Discovery of the element with atomic number 112 (IUPAC Technical Report)
2009/05/19 by Robert C. Barber, H. W. Gäggeler, Paul J. Karol +3 · 50 citations
Chemistry · Physics and Astronomy · #Astronomical and nuclear sciences #Atomic number #Atomic physics #Chemical nomenclature #Chemistry #Element (criminal law) #Identification (biology) #Nuclear physics research studies #Organic chemistry #Physics #Radioactive element chemistry and processing
paper · pdf · doi:10.1351/pac-rep-08-03-05
published in Pure and Applied Chemistry 81(7), 1331-1343 (International Union of Pure and Applied Chemistry)
openalex publication_date 2009/05/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/02
Abstract
The IUPAC/IUPAP Joint Working Party (JWP) on the priority of claims to the discovery of new elements has reviewed the relevant literature pertaining to several claims. In accordance with the criteria for the discovery of elements previously established by the 1992 IUPAC/IUPAP Transfermium Working Group (TWG), and reiterated by the 1999 and 2003 IUPAC/IUPAP JWPs, it was determined that the 1996 and 2002 claims by the Hofmann et al. research collaborations for the discovery of the element with atomic number 112 at Gesellschaft für Schwerionenforschung (GSI) share in the fulfillment of those criteria. A synopsis of Z = 112 experiments and related efforts is presented. A subsequent report will address identification of higher-Z elements including those of odd atomic number.
Citations
- Criteria that must be satisfied for the discovery of a new chemical element to be recognized
- The new element 112
- Chemical characterization of element 112
- Synthesis of the isotopes of elements 118 and 116 in theCf<mml:mprescripts/><mml:none/>249andCm<mml:mprescripts/><mml:none/>245+Ca<mml:mprescripts/><mml:none/>48fusion reactions
- Observation of the decay of292116
- Synthesis of Superheavy Nuclei in the48Ca<mml:mspace/>+244PuReaction
- α decay of110<mml:mprescripts/>273: Shell closure atN=162
- Synthesis of nuclei of the superheavy element 114 in reactions induced by 48Ca
- Doubly Magic NucleusHs162<mml:none/><mml:mprescripts/>108270
- On the Claims for Discovery of Elements 110, 111, 112, 114, 116, and 118 (IUPAC Technical Report)
- New results on elements 111 and 112
- Existence of long-lived isomeric states in naturally-occurring neutron-deficient Th isotopes
- The synthesis of superheavy nuclei in the 48Ca + 244Pu reaction
- DECAY OF AN ISOTOPE 277 112 PRODUCED BY 208 Pb + 70 Zn REACTION
- Measurements of cross sections and decay properties of the isotopes of elements 112, 114, and 116 produced in the fusion reactionsU<mml:mprescripts/><mml:none/>233,238,Pu<mml:mprescripts/><mml:none/>242, andCm<mml:mprescripts/><mml:none/>248+Ca<mml:mprescripts/><mml:none/>48
- Measurements of cross sections for the fusion-evaporation reactionsPu<mml:mprescripts/><mml:none/>244(Ca<mml:mprescripts/><mml:none/>48,xn)292−x114andCm<mml:mprescripts/><mml:none/>245(Ca<mml:mprescripts/><mml:none/>48,xn)293−x116
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