What is the formula of average bond length calcultion for orthorhombic crystal structure? By using Xrd data give some references paper ? Includes orthorhombic crystal structure .
A simple formula for calculating the bond length does not exist (except perhaps for elements with cubic symmetry). The bond length can be calculated from specific structural data for a specific phase. It is necessary to know the space group, the parameters of the cell and the positions of the atoms in the cell. For example, the older but freely available program XtalDraw has impemented calculation.
If u have cif file for the structure u can get it for each bond length for any two atoms through vesta software. for orthorhombic structure, u may have 2.66 amstrong check this cif file for reference It can be opened in vesta and diamond crystal viewer or Jmol