Now showing items 1-20 of 26

    • 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 ...
    • 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 simple route to dinuclear metal complexes of a sulfonamide ligand with a potential interest in the catalysis field 

      Sanmartín Matalobos, Jesús; Portela García, Cristina; Fondo Busto, María Matilde; García Deibe, Ana María (MDPI, 2015)
      We report here the straightforward synthesis of some d-block metal dimers of a Schiff base ligand obtained by condensation of 2‑tosylaminomethylaniline with 4-formyl-3-hydroxybenzoic acid (H2L). The easy bideprotonation ...
    • Synthesis and X-ray Crystal Structure of the Thiosemicarbazone L bis(4-N-Methyl-Thiosemicarbazone)-4,4'-Diacetylphenylmethane 

      Carballido Piñeiro, Rocío; Pedrido Castiñeiras, Rosa María; Bermejo Patiño, Manuel Rafael; Gómez Fórneas, Esther; Maneiro Maneiro, Marcelino (MDPI, 2015)
      We report herein the synthesis of the tetradentate thiosemicarbazone ligand bis(4-N-methyl-thiosemicarbazone)-4,4'-diacetylphenylmethane, which is a suitable precursor in supramolecular chemistry for the preparation of ...
    • Synthetic Route to Novel Asymmetric Tetradentate Ligands Containing Both Amino and Imino Groups 

      González Riopedre, Gustavo; Fernández García, María Isabel; González Noya, Ana María; Pedrido Castiñeiras, Rosa María; Rodríguez Silva, Laura; Maneiro Maneiro, Marcelino (MDPI, 2015)
      The synthesis of a new asymmetric ligand (E)-4-bromo-2-(((2-((5-bromo-2-hydroxybenzyl)(methyl)amino)ethyl)imino)methyl)phenol, which was conceived to model the asymmetry in the active site of peroxidase/catalase mimics, ...
    • Synthesis and Characterization of a New Triptycene-Based Tripod 

      Sanmartín Matalobos, Jesús; García Deibe, Ana María; Fondo Busto, María Matilde; Pérez Lustres, José Luis; Bhowmick, Sourav; Das, Neeladri (MDPI, 2015)
      Herein, we report an efficient and facile synthesis of a new triptycene based tripodal ligand containing both imine functionality and phenolic pendant arms. This tripodal unit is a potential building block for constructing ...
    • Different Bridging Preferences of Zinc and Palladium in Dimeric Complexes of a Ligand Based on 2-Tosylaminomethylaniline 

      Sanmartín Matalobos, Jesús; Portela García, Cristina; Fondo Busto, María Matilde; García Deibe, Ana María (MDPI, 2015)
      We report here the formation of dimeric palladium(II) and zinc(II) complexes of a ligand (H2L) derived from the condensation of 2 tosylaminomethylaniline and 2,3-dihydroxybenzaldehyde.The structures in solution of the ...
    • H-Bonded Polymerisation of Alternate Δ and Λ Metallohelicates 

      García Deibe, Ana María; Portela García; Portela García, Cristina; Fondo Busto, María Matilde; Sanmartín Matalobos, Jesús (MDPI, 2015)
      he neutral cadmium(II) complex Cd(HL)2 (H2L = 2-[(1H-imidazol-2-yl)methyleneamino]phenol) is chiral and it can be considered as a simple metallohelicate, with its corresponding Δ and Λ enantiomers. In the solid state, its ...
    • Computational and Experimental Studies Into the Conformations of a Triptycene-Based Ditopic Ligand 

      Sanmartín Matalobos, Jesús; García Deibe, Ana María; Amoza Dávila, Martín; Fondo Busto, María Matilde; Mota, Antonio J.; Bhowmick, Sourav; Das, Neeladri (MDPI, 2015)
      We present a combined computational and experimental study of the possible conformations adopted by a ditopic Schiff base ligand based on triptycene. We have performed DFT calculations on a Y-shaped Schiff base ligand ...
    • Total Hydrolysis of a New Imidazolidine Induced by ZnII 

      Fondo Busto, María Matilde; Doejo Paz, Jesús; García Deibe, Ana María; Sanmartín Matalobos, Jesús; González Bello, Concepción (MDPI, 2015)
      2,2´-(2-(2-hydroxyphenyl)imidazolidin-1,3-diyl)diethanol(H3L) was obtained by condensation between 2-hydroxybenzaldehyde and N,N'-bis(2-hydroxyethyl)ethylenediamine. Its potential ability as NNOOO donor towards ZnII was ...
    • Crystal structure of H4L (N-N’-Bis(o-hydroxybenzoyl) 1,4 -diaminobutane 

      González Riopedre, Gustavo; Fernández García, María Isabel; Maneiro Maneiro, Marcelino; González Noya, Ana María; Pérez Otero, Yolanda; Fernández Fernández, Beatriz; Vázquez Fernández, María de los Ángeles (MDPI, 2015)
      A bis-amide bis-phenoxi N2O2 ligand was obtained from the 2:1 molar reaction of phenyl salicylate and the diamine, 1,4-Diaminobutane, to yield H4L. The ligand has been characterised by elemental analysis, IR, and 1H and ...
    • Synthesis of iminophosphoranes as ligands for organometallic compounds 

      Fernández Figueiras, Adolfo; Lucio Martínez, Fatima; Munín Cruz, Paula; Reigosa Chamorro, Francisco; Vila Abad, José Manuel; Pereira Lorenzo, María Teresa; Polo Ces, Paula María (MDPI, 2016)
      Iminophosphoranes are organic compounds of general composition R3P=NR and can be considered as nitrogen analogues to phophorus ylides. They can be obtained by the Staudinger and Kirsanov reactions. This compounds have ...
    • Design and Synthesis of Crown Ether Thiosemicarbazones 

      Lucio Martínez, Fatima; Munín Cruz, Paula; Reigosa Chamorro, Francisco; Fernández Figueiras, Adolfo; Polo Ces, Paula María; Pereira Lorenzo, María Teresa; Vila Abad, José Manuel (MDPI, 2016)
      Thiosemicarbazones are well known compounds that show antitumoral and antibacterial proprieties[1] ; while crown ether moiety acts as ion sensor to entrap cations size-selectively from the environment, implied in the ...





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