Powder X-ray diffraction data for 1-2 were collected on polycrystalline powders using a Bruker D8 ADVANCE with Cu radiation at 40 kV, 40 mA and a Johansson monochromator, 2 mm divergence slit, 2.5 degree Soller slits on the incident beam side, LynxEye detector and Bruker DIFFRAC software. Diffraction data were measured from 2θ = 2.5° -20°; step size, 0.0101°. Freshly prepared crystalline powders were loaded into borosilicate capillaries with a 0.7 mm inside diameter and measured while spinning (Fig. ).