Quantum and chemical calculation of some cyclopropanes by AM1 method

For the first time it is executed quantum chemical calculation of some cyclopropanes of 1,1-dihlor-2-p-hlorphenyl-2-methylcyclopropane, 1,1-dihlor-2-phenylcyclopropane, 1-methyl-1vinil-2,2-dihlorcyclopropane by method AM 1 with optimization of geometry on all parameters. The optimized geometrical and electronic structure of this connections is received. Acid force of 1,1-dihlor-2-p-hlorphenyl-2-methylcyclopropane, 1,1-dihlor-2-phenylcyclopropane, 1-methyl-1vinil-2,2-dihlorcyclopropane is theoretically appreciated. It is established, than it to relate to a class of very weak H-acids (+20 ≤ рКа ≤ +26, where pKa-universal index of acidity).