TY - RPRT TI - UN21(3-): a structurally characterized binary actinide heptaazide anion. AU - Margaret-Jane Crawford AU - Arkady Ellern AU - Peter Mayer PY - 2005 DO - 10.1002/anie.200502484 UR - https://pubmed.ncbi.nlm.nih.gov/16308889/ ID - 16308889 ER -