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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.

vol. 42, No. 2, 2019, p. 129-248

 

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Artigo de Capa
Quim. Nova 2019, 42(2), 135-142

Elucidação da quiralidade induzida na molécula dansilglicina na complexação com a proteína albumina do soro humano (HSA)

Aguinaldo Robinson de SouzaI; Izabelle Amorim Ferreira BozaI,*; Valdecir Farias XimenesI; Maurício Ikeda YoguinI; María-José Dávila-RodriguezIII,IV; Nelson Henrique MorgonII; Ignez CaracelliIII

An induced circular dichroism (ICD) signal is obtained by complexation between human serum albumin (HSA) and dansylglycine (DanG).

http://dx.doi.org/10.21577/0100-4042.20170341

Publicado online: janeiro 16, 2019
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Artigos Quim. Nova 2019, 42(2), 129-134

 

Postsynthesis of titanium incorporated with amino-functionalization UiO-66 for enhancing CO2 uptake

Jinlong Ge*; Zhong Wu; Qiuqin Wang; Shanshan Yang


Titanium cooperated with NH2-UiO-66 has been prepared via post synthesis modifications approach and perform enhanced CO2 uptake application due to their unprecedented capacity to store small molecules.

http://dx.doi.org/10.21577/0100-4042.20170312

Publicado online: novembro 28, 2018
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Quim. Nova 2019, 42(2), 143-148

 

Destilação atmosférica do biodiesel derivado do óleo de macaúba ou do palmiste para obtenção da fração de ésteres leves para uso como combustível de aviação

Luiz Vitor Leonardi HarterI,*; Douglas Queiroz SantosI; José Domingos FabrisII,III


The point to carry out the distillation cut is between fraction 05 and 06, because in fraction 06 the content of C12 decreases and that of C18 increases. Thus, the distillate would be between 50 and 60% of the total biodiesel used in distillation.

http://dx.doi.org/10.21577/0100-4042.20170320

Publicado online: dezembro 20, 2018
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Quim. Nova 2019, 42(2), 149-155

 

Um estudo cinético sobre a influência de mediadores fenólicos na descoloração de diferentes corantes por sistemas fenton

Cássia Sidney SantanaI; Camila Cristina Vieira VellosoI; André AguiarII,*


The presence of the phenolic mediator, 3,4-dihydroxyphenylacetic acid, increased the reaction rate to the phenol red decolorization by a Fenton system.

http://dx.doi.org/10.21577/0100-4042.20170316

Publicado online: dezembro 6, 2018
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Quim. Nova 2019, 42(2), 156-158

 

Isolation of antifungal quinoid derivatives from leaves of Pentacalia desiderabilis (Vell.) Cuatre. (Asteraceae) using ionic liquid in the microwave assisted extraction

Kaio de S. GomesI; Cinthia I. TamayoseII; Marcelo José P. FerreiraII; Cynthia MurakamiIII; Maria Claudia M. YoungIII; Guilherme M. AntarII; Fernanda F. CamiloIV; Patricia SartorelliIV; João Henrique G. LagoI,*


Leaves of Pentacalia desiderabilis (Asteraceae) were extracted using BMImBr and H2O in a MAE system. Partition with CH2Cl2 and fractionation of organic phase afforded four related quinoids (1 - 4). Compounds 1 - 3 displayed activity against Cladosporium sp.

http://dx.doi.org/10.21577/0100-4042.20170319

Publicado online: dezembro 20, 2018
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Quim. Nova 2019, 42(2), 159-172

 

Synthesis, electronic and spectral properties of new 1,3,4-thiadiazole compounds and the spectral analysis of their conformers using density functional theory

Muhammet Serdar ÇavuşI,*; Tuğba ÇelikII


Analysis of the correlation between electronic and spectral data of the conformers of new 1,3,4-thiadiazole compounds.

http://dx.doi.org/10.21577/0100-4042.20170315

Publicado online: novembro 29, 2018
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Quim. Nova 2019, 42(2), 173-180

 

Simulação de combustão do polibutadieno líquido hidroxilado, perclorato de amônio e alumínio em formulações de propelente sólido compósito

Renata F. CardosoI; Luciene D. VillarII; Elizabete Y. KawachiI; Rene F. B. GonçalvesI,*


Influence of the axial velocity on the initial temperature developed during the propellant burning process.

http://dx.doi.org/10.21577/0100-4042.20170342

Publicado online: janeiro 16, 2019
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Quim. Nova 2019, 42(2), 181-191

 

Molecule design and properties of cyclic energetic materials based on nitroguanidine and 1,1-diamino-2,2-dinitroethene

