YTTERBIUM (II) ION non-polymer HETAI Yb 2 2007-07-09 2011-06-04 REL 173.040 YB2 N N RCSB YB YB 2 0 N N N 13.354 13.861 1.925 0.000 0.000 0.000 YB YB2 1 [Yb+2] [Yb++] [Yb++] [Yb+2] [Yb+2] InChI=1S/Yb/q+2 SVJLBBSKJLMTRQ-UHFFFAOYSA-N ytterbium(2+) ytterbium(+2) cation RCSB RCSB