6MnII4}, {MnIII7MnII5Na}, and {MnIII7MnII5}, derived from the combined use of Di-2-pyridyl ketone with selected aliphatic diols
(John Wiley & Sons Ltd, 2024-04-22)Reaxys Chemistry database information Indexed keywords SciVal Topics Metrics Funding details Abstract Three new polynuclear clusters with the formulae [Mn10O4(OH)(OMe){(py)2C(O)2}2{(py)2C(OMe)(O)}4(MeCO2)6](ClO4)2 ...
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A Mn 17 octahedron with a giant ground-state spin: Occurrence in discrete Form and as Multidimensional coordination polymers
(2009)A [Mn lll 11Mn ll 6(μ 4-O) 8(μ 3-L) 4] 25+ (L = N 3 - or OCN -) octahedral unit is reported, occurring within 1D (1)∞ and 2D (2)∞ coordination polymers, as well as the corresponding 0D discrete cluster 3. It possesses a ...
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A Mn 36Ni 4 'loop-of-loops-and-supertetrahedra' aggregate possessing a high S T = 26 ± 1 spin ground state
(2012)The initial use of 1,3-propanediol in mixed Mn/3d cluster chemistry has led to a Mn III 28Mn II 8Ni II 4 molecular aggregate which consists of two Mn III 8Ni 2 loops and two Mn III 6Mn II 4 supertetrahedral units and ...
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Mn12 benzoate thin films on Si substrates fabricated by matrix assisted pulsed laser evaporation
(2010)We report on the successful implementation of Matrix Assisted Pulsed Laser Evaporation, to obtain films of the single molecule magnet Mn12 benzoate on Si substrates. The films have been characterized by optical microscopy, ...
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[Mn12O12(OMe)2(O2CPh) 16(H2O)2]2- single-molecule magnets and other manganese compounds from a reductive aggregation procedure
(2005)A new synthetic procedure has been developed in Mn cluster chemistry involving reductive aggregation of permanganate (MnO4-) ions in MeOH in the presence of benzoic acid, and the first products from its use are described. ...
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[Mn14] “Structural Analogues” of Well-Known [Mn12] Single-Molecule Magnets
(2018)A new family of tetradecanuclear Mn clusters [MnIII10MnIV4(µ3-O)12(EtCO2)12(pd)4(EtOH)4(py)4](ClO4)2 (1), [MnIII10MnIV4(µ3-O)12(EtCO2)12(mpd)4(EtOH)2(H2O)2(py)4](ClO4)2 (2), and [MnIII10MnIV4(µ3-O)12(MeCO2)10(pic)4(pd)4(pdH2)4] ...
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A Mn15 single-molecule magnet consisting of a supertetrahedron incorporated in a loop
(2010)Two new Mn15 clusters consisting of a supertetrahedron which is incorporated in a loop are reported. The reactions of [Mn(O2CEt) 2]·2H2O with the diols 1,3-propanediol (H 2pd) or 2-methyl-1,3-propanediol (H2mpd) in the ...