Xiao MenghuiI; Jin XinghuiI,*; Zhou JianhuaI; Hu BingchengII


A series of nitroguanidine and 1,1-diamino-2,2-dinitroethene based cyclic energetic materials were designed and their electronic structures, detonation properties and thermal stabilities were fully investigate by density functional theory (DFT).

http://dx.doi.org/10.21577/0100-4042.20170317

Publicado online: dezembro 17, 2018
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Quim. Nova 2019, 42(2), 192-196

 

Composição química e atividade antileishmania de Tocoyena hispidula

Elcilene A. de SousaI; Amauri Porto A. RosaI; Rodolfo Ritchelle L. dos SantosII; Ingredy L. dos SantosII; Valéria C. de SousaII; Fernando Aécio de A. CarvalhoII; Gerardo M. Vieira JúniorI; Mariana H. ChavesI,*


Phytochemical study of the CHCl3 fraction from EtOH extract of T. hispidula stem led to the isolation of six pure compounds and four mixtures, predominantly triterpenoids and steroids. The CHCl3 and EtOAc fractions were the most active against Leishmania major promastigotes.

http://dx.doi.org/10.21577/0100-4042.20170313

Publicado online: novembro 28, 2018
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Quim. Nova 2019, 42(2), 197-205

 

Comparação entre técnicas de extração de hidrocarbonetos policíclicos aromáticos em tecidos hepático e adiposo de tetrápodes marinhos e avaliação da heterogeneidade dos tecidos

Rafael André Lourenço*; Satie Taniguchi; Josilene da Silva; Patrick Simões Dias; Márcia Caruso Bícego


Comparison between two PAH extraction techniques, soxhlet and microwave irradiation, in biological tissues of marine tetrapods. Validation of analytical methods and procedures.

http://dx.doi.org/10.21577/0100-4042.20170327

Publicado online: janeiro 24, 2019
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Revisão Quim. Nova 2019, 42(2), 206-213

 

Nanotoxicologia de nanopartículas de prata: toxicidade em animais e humanos

Nelson DuránI,*; Wallace R. RolimII; Marcela DuránI; Wagner J. FávaroI; Amedea B. SeabraII


This review presents a critical view of the toxic effects of silver nanoparticles (Ag NPs) on in vitro and in vivo biological models.

http://dx.doi.org/10.21577/0100-4042.20170318

Publicado online: dezembro 17, 2018
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Nota Técnica Quim. Nova 2019, 42(2), 214-220

 

Avaliação de diferentes métodos de extração para a identificação de resíduos de macrolídeos em alimentos infantis industrializados à base de carne por cromatografia a líquido acoplada à espectrometria de massas sequencial (lc-ms/ms)

Jônatas V. Grutes*; Rosana G. Ferreira; Mychelle A. Monteiro; Mararlene U. Pereira; Bernardete F. Spisso


This study compared eight simple methods for identification of macrolides residues in canned baby food and an effective extraction method was achieved, using QuEChERS procedure for sample preparation.

http://dx.doi.org/10.21577/0100-4042.20170306

Publicado online: novembro 7, 2018
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Educação Quim. Nova 2019, 42(2), 221-231

 

Exposição oral no ensino superior de química

Patrícia Fernanda de Oliveira CabralI; Keila Angélica PeronII,#; Salete Linhares QueirozII,*


Using the topic of biodiesel as a platform, we have created a series of activities designed to provide undergraduate chemistry students the opportunity to develop oral communication skills.

http://dx.doi.org/10.21577/0100-4042.20170326

Publicado online: janeiro 23, 2019
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Quim. Nova 2019, 42(2), 232-236

 

La periodicidad de los elementos y el desempeño de los materiales: un complemento para la comprensión de la tabla periódica

Virginia E. Noval; José G. Carriazo*


The United Nations has proclaimed 2019 as the International Year of the Periodic Table of Chemical Elements. For that reason, it is considered pertinent to highlight the importance of the periodic system in the scientific and technological development of the chemistry.

http://dx.doi.org/10.21577/0100-4042.20170340

Publicado online: janeiro 14, 2019
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Assuntos Gerais Quim. Nova 2019, 42(2), 237-248

 

O conceito de valência em livros didáticos de química geral entre as décadas de 1890 e 1940

Helena S. Alvares NogueiraI,*; Paulo Alves PortoII


In the first decades of the 20th century, general chemistry textbooks presented the concept of valence in different ways, from classical approaches to the electronic model. Didactic models might include even an analogy with hooks holding atoms together.

http://dx.doi.org/10.21577/0100-4042.20170310

Publicado online: novembro 28, 2018
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