86,655 research outputs found
Marriage record of Yancey, Benjamin G. and Blackwelder, Martha M.
No full textMarriage license for Benjamin G. Yancey and Martha M. Blackwelder. Smith Hardin was the officiant
Synthesis and coordination chemistry of hybrid polydentate and halide-substituted stibines and bismuthines
No full textHalostibines and halobismuthines EMenX3-n (E = Sb, Bi; X = Cl, Br; n = 1, 2) display both Lewis acidic and Lewis basic characteristics. A series of adducts with neutral N- and O-donor ligands, [EMeX2(L)] (L = 2,2’-bipyridine, 1,10-phenanthroline, tetramethylethylenediamine) and [SbMeX2(L)2] (L = Ph3PO, Me3PO) were isolated and characterised by X-ray crystallography, 1H (and where appropriate 31P{1H}) NMR spectroscopy and microanalysis. Each complex is monomeric, displaying a distorted square pyramidal geometry around E, with two basal cis halides and the Me group apical. Combination of EMe2X with neutral ligands results in rearrangement at E to yield [EMeX2(L)] or [SbMeX2(L)2] once again as the isolable products. Reaction of SbMenBr3-n (n = 1, 2) with transition metal acceptors gives complexes in which the halostibines behave as Lewis bases. Examination of trends in the crystallographic and spectroscopic data of [M(CO)5(SbMenBr3-n)] (M = Cr, W; n = 1-3) from this work and the literature concluded that the halostibines have a significant ?-acceptor ability, which increases with increased halide substitution. Other transition metal complexes with L = SbMe2Br, [CpFe(CO)2(L)][BF4], [CpFe(CO)(L)2]Br (Cp = cyclopentadienyl) and [Mn(CO)6-n(L)n][CF3SO3] (n = 1, 3) were isolated and contain hypervalent, Sb···O, Sb···F or Sb···Br contacts between ions. Reaction of BiMe2Br with transition metal acceptors results in rearrangement at Bi; the only bismuthine complexes isolated contained the BiMe3 ligand.The hybrid distibine S(CH2-2-C6H4SbMe2)2 and its methiodide [S(CH2-2-C6H4SbMe3)2][I]2 were synthesised and the X-ray structure of the latter determined. Systematic investigations into transition metal complexes of this and other hybrid distibine ligands were undertaken. These ligands coordinate in a bidentate bridging mode in the 1:2 complexes [{CpFe(CO)2}2(L)][BF4] (L = O{(CH2)2SbR2}2 (R = Me, Ph), MeN(CH2-2-C6H4SbMe2)2, S(CH2-2-C6H4SbMe2)2) and [{M(CO)5}2(L)] (M = Cr, W; L = O{(CH2)2SbR2}2 (R = Me, Ph)), a bidentate chelating mode in [M(CO)4(L)] (M = Cr, W; L = O{(CH2)2SbMe2}2, MeN(CH2-2-C6H4SbMe2)2) or a tridentate mode in [M(CO)3(S(CH2-2-C6H4SbMe2)2)] (M = Cr, Mo) and [Mn(CO)3(L)] [CF3SO3] (L = MeN(CH2-2-C6H4SbMe2)2, S(CH2-2-C6H4SbMe2)2). In the latter examples the central hetero-atom of the ligand is coordinated to the transition metal centre. In those cases where it is not, hypervalent interactions between this hetero-atom and one or both coordinated Sb atoms are sometimes, but not always, observed. Comparisons have been drawn with the chemistry of the corresponding hybrid dibismuthine ligands. The hybrid tristibine ligand N(CH2-2-C6H4SbMe2)3 was synthesised and preliminary investigations of its coordination chemistry carried out. It acts as a tridentate ligand via the three Sb donors in [Mn(CO)3(L)][CF3SO3] and [Cu4Br4(L)2], with the ligand fixed in a propeller-like conformation. In the latter, a Cu2Br4 core with a short Cu···Cu distance is observed. [Cu(L)] [BF4] was isolated, in which tetradentate coordination of the ligand has been proposed.Transition metal complexes were characterised by 1H and 13C{1H} NMR spectroscopy and microanalysis, and where appropriate infrared and 55Mn or 63Cu NMR spectroscopies and mass spectrometry. The majority of these complexes have also been structurally characterised by single crystal X-ray diffraction
The marriage record of McCall, Benjamin G. and Humphries, Lula M
No full textMarriage license for Benjamin G. McCall and Lula M. Humphries. J.T. Humphries was the officiant
Bibliography of Education, par G. Stanley Hall et John M. Mansfield, Heath et Cie, Boston, 1886
No full textBuisson Benjamin. Bibliography of Education, par G. Stanley Hall et John M. Mansfield, Heath et Cie, Boston, 1886. In: La revue pédagogique, tome 10, Janvier-Juin 1887. pp. 272-273
Malzberg Benjamin — Mental Disease Among Jews in New-York State
No full textG. J.-M. Malzberg Benjamin — Mental Disease Among Jews in New-York State. In: Population, 17ᵉ année, n°1, 1962. pp. 175-176
Malzberg Benjamin — Mental Disease Among Jews in New-York State
No full textG. J.-M. Malzberg Benjamin — Mental Disease Among Jews in New-York State. In: Population, 17ᵉ année, n°1, 1962. pp. 175-176
Benjamin: suas concepções e propostas em seu ensaio "a tarefa do tradutor"
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Estudos da Tradução, Florianópolis, 2015.Neste trabalho pretende-se analisar o ensaio de Walter Benjamin ?A tarefa do tradutor? levando em conta suas influências, concepções e alguns de seus precursores filosóficos e assim chegar a uma interpretação a partir de suas propostas do que é traduzir para Benjamin.Abstract : This paper aims to examine Walter Benjamin's essay "The Task of the Translator" taking into account their influences, ideas and some of its philosophical precursors and thus arrive at an interpretation from their proposals than it is to translate Benjamin
Stability of oscillatory gravity wave trains with energy dissipation and Benjamin-Feir instability
No full textThe Benjamin-Feir instability describes the instability of a uniform oscillatory wave train in an irrotational flow subject to small perturbation of wave number, amplitude and frequency. Their instability analysis is based on the perturbation around the second order Stokes wave which satisfies the dynamic and kinematic free-surface boundary conditions up to the second order. In the same irrotational flow and perturbation framework of the Benjamin-Feir analysis, the perturbation in the present paper is around a nonlinear oscillatorywave train which solves exactly the dynamic free-surface boundary conditionand satisfies the kinematic free-surface boundary condition up to the third or-der. It is shown that the nonlinear oscillatory wave train is stable with respectto the perturbation when the irrotational flow involves small Rayleigh energydissipation
Die Unabgeschlossenheit des Vergangenen : Erinnerung, Wiederholung und Neubeginn bei Walter Benjamin und Jacques Derrida
No full textWahre Erinnerung erinnert nach Benjamin nicht nur vergangene Fakten, sondern auch das Nichtrealisierte und Unterdrückte; Leidenserinnerung gilt einem Vergangenen, das nicht abgeschlossen ist, sondern eine Zukunft hat. Ähnlich meint Dekonstruktion eine Lektüre, die das Überlieferte aufbricht, um im Gesagten das Nichtgesagte zu entziffern und das Ausgeschlossene zur Sprache zu bringen. True memory, according to Benjamin, does not only remember past facts, but also that which remains unrealized and suppressed. The memory of suffering then, is devoted to a past that is not completed, but has a future. Similarly, deconstruction means a reading which breaks open the tradition to decipher the unsaid in the said and bring the excluded to speech
- …
