The synthesis of Ra1 was performed in a HEPA-filtered fume hood using a procedure identical to that described above for Ba1, except that the reagents were scaled appropriately such that the same number of moles were used in both experiments. Briefly, upon addition of Ra(NO3)2 in D2O to the reaction solution, a precipitate formed like that observed for the Ba1 reaction. After stirring to redissolve the precipitate, the vial was covered with Parafilm® and punctured once. This method allows for slow evaporation while minimizing the risk for external contamination by any radon gas that may be released from solution. After sitting overnight, pale-yellow irregular blocks of the formula [Ra(DB30C10)(H2O/D2O)][BPh4]2 formed. ScXRD Studies. X-ray diffraction measurements were performed on a Bruker D8 Venture diffractometer equipped with a Ims 3.0 molybdenum X-ray source (l = 0.71073 Å). Apex IV software was used for data collection and unit cell determination. The crystal structure was solved using SHELX software within the OLEX2 GUI software. Crystals of Ba1 were coated with immersion oil and mounted on a Mitegen Cryoloop. The collection was performed at room temperature to enable comparison to the Ra structure (vide infra). Crystals of Ra1 were placed in immersion oil and then mounted to a Mitegen Cryoloop with quick setting epoxy. After the epoxy had set, a plastic sheath was epoxied to the Mitegen Cryoloop for further contamination control. The epoxied Mitegen mount was surveyed for contamination before mounting on the scXRD instrument. This plastic sheath method is not optimal for cold data collections due to icing. Therefore, the collection was at room temperature. The CIF files within this report were archived in the Cambridge Crystal Data Center under CCDC depositions 2244265 and 2244266.