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Autores: A partir do fascículo 39/9 a revista Química Nova adotou a licença CC-BY. Mais informações a respeito dessa licença podem ser obtidas aqui.

Edição Atual vol. 40, No. 10, 2017, p. 1137-1263

 

Submission procedures for OPEN ACCESS

The Board of Directors of the Sociedade Brasileira de Química-SBQ (publisher of the Química Nova-QN) decided that QN will adopt the full open access format in which authors are required to cover part of the publication costs for their articles. See more...



Artigo de Capa
Quim. Nova 2017, 40(10), 1158-1163

CONSTITUINTES QUÍMICOS E ATIVIDADE INSETICIDA DE Miconia ferruginata

Gracielle Oliveira Sabbag Cunha; Andreia Pereira Matos; Antonio Rogerio Bernardo; Antonio Carlos Severo Menezes; Marcela Carmen de Melo Burger; Paulo Cezar Vieira; Moacir Rossi Forim; Joao Batista Fernandes; Maria Fatima das Graças Fernandes da Silva

Flavonoids, triterpenes and steroids were isolated from Miconia ferruginata. The leaf extracts showed insecticidal effects.

http://dx.doi.org/10.21577/0100-4042.20170126

Publicado online: outubro 2, 2017
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Artigos Quim. Nova 2017, 40(10), 1137-1140

 

THEORETICAL RESEARCH ON THE MULTI-CHANNEL REACTION MECHANISM AND KINETICS OF HNCS WITH OH-

Li-Jie Hou; Bo-Wan Wu; Yan-Xia Han; Chao Kong; Li-Guo Gao


The channel of H-atom in HNCS direct extraction to OH- (OH-+HNCS→IM1→TS3→ IM3→SCN- +H2O) in singlet state was the main channel.

http://dx.doi.org/10.21577/0100-4042.20170106

Publicado online: agosto 15, 2017
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Quim. Nova 2017, 40(10), 1141-1148

 

HIGH PRESSURE BEHAVIOR OF CRYSTALLINE DIHYDROXYLAMMONIUM 5,5'-BISTETRAZOLE-1,1'‑DIOLATE: FIRST-PRINCIPLES STUDY

Guozheng Zhao; Xilin Yan


First of all, TKX-50 is rearranged in the crystal and the improvement of the molecular planarity occurs. Next, structural transformation appears with the distortion of the tetrazole rings. Finally, the rotation of molecular conformation occurs.

http://dx.doi.org/10.21577/0100-4042.20170124

Publicado online: setembro 25, 2017
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Quim. Nova 2017, 40(10), 1149-1157

 

ESTUDO CINÉTICO DE DECOMPOSIÇÃO TÉRMICA DE ESPUMAS RÍGIDAS DE POLIURETANO POR REDE NEURAL ARTIFICIAL

Bárbara D. L. Ferreira; Virgínia R. Silva; Bruna Berger Jacobsem; Maria Irene Yoshida; Rita C. O. Sebastiao


Thermal analysis data of two Rigid Polyurethane Foam samples: loaded with (Al2O3) and no inorganic filler are modeled by neural network supporting physical correlation.

http://dx.doi.org/10.21577/0100-4042.20170128

Publicado online: outubro 16, 2017
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Quim. Nova 2017, 40(10), 1164-1171

 

ESTUDO ATRAVÉS DE RMN DE 13C NO ESTADO SÓLIDO SOBRE A SÍNTESE DE OXIDO DE GRAFITE UTILIZANDO DIFERENTES PRECURSORES GRAFÍTICOS

Mariana A. Vieira; Carolina Maria R. Frasson; Tainara Luiza G. Costa; Daniel F. Cipriano; Miguel A. Schettino Jr.; Alfredo G. Cunha; Jair C. C. Freitas


Graphite precursors with distinct particle sizes (as seen in SEM imagens) led to the production of graphite oxides with distinct degrees of oxidation (as seen in 13C NMR spectra).

http://dx.doi.org/10.21577/0100-4042.20170129

Publicado online: outubro 16, 2017
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Quim. Nova 2017, 40(10), 1172-1179

