Now showing items 1-20 of 71

    • Synthesis and characterization of new Mannich base ligand. Structure of N, N-bis-(4,5-dimethyl-2-hydroxybenzyl)-N(2-pyridylmethyl)amine 

      Rodríguez Silva, Laura; Labisbal Viqueira, María Elena; Souto Muñoz, Óscar; Sousa Pedrares, Antonio (MDPI, 2006)
      Examples of interesting ligands previously requiring lengthy synthetic procedures have been prepared by one step routes, opening the way to more extensive studies of their complexes and to possible applications. New amine ...
    • Crystal structure of H4L1 (N-N’-Bis(o-hydroxybenzoyl)ethylenediamine) 

      Vázquez Fernández, María de los Ángeles; Fernández García, María Isabel; Fernández Fernández, Beatriz; González Noya, Ana María; Rodríguez Doutón, María Jesús (MDPI, 2006)
      Three bis-amide bis-phenoxy N2O2 ligands were obtained from the 2:1 molar reaction of phenyl salicylate and the diamines (1,2-diaminoethane, 1,3-diaminopropane and 1,4-diaminobutane) to yield H4Ln (H4L1, H4L2, H4L3 ...
    • Crystal Structure of H2L (N,N'-BIS(3-METHOXYSALICYLIDENE)-1,4-Diaminobutane 

      Fernández García, María Isabel; Vázquez Fernández, María de los Ángeles; Fernández Fernández, Beatriz; González Noya, Ana María; Maneiro Maneiro, Marcelino; Rodríguez Doutón, María Jesús (MDPI, 2007)
      Three multidentate Schiff-base ligands were obtained by condensation of different diamines (1,3-diaminopropane, 1,3-diamino-2,2-dimethylpropane, 1,4-diaminobutane) and 3-methoxy-2-hydroxybenzaldehyde to yield H 2 L n (H 2 ...
    • Synthesis of Multidentate Schiff Base Ligands. Crystal Structure of (N-N’-BIS(3-Ethoxysalicylidene)-1,3-Diamino-2,2-Dimethylpropane 

      Vázquez Fernández, María de los Ángeles; Fernández García, María Isabel; Fernández Fernández, Beatriz; González Noya, Ana María; Maneiro Maneiro, Marcelino; Rodríguez Doutón, María Jesús (MDPI, 2008)
      The hexadentate Schiff base ligands were prepared by condensation of 3-ethoxy-2-hydroxybenzaldehyde and different diamines (1,3-diaminopropane, 1,3-diamino-2,2-dimethylpropane, 1,4-diaminobutane) to yield H2Ln (H2L1, H2L2 ...
    • A novel zinc(II) complex with the ligand 2,20,200-(1,4,7-triazanonane-1,4,7-triyl)- triacetate (NOTA) 

      Pereira García, Iria; Macías Luaces, Alejandro Alberto; Bastida de la Calle, María Rufina; Valencia Matarranz, Laura (Int Union Crystallography, 2009)
      The zinc(II) complex with NOTA [2,20 ,200-(1,4,7-triazanonane1,4,7-triyl)triacetate] has previously been synthesized and studied in solution, but was not isolated. The corresponding title ZnII complex pentasodium(I) ...
    • The crystal structure of a compartmental heptadentate ligand 

      Fondo Busto, María Matilde; Ocampo Prado, Noelia; García Deibe, Ana María; Sanmartín Matalobos, Jesús (MDPI, 2009)
      2-(2-hydroxyphenyl)-1,3-bis[4-(2-hydroxyphenyl)-3-azabut-3-enyl]-1,3-imidazolidine (H3L) was obtained with high purity by Schiff's condensation between 5-bromosalicyaldehyde and triethylenetetramine. Its recrystallisation ...
    • Crystal structure of (n-n'-bis(3-ethoxysalicylidene)-1,2-diaminopropane 

