Browsing by Author "201-0010589"

Now showing items 1-9 of 9

    • Electrotopological state studies of copper(II) complexes with α-aminoacidates 
      Cornwell, E.; Larrazábal Rojas, Guillermo; Decinti Weiss, Emilio (Sociedad Chilena de Química, 2003)
      Descriptor combinations, consisting of the electrotopological state (E-state) indexes of some skeletal groups, the first-order 'ҳ molecular connectivity index and the logarithm of the statistical factor, are employed to ...
    • Formation and structure of a complex of sucrose with cobalt(III)bis(phenanthroline) 
      Parada Aliste, José; Bunel Torrealba, Sergio; Ibarra, Carmen; Larrazábal Rojas, Guillermo; Moraga, Exequiel; Gillitt, N. D.; Bunton, Clifford A. (ELSEVIER SCI LTD, THE BOULEVARD, 2001-07-12)
      Sucrose forms a dicationic complex with cobalt(III)bis(phenanthroline) which can be isolated as the sparingly water-soluble triiodide salt or the water-soluble chloride. The circular dichroism (CD) spectrum demonstrates ...
    • Isolation and characterization of cobalt (III) tris-D-aminosugars 
      Parada Aliste, José; Larrazábal Rojas, Guillermo; Mendoza, Jorge; Cañón, Walter; Ibarra, Carmen (SOCIEDAD CHILENA DE QUIMICA, 2006-06)
      Mixed complexes of animosugars and 1,10-phenanthroline (phen) with cobalt(III), with the composition Co(III)(phen)(2)sugar, disproportionate in aqueous solution in approximately one month, giving non ionic tris-aminosugar ...
    • Isolation and characterization of cobalt(III)tris-D-glucosamine 
      Parada Aliste, José; Larrazábal Rojas, Guillermo (SOCIEDAD CHILENA DE QUIMICA, 2004-06)
      Mixed bis-phenanthroline Co(III) complexes with amino sugars disproportionate over a period of months, giving non-ionic tris(aminosugar)complexes. The complex with alpha-D-glucosamine has the Lambda-configuration with ...
    • Isomerization studies of Delta,Lambda-[Ni(1,10-phen)(2)(S-aa)](+) systems 
      Larrazábal Rojas, Guillermo; Parada Aliste, José; Decinti Weiss, Emilio (SOCIEDAD CHILENA DE QUIMICA, 1999-03)
      The Delta-Lambda isomerization of partially resolved [Ni(1,10-phen)(2)(S-aa)](+) systems, where Saa is S-phenylalaninate, S-isoleucinate, S-leucinate, S-valinate, or S-alaninate, has been studied at 15, 20 and 25 degrees ...
    • Stereoselective synthesis of dodecaammine-i-hexoltetracobalt(III) in carbohydrates solution 
      Larrazábal Rojas, Guillermo; Bunel Torrealba, Sergio; Ibarra, Carmen; Parada Aliste, José (SOCIEDAD CHILENA DE QUIMICA, 2002-03)
      Reaction between cis-[Co(NH3)(H2O)(2)](3-) and ammonia in aqueous solution, in the presence of a carbohydrate, leads to the formation of the tetranuclear complex of cobalt (III): [Co-4(NH3)(12)(OH)(6)](6+) partially resolved. ...
    • The stereoselective synthesis of the Werner complex with substoichiometric sugars 
      Parada Aliste, José; Larrazábal Rojas, Guillermo; Aguirre Álvarez, Pedro; Zolezzi Carvallo, Santiago; Loewenstein Vega, Carmen; Garrido, Cristián (SOC CHILENA QUIMICA, 2008-03)
      A tetranuclear complex of Co(III) with hydroxo bridges, so-called "Werner Complex", was synthesized in the presence of several sugars (1-8) with partial resolution of this complex. The sugars in 10 mol % with respect to ...
    • Stereoselective synthesis of tris[di-M-hydroxy-bis-(ethylenediamine)] tetracobalt(III) 
      Parada Aliste, José; Larrazábal Rojas, Guillermo; Aguirre Álvarez, Pedro (SOCIEDAD CHILENA DE QUIMICA, 2005-06)
      Tetranuclear complexes of Co(III) with bidentate ligands and hydroxo bridges were synthesized in the presence of D-glucosamine, D-mannosamine. D- and L-xylose with the partial resolution the these complexes.
    • Studies of Δ,Λ-[M(1,10-phen)2(S-ala)]qX diastereoisomeric systems of nickel and zinc with different counter-anions 
      Decinti Weiss, Emilio; Contreras, Marlene; Moraga, E.; Larrazábal Rojas, Guillermo (1992)
      Δ,Λ-[M(phen)2(S-ala)]+(Xq-)1/q diastereoisomeric systems, in which M = nickel or zinc, phen = 1,10-phenanthroline, S-ala- = S-alaninate (q = 1 and 2), with a series of counteranions have been prepared as methanolic solutions ...