The total π-bond energy shows a quantum-chemical characteristic of the conjugated molecules. Based on HMO methods, a lot of people try to search for the simple general formulas of an approximated calculation for a wi...The total π-bond energy shows a quantum-chemical characteristic of the conjugated molecules. Based on HMO methods, a lot of people try to search for the simple general formulas of an approximated calculation for a wide use. So far, a large number of calculation methods have been suggested, but not the best. On展开更多
文摘The total π-bond energy shows a quantum-chemical characteristic of the conjugated molecules. Based on HMO methods, a lot of people try to search for the simple general formulas of an approximated calculation for a wide use. So far, a large number of calculation methods have been suggested, but not the best. On
