What is a bridgehead in chemistry?
Bridgehead: An atom that is part of two or more rings in a polycyclic molecule. Bridgehead carbons in naphthalene. Bridgehead carbons in 2-chlorobicyclo[2.21]heptane. All eight carbons of cubane are bridgehead atoms.
What is the terms of organic chemistry?
Organic chemistry is the scientific study of the structure, properties, composition, reactions, and synthesis of organic compounds that by definition contain carbon. It is a specific discipline within the subject of chemistry.
What is a bridgehead in the military?
bridgehead. / (ˈbrɪdʒˌhɛd) / noun military. an area of ground secured or to be taken on the enemy’s side of an obstacle, esp a defended river. a fortified or defensive position at the end of a bridge nearest to the enemy.
What does organic chemistry deal?
Organic chemistry is the study of the structure, properties, composition, reactions, and preparation of carbon-containing compounds. Most organic compounds contain carbon and hydrogen, but they may also include any number of other elements (e.g., nitrogen, oxygen, halogens, phosphorus, silicon, sulfur).
How do you identify bridgehead carbon?
Bicyclic Ring Systems A bridged bicycloalkane is a bicycloalkane whose molecule has two carbon atoms shared by all three rings identifiable in the molecule. The two carbon atoms shared by the three rings are called bridgehead carbon atoms.
Can bridgehead carbon be chiral?
The topmost bridgehead carbon is chiral but due to molecular symmetry, the molecule is achiral.
What is difference between organic and inorganic chemistry?
Organic compounds and inorganic compounds form the basis of chemistry. The primary difference between organic vs. inorganic compounds is that organic compounds always contain carbon while most inorganic compounds do not contain carbon. Also, nearly all organic compounds contain carbon-hydrogen or C-H bonds.
Why is it called a bridgehead?
Bridgehead (French tête de pont) is a High Middle Ages military term, which before the invention of cannons meant the military fortification that protects the end of a bridge.
What is a firefighting bridgehead?
It can be defined as :…a strong position secured by an army inside enemy territory from which to advance or attack. ” In this analogy to the military term the FRS should think of the Bridgehead as: A safe position inside the building from which to carry out fire fighting operations.
Why is organic chemistry unique?
The uniqueness of carbon stems more from the fact that it forms strong carbon-carbon bonds that also are strong when in combination with other elements. For example, the combination of hydrogen with carbon affords a remarkable variety of carbon hydrides, or hydrocarbons as they usually are called.
What is the hybridization of bridgehead carbon?
The normal geometry for a sp2 hybridized carbon is trigonal planar. However, due to the constraints placed on it by being part of multiple rings, the bridgehead carbon becomes “pyramidalized”, that is to say, somewhat like a pyramid (non-planar). In other words it has a very atypical shape for an sp2 hybridized carbon.