 

SUPPORT EFFECT ON THE STRUCTURE AND PROPERTIES OF MANGANESE OXIDE ELECTRODE MATERIALS

Huatao Wu; Yongjun Han; Li Wang; Lihui Zhang; Xiang Wang


The composite electrode material of manganese oxide supported on poly glucose (PGS) was prepared by using KMnO4 as manganese source. The composition of the composite electrode materials relies on the weight ratio of KMnO4/PGS.

http://dx.doi.org/10.21577/0100-4042.20170130

Publicado online: outubro 16, 2017
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Quim. Nova 2017, 40(10), 1180-1185

 

DETERMINAÇÃO RÁPIDA E SIMULTÂNEA DE PROPIFENAZONA, PARACETAMOL E CAFEÍNA UTILIZANDO ANÁLISE POR INJEÇÃO EM BATELADA COM DETECÇÃO AMPEROMÉTRICA

Weberson Pereira Silva; Luiz André Juvêncio Silva; Rodrigo Alejandro Abarza Muñoz; Eduardo Mathias Richter


Use of batch injection analysis with multiple pulse amperometric detection (BIA-MPA) for simultaneous determination of propyphenazone (PRO), paracetamol (PAR), and caffeine (CAF).

http://dx.doi.org/10.21577/0100-4042.20170131

Publicado online: outubro 16, 2017
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Quim. Nova 2017, 40(10), 1186-1190

 

NEW SEMISYNTHETIC DERIVATIVES OF A BENZYLISOTHIOCYANATE ISOLATED FROM Moringa oleifera AND EVALUATION OF THEIR CYTOTOXIC ACTIVITY

Diana Kelly C. de Almeida; Marcos R. da Silva; Maria C. F. de Oliveira; Jair Mafezoli; Marcos C. de Mattos; Andréa F. Moura; Manoel O. Moraes Filho; Francisco G. Barbosa


Semisynthetic derivatives of a benzylisothiocyanate isolated from Moringa oleifera were produced and evaluated for cytotoxic activity.

http://dx.doi.org/10.21577/0100-4042.20170132

Publicado online: outubro 16, 2017
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Revisão Quim. Nova 2017, 40(10), 1191-1203

 

ESPECIAÇÃO TERMODINÂMICA DE METAIS TRAÇO COM SUBSTÂNCIAS HÚMICAS: O MODELO NICADONNAN

José Paulo Pinheiro; Adnívia Santos Costa Monteiro; Noemie Janot; Bert Jan Groenenberg; André Henrique Rosa


The figure shows an example of a potentiometric titratíon of humic matter at different íonic strenghts with master curve and NICA-Donnan modelling. Inset: solutions of aquatic fulvic acid, aquatic humic acid and peat humic acid after titration.

http://dx.doi.org/10.21577/0100-4042.20170107

Publicado online: agosto 15, 2017
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Quim. Nova 2017, 40(10), 1204-1214

 

COMPOSTOS ORGÂNICOS E INORGÂNICOS CONTENDO SELÊNIO: REVISÃO DE MÉTODOS ANALÍTICOS E PERSPECTIVAS PARA ANÁLISES QUÍMICAS

Fernanda C. O. L Martins; Diego L. Franco; Rodrigo A. A. Muñoz; Djenaine De Souza


Spectrometric, chromatographic and electroanalytical methods in the quantification of organic and inorganic compounds containing Se in food, biological and natural water samples.

http://dx.doi.org/10.21577/0100-4042.20170151

Publicado online: novembro 13, 2017
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Quim. Nova 2017, 40(10), 1215-1227

 

PONTOS QUÂNTICOS AMBIENTALMENTE AMIGÁVEIS: DESTAQUE PARA O ÓXIDO DE ZINCO

Crislaine Sandri; Maria Victória Krieger; Wallison Chaves Costa; Arleide Rosa da Silva; Ivan Helmuth Bechtold; Lizandra Maria Zimmermann


This picture shows the fluorescence emission of the environmentally friendly zinc oxide quantum dots, being related to its size and some of its main applications.

