2.3. X-ray Diffraction Structure of NiCl2∙6H2O The local coordination environment at Ni is shown inFigure 4. NiCl2∙6H2O,3, crystallizes inI2/mwithZ′ = 0.25, a mirror bisecting the NiCl2and O(2)H2non-coordinated water as well as1̲1¯symmetry at the Ni. The trans-disposed ...