      Vázquez Fernández, María de los Ángeles; Fernández García, María Isabel; Fernández Fernández, Beatriz; González Noya, Ana María; Maneiro Maneiro, Marcelino; Rodríguez Doutón, María Jesús (MDPI, 2009)
      Three hexadentate Schiff base ligands were obtained by condensation of 3-ethoxy-2-hydroxybenzaldehyde and different diamines (1,2-diaminoethane, 1,2-diaminopropane, 1,2-diamino-2-metylpropane) to yield H2Ln (H2L1, H2L2 and ...
    • Synthesis of dicompartimental schiff base ligands : Crystal structure of (n-n'-bis(3- methoxy or 3-ethoxysalicylidene)-1,2-diamine-2-methylpropane 

      Vázquez Fernández, María de los Ángeles; Fernández García, María Isabel; Fernández Fernández, Beatriz; González Noya, Ana María; Rodríguez Doutón, María Jesús (MDPI, 2010)
      The condensation of 3-methoxy or 3-ethoxy-2-hydroxybenzaldehyde and 1,2 diamine -2-methylpropane, to yield at the dianionic hexadentate Schiff base ligands H2 Ln (H2 L1 , H2 L2 respectively). The ligands have been characterised ...
    • Double imidazolidine condensation in a polynucleating Schiff base 

      Fondo Busto, María Matilde; García Deibe, Ana María; Ocampo Prado, Noelia; Sanmartín Matalobos, Jesús (MDPI, 2010)
      Condensation of pentaethylenehexamine and 3-bromo-5-chlorosalicylaldehyde yielded the bisimidazolidine Schiff base ligand 5,6\'-(1E,1\'E)-(2,2\'-(3,3\'-(ethane-1,2- diyl)bis(2-(3-bromo-5-chloro-2-hydroxyphenyl)imidazolid ...
    • Imine-tetrahydroquinazoline tautomerism in a tosilated Schiff base 

      García Deibe, Ana María; Portela García, Cristina; Sanmartín Matalobos, Jesús; Fondo Busto, María Matilde (MDPI, 2010)
      Condensation of the selectively tosilated N-(2-aminobenzyl)-4-methylbenzenesulfonamide with 2-hydroxybenzaldehyde gives rise to (E)-N-(2-(2- hydroxybenzylideneamino)benzyl)-4-methylbenzenesulfonamide in the solid state, ...
    • A chemosensor for dihydrogenphosphate based on an oxoazamacrocycle possessing three thiourea arms 

      Aldrey, Anxela; Macías, Alejandro; Bastida, Rufina; Zaragoza, Guillermo; Rama, Gustavo; Vázquez López, Miguel (Royal Society of Chemistry, 2012)
      We report a new H-bond macrocyclic chromogenic chemosensor in organic media, H3L, which displayed drastic changes in its UV–vis spectra revealing selectivity for dihydrogenphosphate over other inorganic anions, such as ...
    • Synthesis and antimicrobial activities of gold(I) sulfanylcarboxylates 

      Barreiro Magdaleno, Elena; Casas Fernández, José Sergio; Couce, María D.; Sánchez Díaz, Agustín; Seoane Prado, Rafael; Pérez Estévez, Antonio; Sordo Rodríguez, José (Springer, 2012)
      Reaction of NaAuCl4·H2O and thiodiglycol (1:3 molar ratio) with 3-(aryl)-2-sulfanylpropenoic acids, H2 xspa = [x:p = 3-phenyl-, f = 3-(2-furyl)-, t = 3-(2-thienyl)-, o-py = 3-(2-pyridyl)-, Clp = 3-(2-chlorophenyl)-, ...
    • Stereoselective Formation of Chiral Metallopeptides 

      Rama, Gustavo; Ardá, Ana; Maréchal, Jean-Didier; Gamba, Ilaria; Ishida, Hitoshi; Jiménez Barbero, Jesús; Vázquez Sentís, Marco Eugenio; Vázquez López, Miguel (Wiley, 2012-05-03)
      Playing into our hands: The achiral bipyridine amino acid fluorenylmethyloxycarbonyl 5‐amino‐3‐oxapentanoic acid (Fmoc‐O1PenBpy‐OH) has been used for the solid‐phase synthesis of metallopeptides. Circular dichroism, molecular ...
    • Biomimetic Catalysts for Oxidation of Veratryl Alcohol, a Lignin Model Compound 

