José Renán García

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In the general setting of Grothendieck categories with enough projectives, we prove theorems that make possible to restrict the study of the problem of the existence of-covers and envelopes to the study of some properties of the class. We then prove the existence of flat covers and cotorsion envelopes of complexes, giving some examples. This generalizes the(More)
The gene coding for F5H from Eucalyptus globulus was cloned and used to transform an f5h -mutant of Arabidopsis thaliana , which was complemented, thus verifying the identity of the cloned gene. Coniferaldehyde 5-hydroxylase (F5H; EC 1.14.13) is a cytochrome P450-dependent monooxygenase that catalyzes the 5-hydroxylation step required for the production of(More)
Metal-organic frameworks assembled from Ln(III), Li(I) and rigid dicarboxylate ligand, H 2 BDC = terephthalic acid), were obtained under hydrothermal conditions. The isostructural MS1-6 crystallize in monoclinic P2 1 /c space group. While, in the case of Tb 3+ a mixture of at least two phases was obtained, the former one (MS7a) and a new monoclinic C2/c(More)
A series of 3D oxalate-bridged ruthenium-based coordination polymers with the formula (2) has been synthesized at room temperature through a self-assembly reaction in aqueous media and characterized by single-crystal and powder X-ray diffraction, elemental analysis, infrared and diffuse reflectance UV–Vis spectroscopy and thermogravimetric analysis. The(More)
The asymmetric unit of the title compound, [RhCl(2)(C(10)H(8)N(2))(2)]ClO(4), consists of one unit of the cationic complex [RhCl(2)(bipy)(2)](+) and one uncoordinated perchlorate anion. The Rh(III) atom is coordinated by four N atoms from two bipyridyl ligands and two Cl atoms, forming a distorted octa-hedral environment. The Cl ligands are cis. Two(More)
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