Synthesis of arylplatinum(II) complexes with chiral monoanionic aryldiamine ligands.: The X-ray crystal structure of (−)-[(1R,1′R)-2,6-bis{1-(dimethylamino)propyl}phenyl]chloroplatinum(II)1Dedicated to Professor Peter Maitlis in admiration of his contributions to organometallic and homogeneous catalysis research, and in thanks for his continued friendship and support.1