      González Riopedre, Gustavo; Fernández García, María Isabel; Gómez Fórneas, Esther; Maneiro Maneiro, Marcelino (MDPI, 2013)
      Kraft pulp has to be bleached to eliminate the chromophoric structures, which cause a darkening of the pulp. In Nature, an equivalent role is assumed by ligninolytic enzymes such as lignin peroxidases, manganese peroxidases ...
    • Polyamine ligand-mediated self-assembly of gold and silver nanoparticles into chainlike structures in aqueousSolution: towards new nanostructured chemosensors 

      Fernández Lodeiro, Adrián; Fernández Lodeiro, Javier; Núñez, Cristina; Bastida, Rufina; Capelo, José Luis; Lodeiro, Carlos (Wiley, 2013)
      Polyamine ligands are very versatile compounds due to their water solubility and flexibility. In the present work, we have exploited the binding ability of a polyamine molecular linker (L 2−) bearing different functional ...
    • Custom‐Fit Ruthenium(II) Metallopeptides: A New Twist to DNA Binding With Coordination Compounds 

      Gamba, Ilaria; Salvadó, Iria; Rama, Gustavo; Bertazzon, Miriam; Sánchez López, Mateo Isidro; Sánchez-Pedregal, Víctor M.; Martínez Costas, José Manuel; Brissos, Rosa F.; Gamez, Patrick; Mascareñas Cid, José Luis; Vázquez López, Miguel; Vázquez Sentís, Marco Eugenio (Wiley, 2013)
    • Rhodamine‐appended bipyridine: XOR and OR logic operations integrated in an example of controlled metal migration 

      Núñez González, Cristina; Santos, Sergio M.; Oliveira, Elisabete; Santos, Hugo M.; Capelo, José Luis; Lodeiro, Carlos (Wiley, 2014)
      A new bipyridyl derivative 1 bearing rhodamine B as visible fluorophore was designed, synthesized and characterized as a fluorescent and colorimetric sensor for metal ions. Interaction with Cu2+, Zn2+, Cd2+, Hg+, and Hg2+ ...
    • Analytical strategies based on quantum dots for heavy metal ions detection 

      Vázquez González, Margarita; Carrillo Carrión, Carolina (SPIE Digital Library, 2014)
      Heavy metal contamination is one of the major concerns to human health because these substances are toxic and retained by the ecological system. Therefore, in recent years, there has been a pressing need for fast and ...
    • Programmed stereoselective assembly of DNA-binding helical metallopeptides 

      Gamba, Ilaria; Rama, Gustavo; Ortega-Carrasco, Elisabeth; Maréchal, Jean-Didier; Martínez Costas, José Manuel; Vázquez Sentís, Marco Eugenio; Vázquez López, Miguel (Royal Society of Chemistry, 2014)
      A flexible and versatile synthetic approach for the construction of water-stable DNA-binding chiral peptide helicates based on the solid phase peptide synthesis (SPPS) methodology is reported
    • Copper(II) Complexes of Cyclams Containing Nitrophenyl Substituents: Push–Pull Behavior and Scorpionate Coordination of the Nitro Group 

      Boiocchi, Massimo; Ciarrocchi, Carlo; Fabbrizzi, Luigi; Licchelli, Maurizio; Mangano, Carlo; Poggi, Antonio; Vázquez López, Miguel (American Chemical Society, 2015)
      The three nitrophenyl–cyclam derivatives (nitrocyclams): 1-(4-nitrophenyl)-1,4,8,11-tetraazacyclotetradecane (2), 1-(2-nitrophenyl)-1,4,8,11-tetraazacyclotetradecane (3), and 1-(2,4-dinitrophenyl)-1,4,8,11-tetraazacyclotetradecane ...





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