Fig. 3: Global minimum structures of PbB2O and PbB3O2 at different charge states.
From: Boron-lead multiple bonds in the PbB2O– and PbB3O2– clusters

a PbB2O–. b PbB2O2–. c PbB2O. d PbB3O2–. e PbB3O2. Bond lengths and bond angles are given in Å and degrees, respectively, at the CCSD/AVTZ level of theory. Cartesian coordinates of these structures are given in Supplementary Table 2.