Browsing Τμήμα Χημείας / Department of Chemistry by Title
Now showing items 610-629 of 1320
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Article
Macrocyclic cyclo[n]malonates - Synthetic aspects and observation of columnar arrangements by X-ray crystallography
(2006)A variety of achiral and chiral macrocyclic oligomalonates were synthesised in a one-step procedure through condensation of malonyl dichloride with α,ω-diols. We have investigated the applicability of this method by varying ...
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Article
Macrocyclic malonates. A new family of tethers for the regio- and diastereoselective functionalization of [60]fullerene
(2006)The tether-directed remote functionalization of C60 has been investigated by using cyclic bis- and trismalonate tethers. The reactive malonate groups are connected with alkyl spacers and their synthesis was performed in ...
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Article
Macromol. Theory Simul. 6∕2013
(2013)
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Article
Magnetic "Molecular Oligomers" Based on Decametallic Supertetrahedra: A Giant Mn49 Cuboctahedron and its Mn25Na4 Fragment
(2016)Two nanosized Mn49 and Mn25Na4 clusters based on analogues of the high-spin (S=22) [MnIII 6MnII 4(μ4-O)4]18+ supertetrahedral core are reported. Mn49 and Mn25Na4 complexes consist of eight and four decametallic supertetrahedral ...
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Article
Magnetic-field inversion in vortices in multilayers
(1997)We present a description of very dense vortex lattices in highly anisotropic multilayers, for high fields parallel to the layers. We show that a magnetic-field inversion can occur away from the center of a vortex, provided ...
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Article
A magnetostructural investigation of an abrupt spin transition for 1-phenyl-3-trifluoromethyl-1,4-dihydrobenzo[e][1,2,4]triazin-4-yl
(2014)1-Phenyl-3-trifluoromethyl-1,4-dihydrobenzo[e][1,2,4]triazin-4-yl is the first example of a hydrazyl radical that shows a reversible sharp spin transition fully completed within 5(1) K. The nominally first-order transition ...
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Article
Main and side stream effects of electronic cigarettes
(2019)Over the last decade there has been a significant boost towards the use of electronic cigarettes (e-cigarettes), especially among youth. Different concentrations of propylene glycol (PG) or vegetable glycerin (VG), flavors ...
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Article
Managing Local Order in Conjugated Polymer Blends via Polarity Contrast
(2019)The optoelectronic landscape of conjugated polymers is intimately related to their molecular arrangement and packing, with minute changes in local order, such as chain conformation and torsional backbone order/disorder, ...
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Manipulating the singlet-triplet energy gaps of arene-fused bis(1,2,3-dithiazoles): A computational study
(2013)Benzo- and azino-fused bis(1,2,3-dithiazoles) were investigated computationally using density functional theory (DFT) in an attempt to relate structure to ground state multiplicity preference. Structural changes on the ...
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Article
Mathematical modeling of the oxygen storage capacity phenomenon studied by CO pulse transient experiments over Pd/CeO2 catalystAAA
(2003)A mathematical model has been developed for the first time to study the oxygen storage capacity (OSC) phenomenon by the CO pulse injection technique over a 1 wt% Pd/CeO2 model catalyst in the 500-700°C range. A two-step ...
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Article
Matrix assisted pulsed laser evaporation of Mn 12(Propionate) thin films
(2012)Single molecule magnets are of great interest due to a multitude of potential applications for some of which thin films are required. Traditional physical vapor deposition techniques are not suitable for the deposition of ...
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Article
The mechanism of reduction of NO with H2 in strongly oxidizing conditions (H2-SCR) on a novel Pt/MgO-CeO2 catalyst: Effects of reaction temperature
(2008)Steady State Isotopic Transient Kinetic Analysis (SSITKA) experiments using on-line Mass Spectrometry (MS) and in situ Diffuse Reflectance Infrared Fourier-Transform Spectroscopy (DRIFTS) have been performed to study ...
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Article
The Mechanism of Spectral Shift and Inhomogeneous Broadening of an Aromatic Chromophore in a Polymer Glass
(1995)We have attempted to obtain microscopic-level understanding of the absorption band of the chromophore s-tetrazine in a glassy polymer matrix (atactic polypropylene) at low temperatures. Our investigation has focused on the ...
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Article
Mechanistic aspects of the H2-SCR of NO on a Novel Pt/MgO-CeO2 catalyst
(2007)Steady State Isotopic Transient Kinetic Analysis (SSITKA) coupled with Temperature-Programmed Surface Reaction (TPSR) experiments, using on line Mass Spectroscopy (MS) and in situ DRIFTS have been performed to study essential ...
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Article
Mechanistic aspects of the water-gas shift reaction on alumina-supported noble metal catalysts: In situ DRIFTS and SSITKA-mass spectrometry studies
(2007)Steady-state isotopic transient kinetic analysis (SSITKA) experiments coupled with mass spectrometry were performed for the first time to study essential mechanistic aspects of the water-gas shift (WGS) reaction over ...
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Article
Mechanistic studies of the water-gas shift reaction over Pt/Ce xZr1-xO2 catalysts: The effect of Pt particle size and Zr Dopant
(2012)A series of y wt % Pt/CexZr1-xO2 catalysts (y = 0.1, 0.5, and 1.0
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Article
Metal ion-assisted transformations of 2-pyridinealdoxime and hexafluorophosphate
(2012)Metal-ion mediated reactions of 2-pyridinealdoxime and hexafluorophosphate lead to Zn II complexes containing picolinic acid, picolinamide and monofluorophosphate (-2) as ligands. © 2012 The Royal Society of Chemistry.
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Book Chapter
Metal-catalyzed direct arylation of 1,2-azoles
(Academic Press, 2019)Over the last 20 years, there has been significant progress in the direct CH (het)arylation chemistry of a wide variety of (het)arenes. Herein, the application of direct CH arylation on the 1,2-azoles: pyrazoles, isothiazoles, ...
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Article
Metallo-Ligand Based 3d/4f Coordination Polymers: Synthesis, Structure and Magnetic Properties
(John Wiley and Sons Inc, 2022-04-27)Employment of N,N′-bis(2-hydroxy-4-carboxyphenyl)oxalamide (H6L) in Cu2+ chemistry afforded the mononuclear complex (Et4N)4[CuL] ⋅ 13H2O (A) which comprises a square planar [CuL]4− complex with several O donor atoms in its ...