TY - JOUR
T1 - Hyper-Coordinate phosphorus atoms in a golden hour-glass
AU - Schmidbaur, H.
AU - Beruda, H.
AU - Zeller, E.
PY - 1994/2/1
Y1 - 1994/2/1
N2 - Treatment of phosphine, PH3, or bis(piva1oy1)phosphine, (t BuCO)2PH, with (tris[(triphenylphosphine)gold]oxonium) tetraf1uoroborate (Ph3PAu)30* BF4" in tetrahydrofuran at -60°C affords small amounts of a tricationic nona-nuclear gold complex (Au[P(AuPPh3)4]2)3+ (BF4-)3. The low temperature (1 H) 31 P NMR spectra of this product exhibit an (A4M)2 spin system indicating a highly symmetrical species of or D4h symmetry in solution. The structure, resembling a golden hour-glass, has been confirmed by an X-ray diffraction analysis of single crystals (tetragonal space group 14/mmm, Z = 2, a = 16.878(2), c = 30.320(3) Å). The trication contains two square pyramidal P(AuPPh3)4+ units P-coordinated to the central Au+ cation.
AB - Treatment of phosphine, PH3, or bis(piva1oy1)phosphine, (t BuCO)2PH, with (tris[(triphenylphosphine)gold]oxonium) tetraf1uoroborate (Ph3PAu)30* BF4" in tetrahydrofuran at -60°C affords small amounts of a tricationic nona-nuclear gold complex (Au[P(AuPPh3)4]2)3+ (BF4-)3. The low temperature (1 H) 31 P NMR spectra of this product exhibit an (A4M)2 spin system indicating a highly symmetrical species of or D4h symmetry in solution. The structure, resembling a golden hour-glass, has been confirmed by an X-ray diffraction analysis of single crystals (tetragonal space group 14/mmm, Z = 2, a = 16.878(2), c = 30.320(3) Å). The trication contains two square pyramidal P(AuPPh3)4+ units P-coordinated to the central Au+ cation.
KW - Gold clusters
KW - Hypercoordinate phosphorus; NMR spectroscopy
KW - X-ray crystallography
UR - http://www.scopus.com/inward/record.url?scp=21844523091&partnerID=8YFLogxK
U2 - 10.1080/10426509408037457
DO - 10.1080/10426509408037457
M3 - Article
AN - SCOPUS:21844523091
SN - 1042-6507
VL - 87
SP - 245
EP - 255
JO - Phosphorus, Sulfur and Silicon and the Related Elements
JF - Phosphorus, Sulfur and Silicon and the Related Elements
IS - 1-4
ER -