Browsing by Title Artículos de revistas
Now showing items 2348-2367 of 2801
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(Sociedad Chilena de Quimica, 2011)In this work, bioactive compounds present in flower heads of German Chamomille, were extracted and isolated in pure forms by chromatographic techniques. These compounds, spiroketal enol ethers, present in both isomeric ...
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(The Royal Society of Chemistry, 2014)The addition of water to a chloroform solution of the Cu6 trigonal prism complex [Cu6(U6F)(U2OH)(U3OCH3)2(U2OCH3)2(3,5-Me2pz)6] (1) (3,5-Me2pz- = 3,5-dimethylpyrazolate) results in the formation of the Cu6 planar hexagonal ...
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(2012)Optically active poly(amide-imide) oligomers were synthesized by direct polycondensation between an aromatic diamine and a dicarboxylic acid both containing a diphenylsilylene unit. The reaction was carried out using ...
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(American Chemical Society, 2018)In the present work, we report the synthesis and characterization of two new heterometallic coordination polymers based on Ce-III and containing Co-II or Cu-II cations, assembled by the bifunctional ligand 1H-imidazole-4 ...
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(Public Library of Science, 2015)Reactors found in nature can be described as micro-heterogeneous systems, where media involved in each micro-environment can behave in a markedly different way compared with the properties of the bulk solution. The ...
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(AMER CHEMICAL SOC, 2004-07-06)The structure and aggregation number of a discotic lyotropic liquid crystal, prepared from tetradecyltrimethylammonium chloride (TDTMACI)/decanol (DeOH)/NaCI/H2O, have been examined using fluorescence quenching of pyrene ...
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(Elsevier S.A., 2003)The title compound corresponds to a molecular product of the hydrothermal reaction of CuCl2, Zn, and BIPY (BIPY=2,2′-bipyridine) in the presence of phosphoric acid. The structure of the neutral complex Cu 4(μ2-Cl)4(BIPY)2 ...
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(1990)Reorganization of the fertilized egg during completion of the first meiotic division was studied in the glossiphoniid leech Theromyzon rude. Rotation of the meiotic spindle, presumably as a result of changes in the length ...
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(ELSEVIER SCIENCE BV, 1998-11-26)A gene encoding laccase has been isolated from a genomic library of the white-rot basidiomycete Ceriporiopsis subvermispora constructed in Lambda GEM-ii. This gene (Cs-lcs1) contains an open reading frame of 2215 bp, ...
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(2007)In the title lanthanum complex, {[La(C4H4O5)(H2O)(3)] NO3}(n), the lanthanum cation is immersed in a nine-coordinate environment provided by a tridentate oxydiacetate (oda) ligand ( through two carboxylate and one ether O ...
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(International Union of Crystallography, 1987)
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(International Union of Crystallography, 1986)
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(International Union of Crystallography, 1986)
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(MUNKSGAARD INT PUBL LTD, 1991-05-15)(1) C12H9BrN2O, M(r) = 277.3, monoclinic, P2(1)/n, a = 8.167 (3), b = 17.541 (5), c = 8.457 (3) angstrom, beta = 114.67 (3)degrees, V = 1100 (2) angstrom 3, Z = 4, D(x) = 1.67 Mg m-3, lambda(Mo K-alpha) = 0.71069 angstrom, ...
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(MUNKSGAARD INT PUBL LTD, 1991-06-15)C28H32CuN4O2(2+).2Cl-.2H2O, M(r) = 627.06, monoclinic, P2(1)/c, a = 9.137 (2), b = 9.047 (2), c = 18.377 (7) angstrom, beta = 99.10 (3)-degrees, V = 1500.4 (9) angstrom3, Z = 4, D(x) = 1.529 Mg m-3, lambda(Mo K-alpha) = ...
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(MUNKSGAARD INT PUBL LTD, 1988-09-15)
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(International Union of Crystallography, 1987)
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(MUNKSGAARD INT PUBL LTD, 1993-09-15)The crystal consists of discrete dimeric units, di-mu-chloro-bis[chloro(4,4'-dimethyl-2,2'-bipyridine)copper(II)] hydrate, linked to one water molecule and to another unit by van der Waals forces. Each dimeric unit contains ...
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(International Union of Crystallography, 1991-04-15)[Cr(CO)5(C4H9NO)], M(r) = 279.2, monoclinic, P2(1)/c, a = 9.391 (7), b = 10.946 (7), c = 12.259 (9) angstrom, beta = 108.14 (5)degrees, V = 1197.6 (2) angstrom 3, Z = 4, D(x) = 1.55 g cm-3, lambda(Cu K-alpha) = 1.5418 ...
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(MUNKSGAARD INT PUBL LTD, 1993-02-15)(OC-6-22)-Carbonato-kappa2O-bis(ethylenediamine-kappa2N)cobalt(III) chloride, [Co(CO3)(C2H8-N2)2]Cl, M(r) = 274.59, orthorhombic, Pca2(1), a = 10.754 (4), b = 11.084(3), c = 8.564 (2) angstrom, V = 1020.8 (5) angstrom3, Z ...