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Unusual hydrogen bond patterns contributing to supramolecular assembly: conformational study, Hirshfeld surface analysis and density functional calculations of a new steroid derivative
(Royal Society of Chemistry - RSCCambridge, 2014-09)
A structural and conformational study of 3β-acetoxy-17-chloro-16-formyl-5α-androstan-16-ene has been carried out by using X-ray analysis and M06-2X density functional calculations. The compound crystallizes with three ...
The MX2 macromolecular crystallography beamline: a wiggler X-ray source at the LNLS
(WILEY-BLACKWELL PUBLISHING, INC, 2009)
The Brazilian Synchrotron Light Laboratory [Laboratorio Nacional de Luz Sincrotron (LNLS), Campinas, SP, Brazil] is the first commissioned synchrotron light source in the southern hemisphere. The first wiggler macromolecular ...
Influence of the Fe Concentration on the Superconducting Properties of Fe1-ySe
(Springer/Plenum Publishers, 2015-04)
We present a comparative study of electrical transport properties in the normal state and in the dissipative superconducting state between pure β-FeSe phase and Fe deficient Fe1−ySe crystals. We discuss the influence of ...
Functionalization, compatibilization and properties of polyolefin composites with natural fibers
(MDPI AG, 2010-11-15)
The article is focused on analyzing the effect of functionalization and reactive processing on the morphological, thermal, rheological and mechanical properties of composites of isotactic polypropylene (PP), polystyrene ...
Manipulation of Mg2+-Ca2+ Switch on the Development of Bone Mimetic Hydroxyapatite
(American Chemical Society, 2017-05-20)
Ionic substitution can affect essential physicochemical properties leading to a specific biological behavior upon implantation. Therefore, it has been proposed as a tool to increase the biological efficiency of calcium ...
Exchange Interactions Through π π Stacking in the Lamellar Compound [{Cu(bipy)(en)}{Cu(bipy)(H2O)}{VO3}4]n
(American Chemical Society, 2011-12)
Structural, magnetic, and powder and single crystal electronic paramagnetic resonance (EPR) studies are reported for [{Cu(bipy)(en)}{Cu(bipy)(H2O)}{VO3}4]n, a new copper-vanadium hybrid organic-inorganic compound containing ...
Carboxylate-Bridged Copper(II)-Lanthanide(III) Complexes [{Cu3Ln2(oda)6(H2O)6}.12H2O]n (Ln = Dy, Ho, Er, Y; oda = oxydiacetate
(American Chemical Society, 2002-12)
The hydrothermal reaction of Ln2O3 (Ln = Dy and Ho), Cu(OAc)2·2H2O, and oxydiacetic acid in the approximate mole ratio of 1:3:8 resulted in the formation of two new members of the isostructural series of polymers formulated ...
The Cerro Aguas Calientes caldera, NW Argentina: An example of a tectonically controlled, polygenetic collapse caldera, and its regional significance
(Elsevier Science, 2010-07)
Polygenetic, silicic collapse calderas are common in the central Andes. Here we describe in detail the Cerro Aguas Calientes caldera in NW Argentina, which comprises two caldera-forming episodes that occurred at 17.15. Ma ...
Análise das ligações de hidrogênio em sais complexos e polímeros de coordenação do íon ditionato
(Universidade Federal de Santa MariaBRQuímicaUFSMPrograma de Pós-Graduação em Química, 2013-08-12)
In this work six aqua complexes of the transition metals Fe2+, Co2+, Ni2+, Cu2+, Zn2+ and Cd2+
containing the dithionate ion were synthesized and characterized through metathesis reactions
in aqueous solution between ...
Physico-chemical characterization and biocompatibility of hydroxyapatite derived from fish waste
(Elsevier Science Bv, 2018)
The aim of this study was to synthesize hydroxyapatite (HAP) powder from fish waste. The powder was characterized through X-ray diffraction, Fourier transform infrared spectroscopy, ion exchange chromatography, scanning ...