Electrochemistry of Ru(edta) complexes relevant to small molecule transformations: Catalytic implications and challenges

Electrochemistry of Ru(edta) complexes (edta4 = ethylenediaminetetraacetate) progressed over a period of several decades, with significant increase in understanding of the electro-catalytic processes involving the substrate coordinated to the metal center. While electrochemistry studies of many Ru(edta) complexes were published in several papers, no attempt has been made to provide a comprehensive and systematic overview of its electrochemical properties, evaluating its application to catalytic electrochemical transformation of small molecules. In this article, results of the electrochemical studies of both mononuclear and binuclear complexes of Ru(edta) are reviewed with regard to electron-transfer reaction mechanism and activity. Their potential to act as redox mediators or catalysts in electrochemical transformations of small molecules and enzymatic reactions, are highlighted. This review aims to contribute to the mechanistic understanding of Ru(edta) complexes in catalysis of such electrochemical transformations

Ulisses Aldrovandi, jego kolekcja przyrodnicza oraz związki z polskimi uczonymi. Część 2

The article is a continuation of the subject connected with the work of Ulissess Aldrovandi focusing on Polish scholars’ contribution to enrich his collection. Some specimens and prints he could not find personally, he received thanks to his friendship and correspondence with fellow scientists, former students and travellers interested in his work and in visiting his museum. Thanks to his Polish contacts, Aldrovandi could also extend his collection by specimens from Poland. The Professor of the Kraków Academy, Marcin Fox, who met the naturalist during his studies in Bologna, was particularly instrumental in acquiring exhibits. The exchange of letters and nature exhibits between the scientists continued from 1579 to 1588

Ulisses Aldrovandi, jego kolekcja przyrodnicza oraz związki z polskimi uczonymi. Część 1.

Born in Bologna, educated at Bologna and Padua universities, Ulisse Aldrovandi (1522–1605), is generally known as a naturalist and biologist, the author a great work: Natural History, in which he aimed to contain his entire knowledge of nature. Aldrovandi was a man of very receptive mind, thoroughly educated and thus he was appointed to various offices throughout his life. He was the Head of the Chair of Natural Sciences at the Bologna University. He contributed to the opening of the municipal botanical garden of which he was the director for many years. While holding the office of Protomedicus, he compiled the first Bologna’s pharmacopoeia which is still binding in the city. He spent most of his free time and funds on travelling and collecting materials for his Natural History. His steadily growing collection of books, manuscripts, drawings and natural exhibits was displayed in his own house and was available to visitors. In his last will, Aldrovandi bequeathed his natural collection and library to the Senate of Bologna which transferred the collection to the Municipal Palace. The surviving exhibits and prints are now kept at the Palazzo Poggi and the University Library in Bologna

Luminescent crystals and manufacturing thereof

The present invention relates to the field of luminescent crystals (LCs), and more specifically to Quantum Dots (QDs) of formula A1aM2bXc, wherein the substituents are as defined in the specification. The invention provides methods of manufacturing such luminescent crystals, particularly by dispersing suitable starting materials in the presence of a liquid and by the aid of milling balls; to compositions comprising luminescent crystals and to electronic devices, decorative coatings; and to components comprising luminescent crystals.</p