Search Results - "Ramos, M. Luísa"
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Understanding the Interaction between Trivalent Lanthanide Ions and Stereoregular Polymethacrylates through Luminescence, Binding Isotherms, NMR, and Interaction with Cetylpyridinium Chloride
Published in Langmuir (26-11-2013)“…Complexation of isotactic, syndiotactic, and atactic poly(methacrylic acid), PMA, with trivalent lanthanide ions has been studied in water at a degree of…”
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Limiting diffusion coefficients of α,ω-amino acids in water and in sodium chloride aqueous solutions at 298.15 K
Published in The European physical journal. E, Soft matter and biological physics (01-07-2019)“… Transport properties of model compounds in aqueous solutions such as amino acids can provide valuable information in order to understand the complex…”
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NMR, DFT and luminescence studies of the complexation of Zn(II) with 8-hydroxyquinoline-5-sulfonate
Published in Dalton transactions : an international journal of inorganic chemistry (28-11-2011)“…Multinuclear ((1)H, (13)C) magnetic resonance spectroscopy, DFT calculations and luminescence techniques have been used to study 8-hydroxyquinoline-5-sulfonate…”
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4
Does cation dehydration drive the binding of metal ions to polyelectrolytes in water? What we can learn from the behaviour of aluminium(III) and chromium(III)
Published in Physical chemistry chemical physics : PCCP (14-06-2012)“…Much stronger binding is seen in aqueous solutions between the anionic polyelectrolyte potassium poly(vinyl sulfate) and the substitution labile aluminium(III)…”
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5
NMR, DFT and luminescence studies of the complexation of Al(III) with 8-hydroxyquinoline-5-sulfonate
Published in Dalton transactions : an international journal of inorganic chemistry (28-10-2012)“…Multinuclear ((1)H, (13)C and (27)Al) magnetic resonance spectroscopy (1D and 2D), DFT calculations and fluorescence have been used to study the complexation…”
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Gel Formation and Interpolymer Alkyl Chain Interactions with Poly(9,9-dioctylfluorene-2,7-diyl) (PFO) in Toluene Solution: Results from NMR, SANS, DFT, and Semiempirical Calculations and Their Implications for PFO β-Phase Formation
Published in Macromolecules (25-01-2011)“…Interactions between polymer chains of poly(9,9-dioctylfluorene-2,7-diyl) (PF8) have been studied in toluene solution over a wide concentration range using…”
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Indigo Carmine Binding to Cu(II) in Aqueous Solution and Solid State: Full Structural Characterization Using NMR, FTIR and UV/Vis Spectroscopies and DFT Calculations
Published in Molecules (Basel, Switzerland) (07-07-2024)“…The food industry uses indigo carmine (IC) extensively as a blue colorant to make processed food for young children and the general population more attractive…”
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Nanostructuring with Surfactants: The Self-Assembly of a New Poly(thiophene-phenylene) Conjugated Polymer Bearing Azacrown Ether Pendant Groups
Published in Langmuir (04-10-2022)“…We report the synthesis of a new conjugated polymer bearing crown ether moieties, poly[(N(1-aza-[18]crown-6)carbamido)thiophene-2,5-diyl-alt-1,4-phenylene]…”
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9
Binding of divalent and higher valent metal ions to surfactants and polyelectrolytes
Published in Current opinion in colloid & interface science (01-11-2017)“…Interactions between ionic organic systems, such as surfactants or polyelectrolytes, and divalent or higher valent metal ions have been studied extensively for…”
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Synthesis, Characterization and Evaluation of the Antibacterial and Antitumor Activity of HalogenatedSalen Copper (II) Complexes derived from Camphoric Acid
Published in Applied organometallic chemistry (01-05-2020)“…Platinum metal complexes are the most common chemotherapeutics currently used in cancer treatment. However, the frequent adverse effects, as well as acquired…”
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Poly(9‐undecyl‐9‐methyl‐fluorene) and poly(9‐pentadecyl‐9‐methyl‐fluorene): Synthesis, solution structure, and effect of side chain asymmetry on aggregation behavior
Published in Journal of polymer science. Part B, Polymer physics (01-07-2019)“…ABSTRACT We report on solution aggregates and backbone conformation of poly(9‐undecyl‐9‐methyl‐fluorene) (PF1‐11) and poly(9‐pentadecyl‐9‐methyl‐fluorene)…”
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Spectroscopic and DFT Study of Alizarin Red S Complexes of Ga(III) in Semi-Aqueous Solution
Published in Photochem (01-03-2023)“…A combined spectroscopic and computational approach has been used to study in detail the complexation between Ga(III) and ARS in solution. The NMR results…”
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Oxocomplexes of Mo(VI) and W(VI) with 8-hydroxyquinoline-5-sulfonate in solution: structural studies and the effect of the metal ion on the photophysical behaviour
Published in Dalton transactions : an international journal of inorganic chemistry (28-11-2015)“…Multinuclear ((1)H, (13)C, (95)Mo and (183)W) NMR spectroscopy, combined with DFT calculations, provides detailed information on the complexation between the…”
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Effect of pH in the structure and mass transport by diffusion of theophylline
Published in The Journal of chemical thermodynamics (01-07-2017)“…•Ternary mutual diffusion coefficients of aqueous theophylline plus HCl solutions.•Ternary mutual diffusion coefficients of aqueous theophylline plus NaOH…”
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Structural and Electronic Properties of Poly(9,9-dialkylfluorene)-Based Alternating Copolymers in Solution: An NMR Spectroscopy and Density Functional Theory Study
Published in Journal of physical chemistry. C (05-09-2013)“…The structural and electronic properties of three alternating poly(9,9-dialkylfluorene) copolymers, poly[2,7-(9,9-bis(octyl)-fluorene)-alt-benzothiadiazole]…”
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Low temperature FTIR, Raman, NMR spectroscopic and theoretical study of hydroxyethylammonium picrate
Published in Journal of molecular structure (15-01-2016)“…A combined experimental (infrared, Raman and NMR) and theoretical quantum chemical study is performed on the charge–transfer complex hydroxyethylammonium…”
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Conformational Studies of Poly(9,9-dialkylfluorene)s in Solution Using NMR Spectroscopy and Density Functional Theory Calculations
Published in The journal of physical chemistry. B (03-09-2009)“…Relationships have been obtained between intermonomer torsional angle and NMR chemical shifts (1H and 13C) for isolated chains of two of the most important…”
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Uncommon temperature effect on the interaction between levodopa and β-cyclodextrin seen by diffusometry and NMR spectroscopy
Published in The Journal of chemical thermodynamics (01-09-2017)“…Experimental ternary mutual diffusion coefficients (D11, D22, D12 and D21, obtained by the Taylor dispersion method, are reported for aqueous solutions of…”
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Structural considerations and reactivity of peroxocomplexes of V(V), Mo(VI) and W(VI)
Published in Dalton transactions : an international journal of inorganic chemistry (01-01-2011)“…In this perspective we will discuss recent results on structural aspects of peroxocomplexes of transition metals having the d(0) configuration (V(V), Mo(VI),…”
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Effect of 2-Hydroxypropyl-β-cyclodextrin on the diffusion behaviour of L-dopa in aqueous solutions
Published in The Journal of chemical thermodynamics (01-06-2016)“…•Ternary diffusion coefficients for aqueous L-dopa and 2-Hydroxypropyl-β-cyclodextrin.•Diffusion of L-dopa driven by 2-Hydroxypropyl-β-cyclodextrin…”
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