closed-shell carbon frameworks

См. также в других словарях:

• chemical bonding — ▪ chemistry Introduction       any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …   Universalium

• building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …   Universalium

• Climate change mitigation — Fossil fuel related CO2 emissions compared to five of IPCC s emissions scenarios. The dips are related to global recessions. Data from IPCC SRES scenarios; …   Wikipedia

• Mac OS X — OSX redirects here. For other uses, see OSX (disambiguation). Mac OS X …   Wikipedia

• Artificial intelligence — AI redirects here. For other uses, see Ai. For other uses, see Artificial intelligence (disambiguation). TOPIO, a humanoid robot, played table tennis at Tokyo International Robot Exhibition (IREX) 2009.[1] Artificial intelligence ( …   Wikipedia

• Energy policy of Canada — Canada is the 5th largest producer of energy in the world, producing about 6% of global energy supplies. It is the world s largest producer of natural uranium, producing one third of global supply, and is also the world s leading producer of… …   Wikipedia

• Ireland — Irelander, n. /uyeur leuhnd/, n. 1. John, 1838 1918, U.S. Roman Catholic clergyman and social reformer, born in Ireland: archbishop of St. Paul, Minn., 1888 1918. 2. Also called Emerald Isle. Latin, Hibernia. a large western island of the British …   Universalium