Supporting Information Theoretical Study of Pt(PR 3 ) 2 (AlCl 3 ) (R=H, Me, Ph, or Cy) Including an Unsupported Bond between Transition Metal and Non-Transition Metal Elements; Geometry, Bond strength, and Prediction Shinya Tsukamoto and Shigeyoshi Sakaki* *Fukui Institute Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho 34-4, Yoshida, Sakyo-ku, Kyoto 606-8103, Japan sakaki@moleng.kyoto-u.ac.jp