http://dx.doi.org/10.21577/0100-4042.20170114

Publicado online: agosto 29, 2017
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Nota Técnica Quim. Nova 2017, 40(10), 1228-1232

 

UTILIZAÇÃO DO ESPECTRÔMETRO DE ABSORÇÃO ATÔMICA PARA DETERMINAÇÃO DE CLORIDRATO DE METFORMINA E CLORIDRATO DE RANITIDINA EM MEDICAMENTOS

Mariana Barbosa André de Souza; Klaiani Bez Fontana; Caroline Gonçalves; Eduardo Sidinei Chaves


Atomic absorption spectrometer for metformin and ranitidine hydrochlorides determinations in medicines via molecular absorption.

http://dx.doi.org/10.21577/0100-4042.20170121

Publicado online: setembro 12, 2017
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Quim. Nova 2017, 40(10), 1233-1237

 

DESENVOLVIMENTO DE AMOSTRADOR PASSIVO SENSÍVEL PARA MONITORAMENTO DE POLUIÇÃO ATMOSFÉRICA POR DIÓXIDO DE NITROGÊNIO

Pedro A. F. Souza; Karen C. A. Francisco; Arnaldo A. Cardoso


A new passive sampler for measurement of ambient NO2 was developed (A) using parts of 50 mL conical centrifuge tubes (B), Teflon tape (C) and black insulant tape (D).

http://dx.doi.org/10.21577/0100-4042.20170117

Publicado online: setembro 12, 2017
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Quim. Nova 2017, 40(10), 1238-1243

 

HPLC-DAD DETERMINATION OF BERBERINE, CHELERYTHRINE AND SANGUINARINE IN THE MEXICAN PRICKLY POPPY (Argemone mexicana L. PAPAVERACEAE), A MEDICINAL PLANT

Jorge F. Xool-Tamayo; Manlio Graniel-Sabido; Gumersindo Mirón-López; Gonzalo J. Mena-Rejón; Miriam Monforte-González; Felipe Vázquez Flota


The three main alkaloids of Argemone mexicana plants were separated in a single chromatographic run using an incremental gradient of acetonitrile in 1% acetic acid in water.

http://dx.doi.org/10.21577/0100-4042.20170111

Publicado online: agosto 22, 2017
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Educação Quim. Nova 2017, 40(10), 1244-1252

 

AVALIAÇÃO DE COMPETÊNCIAS DESENVOLVIDAS NA DISCIPLINA DE QUÍMICA MEDICINAL DA PÓS-GRADUÇÃO STRICTU SENSU: UMA EXPERIÊNCIA DE SALA DE AULA

Davidson Passos Mendes; Carla Junia Santos; César Augusto Ribeiro; Fabiana Costa Guedes; Wanderlin Fernandes Duarte; Daniel Crístian Ferreira Soares


The competencies developed in Medicinal Chemistry can be considered as an engine, where the gears are related to professional, scientific and docent development.

http://dx.doi.org/10.21577/0100-4042.20170099

Publicado online: julho 19, 2017
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Quim. Nova 2017, 40(10), 1253-1258

 

ALÉM DA CAIPIRINHA: CACHAÇA COMO SOLVENTE PARA SÍNTESE ORGÂNICA E EXTRAÇÃO DE PIGMENTO

Silvio Cunha; Jamille Silveira Matos


Cachaça was applied for the first time as solvent in undergraduate experiments of benzalacetophenone and dibenzalacetone syntheses, and natural pigment of urucum (Bixa orellana L.) was obtained using as extractor solvent a 5% NaOH solution in cachaça.

http://dx.doi.org/10.21577/0100-4042.20170110

Publicado online: agosto 22, 2017
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Quim. Nova 2017, 40(10), 1259-1263

 

O MÉTODO DE HYLLERAAS PARA ÁTOMOS DE DOIS ELÉTRONS

Felipe S. Carvalho; João P. Braga


A table with the calculated electronic energies and the surfaces for some Hylleraas basis functions.

http://dx.doi.org/10.21577/0100-4042.20170125

Publicado online: outubro 2, 2017
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