| Abstract: | Formation and Structure of the iso -Tetraphosphane P(PtBu2)3: a Molecule with a Planar Three-coordinated P Atom The iso-tetraphosphane P(PtBu2)3 ( 1 ) was obtained by irradiating tBu2P–P=P(Me)tBu2 ( 3 ). 1 forms hexagonal crystals (space group P63/m) with a = 1005,63(8), c = 1621,4(2) pm, Z = 2. The P(PtBu2)3 molecules are arranged in a hexagonally close packed lattice. The four P atoms in each molecule are coplanar with P–P bond distances 219.08(4) pm and P–P–P angles 120°. The observed planar geometry is in accordance with ab initio calculations. |
