Listar Química por autor "Arias Álvarez, Carlos"
Mostrando ítems 1-3 de 3
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Composition, Chemical Fingerprinting and Antimicrobial Assessment of Costa Rican Cultivated Guavas (Psidium friedrichsthalianum (O. Berg) Nied. and Psidium guajava L.) Essential Oils from Leaves and Fruits
Granados Chinchilla, Fabio; Villegas Castro, Erick; Molina Alvarado, Andrea; Arias Álvarez, Carlos (2016-07-28)The essential oil of two related tree species, P. friedrichsthalianum and P. guajava, where obtained. A total of six different oil samples were recovered including leaves in dry/rainy season and fruits of both plant species. ... -
Grids II: Aromatic Acidity and Basicity
Lamoureux Lamontagne, Guy; Arias Álvarez, Carlos (2021)The effect of substituents on the acidity of benzoic acids and basicity of anilines has been organized in grids to demonstrate the inductive and resonance effects. The relation between structure and pKa is emphasized ... -
Grids III: Hydrogen Bridges in Introductory Chemistry
Lamoureux Lamontagne, Guy; Chaves Carballo, Katherine; Arias Álvarez, Carlos (2021)Based on IUPAC recommendations for the definition of the hydrogen bond, a series of grids is presented to provide instructors of introductory chemistry courses with visual examples of H-bridged systems. The grids ...