Browsing by Author "Garland, María Teresa"
Now showing items 1-20 of 112
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A common conformation of stabilized triphenyl phosphonium ylidic diesters with bulky alkoxy groups (2009)The phosphonium ylidic diesters, methyl and ethyl isopropyl and, methyl and ethyl t-butyl triphenylphosphoranylidene malonates, 1a,b and 2a,b, respectively, have the syn-anti conformation in solution, as in the crystal, ...
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(2007)The oxydiacetate-bridged copper(II) complex [Cu(oda)(1,10-phen)] · 3H2O (oda = oxydiacetate dianion, 1,10-phen = 1,10-phenanthroline) has been characterized. The complex is dinuclear and centrosymmetric with each copper ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2004-07)Azorella cyptantha yielded the diterpenes, azorellolide and the dihydroderivative, dihydroazorellolide, together with the known yaretol and 1alpha,10beta,4beta,5alpha-diepoxy-7alpha-germacran-6beta-ol. Both possess a carbon ...
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(WILEY-BLACKWELL PUBLISHING, 2011-01)The structure of the ionic title compound, (C(5)H(7)N(6))(2)[Nd(2)(C(5)O(5))(4)(H(2)O)(8)], consists of anionic dimers built around an inversion centre and is made up of an NdIII cation, two croconate (croco) dianions and ...
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(International Union of Crystallography, 1995)The CoII atom in the title complex. [CoBr2(C19H28N2O-Si)], has a tetrahedral environment and is coordinated to bis(o-dimethylaminomethylphenyl)methylsilanol in a bidenate fashion and to two Br anions
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(BLACKWELL PUBLISHING, 2005-06)The title ionic zinc - acetate complex, [Zn(C2H3O2)(C12H12N2) (2)](2)(S3O6) center dot 5H(2)O, contains a ZnN4O2 nucleus provided by the three bidentate ligands acting in a chelating mode. The trithionate unit, in turn, ...
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(1995)Bromination of 2,4,6-tri-O-benzoyl-3-deoxy-d-erytro-hex-2-enono-1,5-lactone (1) took place diastereoselectively to afford a single product: 2,4,6-tri-O-benzoyl-2,3-dibromo-3-deoxy-d-altrono-1,5-lactone (2). The configuration ...
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(2013)The title cobalt complex (C10H38Co2O26) consists of [Co(H2O)4(C10H2O8)]2-n anionic chains, balanced by [(Co(H2O)6]2+ cations and eight solvato water molecules, some of which are disordered. The chains are formed by Co(H2O)4 ...
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(BLACKWELL PUBLISHING, 2005-11)
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(BLACKWELL MUNKSGAARD, 2004-02)The structure of the title compound, catena-poly[[bis-(1,1,1,5,5,5-hexafluoropentane-2,4-dionato-kappa(2)O,O')zinc(III)]-mu-4,4'-bipyridine-kappa(2)N:N'], [Zn(C5HF6O2)(2)(C10H8N2)](n), consists of polymeric chains, running ...
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(BLACKWELL MUNKSGAARD, 2005-05)In the title compound, [Cu(C15H20N2O4)](n), the copper(II) coordination is square planar. The anionic L-tyrosyl-L-leucinate ligand binds in an N,N',O-tridentate mode to one Cull cation on one side and in an O-monodentate ...
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(2009)Computed bond lengths and angles of methyl ethyl and dimethyl triphenyl phosphonium ylidic diesters, 1b, c, respectively, are similar to those in the crystal, as for the diethyl ester, 1a, where both acyl oxygens are anti ...
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(Sociedad Chilena de Química, 1988)Se han determinado las propiedades magnéticas y espectroscópicas de los complejos de cobre (II) con bases de Schiff,[Cu(BS)Cl2]. Las bases de Schiff son: N-R-Salicilaldimina, donde R es 2-piridina: 4-metil-2-piridina; o ...
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(Elsevier Ltd, 1996)The conformation in 2H2O of 4-thio-L-lyxono-1,4-lactone (1) was studied by nuclear magnetic resonance spectroscopy, by means of homonuclear (J(1(H),1(H))) and heteronuclear (J(1(H),13(C))) coupling constants. The couplings ...
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(TAYLOR & FRANCIS LTD, 2007-01)The diacyl ylid, 3-triphenylphosphoranylidene-2,4-pentanedione 2 can adopt conformations with one oxygen syn- and the other anti- to phosphorus 2a as in the crystal, or with both oxygens syn- to phosphorus 2b. In solution, ...
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(2013)In ylidic triphenylphosphonium carboxylic esters the ester oxygen can be oriented towards (syn) or away (anti) from phosphorus, but except for small ylidic ester groups, e.g., Me, the anti conformer is dominant. With ...
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(AMER CHEMICAL SOC, 2007-08)Two new ligands, 2-[(bis(2-pyridylmethyl)amino)methyl]-4-methylphenol (HL) and 2-[(bis(2-pyridylmethyl)amino)methyl]- 4-methyl-6-(methylthio)phenol (HSL), were synthesized and were used to prepare the trinuclear copper(II) ...
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(ELSEVIER, 2006-01-21)Zeolites with high Cr(III) exchange capacity were synthesized from kaolin and natural mordenite. The intermediate phases and final products were characterized by X-ray diffraction, FTIR spectroscopy, scanning electron ...
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(AMER CHEMICAL SOC, 2006-03-20)The [Os-III(CN)(6)](3-) anion is prepared by chemical oxidation in aqueous solution and isolated as yellow prisms of [Ph4P](3)[OSIII(CN)(6)]center dot 6H(2)O (1). This species crystallizes in the triclinic space group Of ...
