Hydrogen bonds between pyrazine and HX linear acids (X = F, NC, CN and CCH): a theoretical study
摘要：
Theoretical studies using the B3LYP and MP2 levels of calculation, with the 6-31++G** basis set, hav...
doi：
10.1590/S0103-50532005000500025
作 者：
Silva, João Bosco P....
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Journal of the Brazilian Chemical Society
Additional flavonoids from Lonchocarpus yucatanensis and L. xuul
摘要：
Two new natural flavanones, 5-hydroxy-6,7-(2",2"-dimethylchromene)flavanone (1) and 5-methoxy-3-hydr...
doi：
10.1590/S0103-50532005000600028
作 者：
Borges-Argáez, Rocío...
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期刊标题：
Journal of the Brazilian Chemical Society
Evaluation of a continuum source tungsten coil atomic absorption spectrometer: a study of Zn behavior
摘要：
The performance of a tungsten coil atomizer atomic absorption spectrometer with a D2 lamp continuum ...
doi：
10.1590/S0103-50532005000400023
作 者：
Jones, Bradley T.;Ca...
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期刊标题：
Journal of the Brazilian Chemical Society
Adsorption kinetics and dilatational rheological studies for the soluble and anchored forms of alkaline phosphatase at the air/water interface
摘要：
This work presents equilibrium and dynamic aspects for the adsorption at the air/liquid interface of...
doi：
10.1590/S0103-50532005000600013
作 者：
Zaniquelli, Maria El...
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期刊编号：
期刊标题：
Journal of the Brazilian Chemical Society
Bi(OTf)3 or Bi(TFA)3 catalyzed efficient, regio- and chemoselectively synthesis of beta-hydroxy thioethers from aryl disulfides in the presence of zinc powder
摘要：
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doi：
10.1590/S0103-50532005000400034
作 者：
Ghozati, Kazem;Khoda...
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期刊标题：
Journal of the Brazilian Chemical Society
Electrochemical and spectroscopic study of 4-(Phenyldiazenyl)-2-{[tris-(hydroxymethyl)methyl] aminomethylene}cyclohexa-3,5-dien-1(2H)-one: mechanism of the azo and imine electroreduction
摘要：
Newly synthesized 4-(phenyldiazenyl)-2-{[tris(hydroxymethyl)methyl]aminomethylene} cyclohexa-3,5-die...
doi：
10.1590/S0103-50532005000500005
作 者：
Albayrak, Çigdem;Biç...
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期刊标题：
Journal of the Brazilian Chemical Society
Secondary organic compounds in atmospheric aerosols: speciation and formation mechanisms
摘要：
Taking into account their atmospheric characteristics, generally under photochemical conditions, for...
doi：
10.1590/S0103-50532005000600020
作 者：
Instituto Politécnic...
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期刊标题：
Journal of the Brazilian Chemical Society
Thallium trinitrate-mediated ring contraction of 1,2-dihydronaphthalenes: the effect of electron-donating and electron-withdrawing groups
摘要：
The oxidation of a series of 1,2-dihydronaphthalenes substituted in the aromatic ring was investigat...
doi：
10.1590/S0103-50532005000700012
作 者：
Silva Jr., Luiz F.;A...
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期刊标题：
Journal of the Brazilian Chemical Society
Structural impact of hydroxyvalerate in polyhydroxyalkanoates (PHAscl) dense film monitored by XPS and photothermal methods
摘要：
Poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) polymer dense films with th...
doi：
10.1590/S0103-50532005000500017
作 者：
Pontifícia Universid...
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期刊标题：
Journal of the Brazilian Chemical Society
A new neolignan and antioxidant phenols from Nectandra grandiflora
摘要：
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doi：
10.1590/S0103-50532005000400005
作 者：
Universidade Estadua...
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期刊编号：
期刊标题：
Journal of the Brazilian Chemical Society
