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PubMed · 11636927

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M H Ferraz
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Abstract

This paper discusses works on chemical analyses of mineral waters in late 18th Century Portugal and the way these results were used by physicians when prescribing treatment with such waters. Furthermore, this research sheds some light on the application in Portugal of theories on composition and transformation of mater.

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Chemistry, AnalyticChemistry, PharmaceuticalHistory, 18th CenturyMineral WatersPortugalTherapeuticsEnglish AbstractHistorical ArticleJournal Article

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M H Ferraz. 1996. [Not Available].. https://pubmed.ncbi.nlm.nih.gov/11636927/

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Carl Friedrich Naumann and the introduction of enantio terminology: a review and analysis on the 150th anniversary.

Enantiomorphism and enantiomorphous were the first enantio-based terms, introduced 150 years ago, by Carl Friedrich Naumann, a German crystallographer, to refer to non-superposable mirror-image crystals. The terminology was not adopted by Pasteur, the discoverer of molecular chirality, and was not embraced at first in the stereochemical context, until it was accepted in 1877 by Van't Hoff in the German edition of his proposal for the tetrahedral asymmetric carbon atom. In the 1890s the use of enantio terms began to spread in the research literature, and many new derivatives of Naumann's original two terms were subsequently introduced. Problems in the usage of some of the terms are often found in the literature, e.g., enantiomorphism is sometimes confused with chirality; enantiomeric is often misused; the meaning of some of the many derived terms, e.g., enantiosymmetric, enantioposition, etc., is unclear. All in all, Naumann should be remembered as the creator of essential terminology in the realm of chirality.

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