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Structural studies in lead germanate glasses: EXAFS and vibrational spectroscopy
(1993-12-01)
The Raman, IR absorption and EXAFS spectra at the Ge K-edge and Pb LIII-edge of eight lead germanate glasses, with general formula xPbO(1-x)GeO2 with x = 0.20, 0.25, 0.33, 0.40, 0.50, 0.53, 0.56 and 0.60, have been measured. ...
Structural studies in lead germanate glasses: EXAFS and vibrational spectroscopy
(1993-12-01)
The Raman, IR absorption and EXAFS spectra at the Ge K-edge and Pb LIII-edge of eight lead germanate glasses, with general formula xPbO(1-x)GeO2 with x = 0.20, 0.25, 0.33, 0.40, 0.50, 0.53, 0.56 and 0.60, have been measured. ...
Catalytic oxidation of hydrocarbons by trinuclear mu-oxo-bridged ruthenium-acetate clusters: Radical versus non-radical mechanisms
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2008)
The [Ru(3)O(H(3)CCO(2))(6)(py)(2)(L)]PF(6) clusters, where L=methanol or dimethyl sulfoxide, can be activated by peroxide or oxygen donor species, such as tert-butyl hydroperoxide (TBHP) or iodosylbenzene (PhIO), respectively, ...
Synthesis and GABAA receptor activity of oxygen-bridged neurosteroid analogs
(Elsevier, 2008-01)
Three analogs of neuroactive steroids were prepared (4–6) in which 1,11- or 11,19-oxygen bridges give a constrained conformation. Their 3D structures were obtained by ab initio calculations and in the case of 3α-hydroxy- ...
Bridging oxygens, the key to the electrical behaviour improvement of an ionic liquid - glass composite
(Elsevier Science, 2021-10-20)
The interactions between the [BMIM][PF6] -ionic liquid- and a phosphate glassy surface is studied through calorimetric, structural and impedance spectroscopy methods. A soft solid conductor material is obtained mixing the ...
Characterization and oxygen binding properties of des-Arg human hemoglobin
(Associação Brasileira de Divulgação Científica (ABRADIC), 2009-06-01)
The role of chloride in the stabilization of the deoxy conformation of hemoglobin (Hb), the low oxygen affinity state, has been studied in order to identify the nature of this binding. Previous studies have shown that ...
Characterization and oxygen binding properties of des-Arg human hemoglobin
(Associação Brasileira de Divulgação Científica (ABRADIC), 2009-06-01)
The role of chloride in the stabilization of the deoxy conformation of hemoglobin (Hb), the low oxygen affinity state, has been studied in order to identify the nature of this binding. Previous studies have shown that ...
Dinuclear cobalt(III) and mixed valence trinuclear Mn-III-Mn-II-Mn-III complexes with a tripodal bridging pyridylaminophenol ligand
(Royal Society of Chemistry, 2016)
A dinuclear cobalt(II), [Co2(kappa(4)-O,O', N,N'-L)(2)(mu-O,O'-HCOO)](ClO4)center dot(C2H5)(2)O (1) and a linear mixed valence trinuclear manganese, [Mn-3(kappa(4)-O,O', N,N'-L)(2)(mu-CH3O)(2)(mu-O,O'-CH3COO)(2)]center dot ...
Extracorporeal membrane oxygenation as a bridge to pulmonary transplantation in Brazil: are we ready to embark upon this new age?
(Faculdade de Medicina / USP, 2011)