Scheme 2. Schematic representations of syntheses towards C₁₈/C₁₉-derivatized WRC and PS: (i) NaH, DMF, rt, 45 min; (ii) C₁₈H₃₇-I, rt, 15 h; (iii) Co(ClO₄)₂, MeOH, rt, 3 h; (iv) Ru(bpy)₂Cl₂, EtOH/H₂O, 100 °C, 24 h; (v) NH₄PF₆, H₂O. Detailed synthetic procedures are given in the experimental part.