Aprotic synthesis and structural determination of the nanosized nonprotonated nu3-octahedral [Pt6Ni38(CO)48]6- hexaanion stabilized as a cubic solvated [NMe4]+ salt.
The nonprotonated member, 1 (n = 6), of the previously established nanosized nu3-octahedral [H(6-n)Pt6Ni38(CO)48]n- series (n = 3-6) has been isolated from an aprotic synthetic route and stabilized as the crystal-ordered cyclohexane/acetonitrile-solvated [NMe4]+ salt. A highly precise X-ray determination (cubic; Pa3; Z = 4 with 1 possessing -3 site symmetry) has allowed a comparative analysis of the nonprotonated pseudo-D3d structure of 1 with the monoprotonated structure of 2 (n = 5), which constitutes the only previously reported complete geometry of any member of this extraordinary Pt6-encapsulated nu3-octahedral Pt6Ni38 cluster series.
de Silva
Namal
N
Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, USA.
Dahl
Lawrence F
LF