Chemistry (Scholarly Publications): Recent submissions
Now showing items 601-620 of 931
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Molecular Dynamics of the Transport of Ions in a Synthetic Channel
(2014)Abstract. Molecular dynamics investigations of ions in certain non-bulk media predict that they are capable of significantly greater mobilities than when in the liquid state. The entries of Li+, Na+, and K+ ions from ... -
Detection of explosive vapors with a charge transfer molecule: self-assembly assisted morphology tuning and enhancement in sensing efficiency.
(2010)Use of a fluorescent organic molecule consisting of binaphthyl functionalized with donor?acceptor substituted stilbenes for the detection of dinitrotoluene (DNT) and trinitrotoluene (TNT) vapors and enhancement in its ... -
Asymmetric spin crossover behaviour and evidence of light-induced excited spin state trapping in a dinuclear iron(II) helicate
(2009)Reported herein are the synthesis, structural and magnetic characterisation of a dinuclear FeII triple helicate that displays an unprecedented reversible asymmetric high spin to low spin crossover characterised by a thermal ... -
Micro- or nanorod and nanosphere structures derived from a series of phenyl-porphyrins
(2014)We examine here a series of meso-phenyl porphyrin micro- and nanostructures. Optical absorption and emission spectroscopy imaging and atomic force microscopy are used to investigate the effect of peripheral groups in nano- ... -
From thioether substituted porphyrins to sulfur linked porphyrin dimers: An unusual SNAr via thiolate displacement?
(2014)Treatment of meso 2-ethylhexyl-3-mercaptopropionate substituted porphyrins with base at room temperature generated a porphyrin thiolate anion which in situ reacted in a nucleophilic aromatic substitution (SNAr) reaction ... -
Polymorphism of metal-organic frameworks: direct comparison of structures and theoretical N2-uptake of topological - and -isomers.
(2014)The syntheses, calculated surface areas and N2 uptakes of two highly augmented {Cu}2 `paddlewheel?-based MOFs provide a direct comparison of tbo and pto framework polymorphs with identical composition. -
Self-assembly of hybrid organic-inorganic polyoxovanadates: functionalised mixed-valent clusters and molecular cages
(2012)Herein we report the intra- and inter-molecular assembly of a {V 5O 9} subunit. This mixed-valent structural motif can be stabilised as [V 5O 9(L 1-3) 4] 5-/9- (1-3) by a range of organoarsonate ligands (L 1-L 3) whose ... -
Partial spin crossover behaviour in a dinuclear iron(ii) triple helicate.
(2011)Reported herein are the synthesis, structural, magnetic and Mossbauer spectroscopic characterisation of a dinuclear Fe(II) triple helicate complex [Fe2(L)3](ClO4)4.xH2O (x = 1?4), 1(H2O), where L is a bis-bidentate ... -
Aggregation of dinuclear {Fe2hpdta} units to form polynuclear oxy/hydroxy-bridged Fe(III) coordination complexes.
(2010)An approach for the preparation of oxy/hydroxy briged FeIII clusters that takes advantage of hydrolytic condensations of well defined {Fe2hpdta(H2O)4} building units is presented. Co-ligands such as tripodal H3tea or ... -
Structural analysis of hydroxyapatite coating on magnetite nanoparticles using energy filter imaging and electron tomography.
(2010)Magnetic nanoparticle (MNP) composites with a magnetite (Fe 3O4) core and a hydroxyapatite (HAp, Ca 10(PO4)6(OH)2) coating were prepared using a precipitation method and a subsequent hydrothermal treatment. The hydrothermal ... -
A facile "bottom-up" approach to prepare free-standing nano-films based on manganese coordination clusters.
(2013)We present herein a novel method to prepare free-standing Dried Foam Films (DFFs) whereby individual polynuclear manganese complexes cover quantitatively the holes of micro-grids; the fabricated, homogeneous films have a ... -
Ligand displacement for fixing manganese: relevance to cellular metal ion transport and synthesis of polymeric coordination complexes.
(2013)A dinuclear manganese(III) complex (1) of an N-(carboxymethyl)-N-[3,5-bis(?,?-dimethylbenzyl-2-hydroxybenzyl)]glycine (HDA) ligand (L) binds a manganese(II) species through displacement of its solvating ligands by appropriately ... -
Supramolecular approaches to metal-organic gels using 'Chevrel-type' coordination clusters as building units.
(2013)A novel hexanuclear {Mn6} coordination complex with octahedral topology has been prepared and was subsequently used as a building unit for the construction of coordination polymers and metal-organic gels; the latter exhibit ...
