SYNTHESIS AND MICROCRYSTAL STRUCTURE DETERMINATION OF [AU10(PPH3)7(S2C2(CN)2)2] WITH MONOCHROMATIC SYNCHROTRON-RADIATION

The structure of this high nuclearity gold cluster has been determined from a single microcrystal of dimensions 10 x 10 x 30 mum (the X-ray diffraction data were recorded with synchrotron radiation using an Enraf-Nonius area detector diffractometer at Daresbury Laboratory); in the cluster three trigonal bipyramidal Au5 groups share a common central gold atom and share edges; the group of ten gold atoms has symmetry near to D3h, but when the seven triphenyl phosphine and two dithiolene ligands are taken into account the molecular symmetry is very approximately C2.