Which of the following statements about semi-empirical methods are true:
a) it gives an exact solution to quantum mechanical equations
b) some experimentally measured parameters are substituted into the calculation
c) it is good at predicting structural properties that arise from subtle interactions of orbitals
d) it can be used for static molecules but not for reactions in which bonds are forming or broken
Answer: b) some experimentally measured parameters are substituted into the calculation
And
c) it is good at predicting structural properties that arise from subtle interactions of orbitals