• Title of article

    Crystal structure of posnjakite formed in the first crystal water-cooling line of the ANSTO Melbourne Australian Synchrotron MX1 Double Crystal Monochromator

  • Author/Authors

    Mills, Stuart Geosciences - Museum Victoria, Australia , Aishima, Jun Brookhaven National Laboratory, USA , Aragao, David Australian Synchrotron - ANSTO - Melbourne, Australia , Caradoc-Davies, Tom Tudor Australian Synchrotron - ANSTO - Melbourne, Australia , Cowieson, Nathan Australian Synchrotron - ANSTO - Melbourne, Australia , Gee, Christine L. Australian Synchrotron - ANSTO - Melbourne, Australia , Ericsson, Daniel Australian Synchrotron - ANSTO - Melbourne, Australia , Harrop, Stephen Australian Synchrotron - ANSTO - Melbourne, Australia , Panjikar, Santosh Australian Synchrotron - ANSTO - Melbourne, Australia , Louise Smith, Kate Mary Australian Synchrotron - ANSTO - Melbourne, Australia , Riboldi-Tunnicliffe, Alan Australian Synchrotron - ANSTO - Melbourne, Australia , Williamson, Rachel Australian Synchrotron - ANSTO - Melbourne, Australia , Price, Jason Roy Australian Synchrotron - ANSTO - Melbourne, Australia

  • Pages
    8
  • From page
    1
  • To page
    8
  • Abstract
    Exceptionally large crystals of posnjakite, Cu4SO4(OH)6(H2O), formed during corrosion of a Swagelock(tm) Snubber copper gasket within the MX1 beamline at the ANSTO-Melbourne, Australian Synchrotron. The crystal structure was solved using synchrotron radiation to R1 = 0.029 and revealed a structure based upon [Cu4(OH)6(H2O)O] sheets, which contain Jahn–Teller-distorted Cu octa­hedra. The sulfate tetra­hedra are bonded to one side of the sheet via corner sharing and linked to successive sheets via extensive hydrogen bonds. The sulfate tetra­hedra are split and rotated, which enables additional hydrogen bonds.
  • Keywords
    crystal structure , copper corrosion , equipment failure , posnjakite , hydrogen bonding
  • Journal title
    Acta Crystallographica Section E: Crystallographic Communications
  • Serial Year
    2020
  • Full Text URL
    journals.iucr.org/e/issues/2020/07/00/tx2024/tx2024.pdf
  • Record number

    2623529

    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=2623529