A selection of articles related to lewis acid.
Original articles from our library related to the Lewis Acid. See Table of Contents for further available material (downloadable resources) on Lewis Acid.
- There are fragments of the 'Atlantis' legend in almost every culture around the world. This suggests, but does not prove, that the legend is based on a very ancient truth that was known by the forebears of each of these cultures. Our main source of...
Saga of Times Past >> Legend and Prehistory
- Human Evolution
- The first hominids evolved some 3 or 4 million years ago, and so we have only limited means of determining how they evolved. Although human evolution is an important phase of the history of religion, the evolution of humans in itself is more a matter of...
Saga of Times Past >> Archaeology
- Astronomy in Ancient Civilisations
- It is a pity that the myths of ancient civilisations are so easily dismissed as the musings of savage minds, as it is subsequently easy to overlook the fact that many of their myths were encryptions of their astronomical knowledge. The best example of this...
Modern Science >> Astronomy
- The Jesus Double-Act
- Is it possible that there were two Jesus', and that the histories of both have become entwined in the modern Bible? An examination of the evidence suggests that this is not only possible, but highly probable. To begin with, let us look at the Gospels....
Christianity >> The Bible
- Elemental Associations
- The earliest of Greek natural philosophers, Thales, in considering which was the most basic element in the cosmos, from which the cosmos was made, supposed that the cosmos was made of Water. Later, Heraclitus decided that the most basic element in the cosmos...
Magick >> The Elements
- The Magician's Pyramid
- Of the Magician's Pyramid, the tip of the pyramid is the work performed and the power used, and the four corners of the base, the four sources of that power. They are, equally and in no order, Imagination, Will, Faith, and Secrecy. Imagination (Air): You must...
Mystic Sciences >> Magick
- Planes of Existence
- As shown in this diagram, planes of existence should not, as they commonly are, be thought of as discreet states but rather as a continuous scale. As we distinguish between body, mind and soul, we must equally distinguish between physical, mental, and...
Parapsychology >> Astral Projection
Lewis Acid is described in multiple online sources, as addition to our editors' articles, see section below for printable documents, Lewis Acid books and related discussion.
Suggested Pdf Resources
- Lewis Acids/Bases; HSAB Theory
- Lewis acid/base theory (sometimes called donor-acceptor theory) is a broad are the bases, but there are certain "hallmarks" of Lewis acids to be alert for.
- Lewis Acids and Bases Halogens, X2, molecules as weak Lewis
- Lewis Acids and Bases. Monday, October 11. CHEM 462.
- Lewis acids and bases
- Lewis acids and bases. Definition of Lewis acids and bases: →A Lewis acid is an electron pair acceptor. (we write A).
- Green Lewis acid catalysis in organic synthesis*
- Lewis acid–surfactant-combined catalysts, which can be used for reactions in water Lewis acid catalysis has been of great interest in organic synthesis .
- Diastereoselection in Lewis-Acid-Mediated Aldol Additions
- recent development of chiral Lewis acids.
Suggested News Resources
- MICROWAVE-ASSISTED SOLVENT-FREE SYNTHESIS OF 3,4-DIHYDROPYRIMIDIN-2(1H)-ONES
- In recent years, a variety of catalytic methods for promoting the Biginelli reaction have been developed employing various metal salts as Lewis acid catalysts including LiBr 8, NiCl2.6H2O and FeCl3.6H2O 9, CuCl2.
- SUGAR-MODIFIED DERIVATIVES OF CYTOSTATIC 6-(HET)ARYL-7-DEAZAPURINE NUCLEOSIDES
- In this particular case the rearrangement was catalyzed by PdCl2(PPh3)4 as a Lewis acid. Final desilylations of 20b and 20c using TBAF led to target 6-hetaryl-7-deazapurine arabinonucleosides 21b and 21c in 72 and 77% yields, respectively.
- Toyota create first magnesium-sulfur rechargeable battery
- The research team reacted a non-nucleophilic organomagnesium halide, hexamethyldisilazide magnesium chloride, with the Lewis acid aluminium chloride.
Suggested Web Resources
- The Lewis Acid
- A Lewis acid is an electron pair acceptor. point; any Arrhenius acid or base, or any Bronsted-Lowry acid or base can also be viewed as a Lewis acid or base.
- Lewis acids and bases
- A Lewis acid is defined to be any species that accepts lone pair electrons. A Lewis base is any species that donates lone pair electrons.
- The Lewis Definitions of Acids and Bases
- In the Lewis theory of acid-base reactions, bases donate pairs of electrons and acids accept pairs of electrons.
- Lewis Acid/Base Reaction Chemistry
- Classifying Lewis acid behaviour: All species with an electron pair accepting ( vacant) orbital.
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