Self-consistent fields semiempirical quantum-chemistry

Over the past decades the semiempirical molecular orbital (MO) methods of quantum chemistry have been used widely in computational studies. Self-consistent-field (SCF) tr-electron calculations have been carried out since the 1950s and valence-electron calculations since the 1960s. Several books [1-8] and reviews [9-15] describe the underlying theory, the variants of semiempirical methods, and the numerical results in much... 

---