ORTEP representation of 4. Hydrogen atoms and BF4− counter ion removed for clarity. Selected bond lengths (Å): Pt-P1 = 2.269(4), Pt-P2 = 2.247(3), Pt-P3 = 2.308(4), Pt-C45 = 2.150(1). Selected bond angles (deg): P1-Pt-P2 = 84.51(16), P2-Pt=P3 = 84.63(16), P1-Pt-C45 = 92.2(4), P3-Pt-C45 = 100.6(4), C3-P2-C2 = 117.0(6).