Dear all,
Is there a reference list to show the initial value of the
 bond length between 2 atoms? (e.g what is the bond length between the
pairs of atom (a, b), (c, d) (a, e) and etc. What is the minimum and
maximum value of the bond length?)
 angle between 3 atoms? (e.g what is the angle between atom (a, b, c),
(c, d, e), (a, e, j) and etc).
 torsion between 4 atoms? (e.g what is the torsion between atom (a, b, c,
d), (c, d, e, g), (a, e, j, k) and etc).
I need the above values to fill up a Zmatrix table and to create a
Zmatrix program so that I can input the information of a structure. If
the bond lengths and the angles are fixed, what parameters do I need to
calculate the torsion angles and to vary the torsion angles?
Are there any files and source codes in Avogadro distribution related to
my questions?
Thanks & regards,
Sandy
