Search Results - "Carlos A. L. Filgueiras"
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Molecular and supramolecular properties of a Hg(II) complex with (E)-N,N′-bis(2-pyridyl)iminoisoindoline: synthesis, spectroscopy, X-ray structure and Hirshfeld surface analyses, and DFT calculations
Published in Journal of coordination chemistry (19-03-2017)“…A scarcity of metal complexes containing (E)-N,N′-bis(heteroaryl)iminoisoindolines has prompted us to investigate the coordinating ability and supramolecular…”
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A QUÍMICA E A SÍFILIS: UM PERCURSO HISTÓRICO
Published in Química Nova (2024)“…CHEMISTRY AND SYPHILIS: A HISTORICAL JOURNEY. The relationship between syphilis and chemistry is remarkable due to its being the first example in western…”
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Supramolecular Cd(II) complexes with (E)-N,N′-bis(2-pyridyl)iminoisoindoline (2-pyimiso): synthesis, X-ray structures, Hirshfeld surface analyses, and DFT study of [CdX2(2-pyimiso)2] (X = Cl or NCS)
Published in Journal of coordination chemistry (01-11-2016)“…The paucity of coordination entities bearing (E)-N,N′-bis(heteroaryl)iminoisoindolines has prompted us to investigate coordination modes and supramolecular…”
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PEDRO DE ALCANTARA LISBOA, QUÍMICO BRASILEIRO DO SÉCULO XIX
Published in Química Nova (01-09-2022)“…The subject of the present article is a Brazilian chemist who lived and worked in the nineteenth century and who is hardly known today. He was the first person…”
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ALFRED SCHAEFFER E SUAS CONTRIBUIÇÕES PARA A QUÍMICA
Published in Química Nova (01-01-2025)“…ALFRED SCHAEFFER AND HIS CONTRIBUTIONS TO CHEMISTRY. Alfred Schaeffer (1879-1957) was a German chemist who arrived in Minas Gerais in 1911 hired by the state…”
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O VIDRO E SUA IMPORTÂNCIA NA VIDA E NA QUÍMICA
Published in Química Nova (2023)“…GLASS AND ITS IMPORTANCE IN LIFE AND IN CHEMISTRY. Glass is one of the most important materials both in ordinary life, in which its presence is felt…”
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A CONTRIBUIÇÃO DO BRASIL PARA A DESCOBERTA DE UM NOVO ELEMENTO QUÍMICO – O PALÁDIO
Published in Química Nova (01-05-2019)“…In the year 2019 the periodic table of the elements will celebrate 150 years. A frequent misunderstanding says that palladium might have been initially…”
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O Visconde de Barbacena e o químico José Álvares Maciel: encontro na ciência e desencontro na política
Published in Química Nova (14-02-2017)“…These two men were former natural philosophy students from the University of Coimbra. Barbacena finished in 1775 and obtained a doctorate in 1776, whereas…”
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ETHYLENE POLYMERIZATION WITH NICKEL DIIMINE COMPLEXES CONTAINING PSEUDOHALIDES
Published in Química Nova (01-07-2018)“…Nickel-diimine complexes DADNiX2 (DAD= 2,6-iPr2-C6H3-N=C(Me)-C(Me)=N-2,6-iPr2-C6H3) containing the non-chelating pseudo-halide ligands isothyocyanate and…”
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O centenário da Teoria de Bohr
Published in Química Nova (2013)“…The year 2013 marks the centennial of that wondrous year in which Niels Bohr proposed a novel theory about the constitution of atoms and small molecules after…”
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O centenário da molécula de Bohr
Published in Química Nova (2013)“…A hundred years ago, a twenty-eight year old Danish scientist published a series of three papers in which electron motion was quantized. The Bohr atomic model…”
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O primeiro curso regular de química no Brasil
Published in Química Nova (2011)“…Chemistry gradually became a discipline in a number of institutions in Brazil after the arrival of the Portuguese court in 1808. The first of these was the…”
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A química atmosférica no Brasil de 1790 a 1853
Published in Química nova (2010)“…Atmospheric chemistry in Brazil from 1790 to 1853. Scarcely any mention is made today of investigations carried out in Brazil during the period above on the…”
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Cyclization of N-alkyldithiocarbamates in alkaline media, a counter example of well-known chemistry - an experimental and theoretical study
Published in Journal of coordination chemistry (20-02-2012)“…In strong alkaline media, the reaction of 2-(tert-butylamino)ethanol (3: R = Bu t ) with CS 2 at 0°C produced a cyclic dithiocarbamate,…”
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Essays on the History and Philosophy of Chemistry: Ensaios de História e Filosofia da Química
Published in Transversal (Belo Horizonte) (19-06-2022)“…Book Review Zaterka, Luciana and Mocellin, Ronei Clécio. Ensaios de História e Filosofia da Química (Essays on the History and Philosophy of Chemistry). São…”
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Gilbert Lewis e o centenário da Teoria da Ligação por Par de Elétrons
Published in Química nova (29-09-2016)Get full text
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A química do estanho no século 18, ou como uma consulta se transformou num projeto de pesquisa
Published in Química Nova (01-12-2002)Get full text
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A história da ciência e o objeto de seu estudo: confrontos entre a ciência periférica, a ciência central e a ciência marginal
Published in Química Nova (01-10-2001)Get full text
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Evaluation of PM3 calculations applied to organotin compounds: crystal structure of [Ph2SnCl2 (1,10-phenanthroline-5,6-dione)]·2Me2CO
Published in Applied organometallic chemistry (01-04-2005)“…PM3 calculated geometries of a set of mainly organotin compounds covering different coordination numbers at tin were compared with published experimental…”
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Ethylene polymerization with imine and phosphine nickel complexes containing isothiocyanate
Published in Applied organometallic chemistry (01-07-2004)“…Three isothiocyanate complexes of nickel(II) containing diimine [ArNC(Me)C(Me)NAr]Ni‐ (NCS)2 (1), iminophosphine [Ph2PC6H4CHNAr]Ni(NCS)2 (2), or…”
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