RT Journal Article SR Electronic T1 Superheavy carbonyls JF Science JO Science FD American Association for the Advancement of Science SP 1451 OP 1452 DO 10.1126/science.1259349 VO 345 IS 6203 A1 Loveland, Walter YR 2014 UL http://science.sciencemag.org/content/345/6203/1451.abstract AB