Powder XRD data were obtained on small batches of microcrystalline 1-Ln that were suspended in Fomblin ® oil to prevent sample decomposition from oxygen and water. These samples were mounted on a Micromount TM and placed on a goniometer head under a cryostream to cool the sample to 100 K, freezing the Fomblin ® to suspend the crystallites for the duration of the experiment. The PXRD data were measured on a Rigaku FR-X diffractometer, operating in powder diffraction mode using Cu Kα radiation (λ = 1.5418 Å) with a Hypix-6000HE detector and an Oxford Cryosystems nitrogen flow gas system. Data were collected between 3-70 °θ, with a detector distance of 150 mm and a beam divergence of