Quantum and chemical calculation of molecules of some connections with minor cycles by AM1 method

For the first time it is executed quantum chemical calculation of a molecules of ethylcyclopropane, bicyclo[6,1,0]nonane, 1-hlor-1-brom-2,2-dimethylcyclopropane by method AM1 with optimization of geometry on all parameters. The optimized geometrical and electronic structure of this connections is received. Acid force of ethylcyclopropane, bicyclo[6,1,0]nonane, 1-hlor-1-brom-2,2-dimethylcyclopropane is theoretically appreciated. It is established, than it to relate to a class of very weak H-acids (28 ≤ pKa