  Atom connecting positions(ACPs) are positions where an atom is connecting to
another one or a few atoms, which is needed when constructing final state used
in chain-of-state(CoS) methods for transition state(TS) locating and minimum
energy path(MEP) searching, especially with bond formation.
  However, ACPs are generated with chemical insight and experience, which is
not only low efficient and time wasting, but the manually generated structure
may be far from the optimized one.
  A efficient method is presented here for generating ACPs which is based on
spherical optimization and VSEPR theory without manual interfering.
  Several examples are testified to prove the efficiency and robustness of the
method.
