Frost, Arthur

Frost, Arthur A., and Ralph G. Pearscm Kiiietics and Mechanism, John Wiley A Sons, Inc., New York, 1953. 

Alexandrovich, 593 Fripiat Joseph G., 103, 155, 441, 565, 749 Frisch Aeleen, 687 Froelich Piotr, 328 Frost Arthur A., 428 Fujimoto Hiroshi, 885 Fukui Kenichi 174, 885,... 

The circle mnemonic was de vised by Arthur A Frost a theoretical chemist at North western University... 

The circle mnemonic was devised by Arthur A. Frost, a theoretical chemist at Northwestern University. 

Arthur A. Frost, Department of Chemistry, Northwestern University, Evanston, Illinois... 

The energy states of the 7c-orbitals can be determined graphically for simple cyclic TC-systems using the scheme developed by Arthur A. Frost and Boris Musu-lin. The polygon is drawn standing on a vertex in a circle, the radius of which, by definition, corresponds to double of the resonance energy 3. One molecular orbital is allocated to each comer of the polygon. The vertical distance from the... 

Molecular orbitals below the midpoint of the cyclic structure are bonding molecular orbitals, those above the midpoint are antibonding molecular orbitals, and any at the midpoint are nonbonding molecular orbitals. This simple scheme is sometimes called a Frost device (or a Frost circle) in honor of Arthur A. Frost, the scientist who devised it. 

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