Welcome to our book review site go-pdf.online!
You may have to Search all our reviewed books and magazines, click the sign up button below to create a free account.
Qualitative Valence-Bond Descriptions of Electron-Rich Molecules: Pauling “3-Electron Bonds” and “Increased-Valence” Theory
This book provides qualitative molecular orbital and valence-bond descriptions of the electronic structures for electron-rich molecules, with strong emphasis given to the valence-bond approach. Electron-rich molecules form an extremely large class of molecules, and the results of quantum mechanical studies from different laboratories indicate that qualitative valence-bond descriptions for many of these molecules are incomplete in so far as they usually omit "long-bond" Lewis structures from elementary descriptions of bonding. For example, the usual representation for the electronic structure of the ground-state for 03 involves resonance between the (+1 o and Until standard Lewis structures ~...
Advances in Heterocyclic Chemistry
Advances in Heterocyclic Chemistry
The Battle Of France
Peter Cornwell tells the story of the greatest air battle of the Second World War when six nations were locked in combat over north-western Europe for a traumatic six weeks in 1940. He describes the day-to-day events as the battle unfolds, and details the losses suffered by all six nations involved: Britain, France, Holland, Belgium, Germany and, rather belatedly, Italy. As far as RAF fighter squadrons in France were concerned, it was an all-Hurricane show, yet it was the Blenheim and Battle crews who suffered the brunt of the casualties. Every aircraft lost or damaged through enemy action while operating in France is listed together with the fate of the crews. The RAF lost more than a thousand aircraft of all types over the Western Front during the six-week battle, the French Air Force 1,400, but Luftwaffe losses were even higher at over 1,800 aircraft.
The Statesman's Year-Book
The classic reference work that provides annually updated information on the countries of the world.
