Now showing items 1-13 of 13

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      (1E,3E)-4-(tetra-O-acetyl-D-arabino-tetritol-1-yl)-1-(4-tolyl)-1,2-diaza-1, 3-butadiene  [Article]

      Diánez Millán, María Jesús; Estrada de Oya, María Dolores; Pérez Garrido, Simeón (International Union of Crystallography, 2006)
      n the title compound, C 21 H 26 N 2 O 8 , the configurations of the three chiral centres are known from the synthesis, corre- sponding to a d - arabino configuration. Both double bonds show the E configuration ...
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      Benzyltrimethylammonium dihydrogen orthophosphate monohydrate  [Article]

      Criado Vega, Alberto; Diánez Millán, María Jesús; Estrada de Oya, María Dolores; Pérez Garrido, Simeón; Belsley, Michael Scott; Matos Gomes, Etelvina M. de (International Union of Crystallography, 2005)
      The title compound, C 10 H 16 N + H 2 PO 4 H 2 O, crystallizes in the centrosymmetric space group P 2 1 / c with two independent molecules in the asymmetric unit. Therefore, nonlinear ...
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      Lattice-Energy Calculations on Phenothiazine and Phenoselenazine Modifications  [Article]

      Estrada de Oya, María Dolores; Conde Amiano, Alejandro; Márquez Delgado, Rafael (International Union of Crystallography, 1983)
      Lattice-energy calculations in the atom-atom potential approach have been performed for observed and isostructurally derived hypothetical forms of phenothiazine and phenoselenazine compounds. Energy minimizations with ...
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      Molecular-Packing Analysis of Some Glucofuranoimidazolidine Crystals  [Article]

      Estrada de Oya, María Dolores; Conde Amiano, Alejandro; Márquez Delgado, Rafael (International Union of Crystallography, 1987)
      Lattice-energy minimization for seven glucofuranoimidazolidine crystals was carried out in the atom-atom approach using an (exp-6-1) form for atom-pair interactions. Molecular rotation and translation and also internal ...
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      N-acetyl-2,3,4,6-tetra-O-acetyl-N-benzyl-β-D-glucopyranosylamine  [Article]

      Diánez Millán, María Jesús; Estrada de Oya, María Dolores; López Castro, Amparo; Pérez Garrido, Simeón (International Union of Crystallography, 1997)
      The solid-state conformation of the title compound, C23H29NOIo, has been unequivocally established. The configuration at C 1 is/3-D-glucopyranose and the pyranose ring is essentially a perfect chair. Only the E ...
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      N1,N1-Diethyl-N 2-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)acetamidine  [Article]

      Diánez Millán, María Jesús; Estrada de Oya, María Dolores; López Castro, Amparo; Pérez Garrido, Simeón (International Union of Crystallography, 2001)
      The PII proteins from the cyanobacteria Synechococcus sp. PCC 7942 and Synechocystis sp. PCC 6803 have been crystallized and high-resolution structures have been obtained using X-ray crystallography. The core of these ...
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      Structure and Molecular-Packing Analysis of a Heptofuranosoimidazolidine-2-Thione  [Article]

      Estrada de Oya, María Dolores; Conde Amiano, Alejandro; Márquez Delgado, Rafael (International Union ofCrystallography, 1987)
      1-(4-Bromophenyl)-3-ethyl-(3,5,6,7-tetra-0- acetyl-1,2-dideoxy-n-glycero-P-n-talo-heptofuranoso )- * IUPAC name: 1-{6-acetoxy-3-bromophenyl-2-thioxo-2,3,3a,- 5,6,6a-tetrahydro-1H-furo[2,3-d]imidazol-5-yl ...
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      Structure of l'-(p-Bromophenyl)-3'-ethyl- 1',3', 4',5'-tetrahydro- 1,2-dideoxy-D-glycero- L-gluco-heptofuranoso[ 1,2-d]imidazole-2'-thione,* C16H21BrN205 S  [Article]

      Estrada de Oya, María Dolores; Conde Amiano, Alejandro; Márquez Delgado, Rafael (International Union of Crystallography, 1983)
      M,=433.3, orthorhombic, P2,2~2,, a= 8.466 (2), b .... 27. 136 (5), c - 7.776 (5) A, V = 1786(1)A3, Z=4, D,,,= 1.60(l),Dx= 1.61Mgm -3, Mo Ka, 2 = 0.7107 A, a = 2.42 mm-', F(000) = 888, 300 K, R =0.045 for 1 196 observed ...
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      Structure of l'-(p-Bromophenyl)-3'-ethyl- 1',3t,4',5 t -tetrahydro- 1,2-¢~• deoxy-D-glyeero-Dgu/ a-heptofuranoso[ 1,2-d]imidazole-2'-thione,* C16H21BrN2OsS  [Article]

      Estrada de Oya, María Dolores; Conde Amiano, Alejandro; Márquez Delgado, Rafael (International Union of Crystallography, 1984)
      M r = 433.3, monoclinic, P21, a = 6.924 (3), b=8.661 (1), c=15.039(3)A, #=96.92(3) ° , v= 895.3 (4) A a, Z= 2, D, = 1.598 (5), Dx= 1.607 Mg m -a, Mo Ka, 2 = 0.7107/k, # = 2.42 mm -1, F(000) = 444, T = 300 K, R = 0.039 ...
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      Study of a diastereoisomeric dihydrothiophene derivative at 150 K  [Article]

      Diánez Millán, María Jesús; Estrada de Oya, María Dolores; López Castro, Amparo; Pérez Garrido, Simeón (International Union of Crystallography, 1999)
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      X-ray Structure and Molecular-Packing Analysis of a Glucofuranosoimidazolidine- 2-thione  [Article]

      Estrada de Oya, María Dolores; Conde Amiano, Alejandro; Márquez Delgado, Rafael (International Union of Crystallography, 1986)
      1-(4-Bromophenyl)-3-ethyl-(3,5,6-tri-Oacetyl- 1,2-dideoxy-~t-L-glucofuranoso)[2,1-d]imidazolidine- 2-thione,* C21H25BrN2OTS, M,= 529.40, orthorhombic, P2~2121, a= 12.056 (7), b= 22.420 (9), c =8.841 (2)A, V=2390(2) A3, ...
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      X-Ray Structure and Molecular-Packing Analysis of Artemetin  [Article]

      Estrada de Oya, María Dolores; Conde Amiano, Alejandro; Márquez Delgado, Rafael; Jiménez Garay, Rafael (International Union of Crystallography, 1987)
      5-Hydroxy-3,3' ,4',6,7-pentamethoxyflavone (flavone is 2-phenyl-4H-1-benzopyran-4-one ), C20H20- 08, M,= 388·4, monoclinic, P2/n, a= 7·518 (4), b=13·625(3), C=17·766(5)Á, P=98·52(3) 0 , V = 1803 (l)Á\ Z=4, Dx= ...
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      X-Ray Structure of 8alpha-Acetoxy-1,3,4,10-Tetrahydro-1alpha,10alpha-Epoxyachillin  [Article]

      Estrada de Oya, María Dolores; Conde Amiano, Alejandro; Márquez Delgado, Rafael; Jiménez Garay, Rafael (International Union of Crystallography, 1986)
      (5aI-I,6/~-I, 11 aH)-8a-Acetoxy- 1,5-dihydro-2- oxo-lct,10ct-epoxyguaian-6,12-olide, C~7H2206, Mr= 322.3, orthorhombic P2~212~, a= 14.964(6), b= 17.057(4), c=6.218(4)A, V=1587(1)A 3, Z=4, D,n=l.349(5), D x=l.349Mgm -3, ...