Vol. 119 No. 1 (2023): Anales de Química de la RSEQ
Emerging organic pollutants (EOCs) are a class of pollutants generated by human activity (e.g., agrochemicals, pharmaceuticals, and personal care products). EOCs are released directly into the environment after passing through wastewater treatment plants (not equipped to remove them), posing a serious risk to health and environment. Recently, metal-organic frameworks or MOFs have been proposed as materials for the removal of EOCs. This review describes the different strategies based on MOFs for the efficient removal of these pollutants in water (adsorption and/or (photo)catalysis) and cites some of the most prominent works.
Keywords: Metal-organic frameworks, water decontamination, emerging organic contaminantsWe´ll show in this tutorial, using propargyl vinyl ethers as examples of multifunctional synthetic blocks, how the reactivity arising from the combination of the molecular multi-functional array can be instrumentalized for the design and development of branched domino (cascade) processes focused to diversity-oriented molecular complexity generation.
Elmer Imes (1883-1941) measured for the first time the infrared spectrum of hydrogen chloride. His results put an end to the debate on the quantization of molecular motions. However, despite the recognition he achieved for it, his scientific career was altered by the barriers faced by African-American citizens in the Jim Crow-era United States. This article explores Imes’ biography and the influence of his work, showing how both reflect the lives of those who suffered from segregation and racism on a daily basis.
Keywords: Elmer Samuel Imes, Infrared Espectroscopy, Hydrogen Halides, History of Science, Biography, Racial SegregationRelevant chemical aspects of the Mexica-Hispanic time (1519-1535), of the viceroyalty (1535-1821), and of early Mexico (1821-1850) are discussed. Chemical flourished simultaneously in the interrelated institutions Royal Botanical Garden and Royal Mining Seminary, founded in the viceregal capital in 1788 and 1792, respectively; Alexander von Humboldt spread this flourishing. In early Mexico, the story of discovery of erythronium (vanadium, V) by the Hispanic Mexican Andrés Manuel del Río y Fernández continued, iron foundries were built and there was a chair of Chemistry at the School of Medicine (1845) in Medicine-Surgery and Pharmacy degrees.
Keywords: Mexica and Hispanic metals, Hispanic black powder, Chemistry in New Spain Institutions, Chemistry in early MexicoThe aim of this study is to perform a historical reconstruction of the Thomson, Lewis- Langmuir and Bohr models from the perspective of their attempt to explain the periodic system based on the electronic configurations of chemical elements. This study has made it possible to broaden the traditional presentation of these three models, which has allowed to understand how some key concepts of the electronic structure of the different atoms began to be constructed as the first proposals for the theoretical
justification of their periodic properties.
There are many biographies about the Dr. Antonio Casares, referrer of the spanish medical hydrology. None mentioned their relationship with Gran Canaria. Nevertheless a chemical study was required by the Real Sociedad Económica de Amigos de el País de Las Palmas de Gran Canaria (RSEAPLPGC) in 1868 to Dr. Casares. This chemist is considered the first researcher who performed a quantitative chemical analysis of the mineral waters of Azuage. The (RSEAPLPGC) promoted the construction of the most important health resort in the Canary Islands between the second half of the 19 th century and the second half of the 20 th century.
Keywords: Antonio Casares Rodríguez, Water Analysis of Azuage, Medical Hydorology, Gran Canaria