Physical organic chemistry

Physical organic chemistry

Physical organic chemistry is the study of the interrelationships between structure and reactivity in organic molecules. It a part of organic chemistry by using tools of physical chemistry such as chemical equilibrium, chemical kinetics, thermochemistry, and quantum chemistry.

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Physical organic chemistry

pericyclic reaction

Chemistry; Physical organic chemistry

A chemical reaction in which concerted reorganization of bonding takes place throughout a cyclic array of continuously bonded atoms. It may be viewed as a reaction proceeding through a fully ...

periselectivity

Chemistry; Physical organic chemistry

The differentiation between two or more symmetry-allowed processes, for example the (2+4) vs. (4+6) cycloaddition of cyclopentadiene to tropone.

persistent

Chemistry; Physical organic chemistry

The term persistent is used to characterize radicals which have lifetimes of several minutes or greater in dilute solution in inert solvents. Persistence is a kinetic or reactivity property. In ...

phase-transfer catalysis

Chemistry; Physical organic chemistry

The phenomenon of rate enhancement of a reaction between chemical species located in different phases (immiscible liquids or solid and liquid) by addition of a small quantity of an agent (called the ...

photolysis

Chemistry; Physical organic chemistry

The cleavage of one or more covalent bonds in a molecular entity resulting from absorption of light, or a photochemical process in which such cleavage is an essential part. For example: Cl 2 → 2 Cl ...

pH-rate profile

Chemistry; Physical organic chemistry

A plot of observed rate coefficient, or more usually its decadic logarithm, against pH of solution, other variables being kept constant.

polar effect

Chemistry; Physical organic chemistry

For a reactant molecule RY, the polar effect of the group R comprises all the processes whereby a substituent may modify the electrostatic forces operating at the reaction center Y, relative to the ...