Data were collected as ω scans of 0.5º frames with CrysAlis PRO . The data were integrated and reduced using CrysAlis PRO (Rigaku 2018 or Rigaku 2023). An absorption correction (either gaussian or multi-scan) was applied. The structures were solved by direct methods using SHELXT-2016/4, S2 as implemented in Olex2. The structures were fully refined with SHELXL-2016/4. S2 All non-hydrogen atoms were refined with anisotropic displacement coefficients. Hydrogen atoms were placed in calculated positions and assigned isotropic displacement coefficients, and their coordinates were allowed to ride on the respective carbon atoms. The SQUEEZE protocol of PLATON or the solvent masking routine of Olex2 was used. The resulting refinement R factors, goodness-of-fit, and the refinement stability of the structures were used to determine the final metal composition (Tables ).