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• 12080-32-9 dichloro(1,5-cyclooctadiene)platinum(ll) 

Relevant academic research and scientific papers

Tellurium azamacrocycles: Synthesis, characterization and coordination studies

The metal-free condensation of bis(2-formylphenyl) telluride (1) with a series of diamines affords macrocyclic tellurium ligands 2-7. Crystals of the protonated macrocycle 8 are monoclinic, space group P2/n with a=10.890(5), b=7.414(4), c=24.334(13) ?, Z=2. The reaction of tellurium containing macrocyclic Schiff base 2 with Pd(C6H5CN)2Cl2 gives the expected 1:1 product [Pd(II) 2] Cl2 (9). Complex 9 was treated with excess of NH4PF6 in methanol to give the analogous PF6- salt [Pd(II) 2] (PF6)2 (10). The crystals of 10 are monoclinic, space group P21/n, a=8.2250(10), b=21.280 (4), c=21.150 (4), Z=4. However, the reaction of 2 with Pt(COD)Cl2 proceeds via novel transmetallation to yield an organoplatinum complex (11). The crystals of 11 are also monoclinic, space group P21/n, a=12.3253 (14), b=14.6557 (14), C=13.4054 (11), Z=4. The octahedral Ni(II) complex 12 was prepared by the reaction of NiCl2·6H2O with 2 and NH4PF6 under an inert atmosphere. For 12: triclinic, space group P1?; Z=2; a=10.800(8), b=13.468(9), c=13.918(11), α=89.67(6)°, β=101.53(7)°, γ=81.49(3)° and V=1961(3). Cyclic voltammetry of 12 in MeCN solution shows a well-behaved quasi-reversible (ΔE=100 mV) Ni(III) ? Ni(II) couple.

Synthesis and single crystal X-ray structure of the first cationic Pd(II) complex of a tellurium-containing polyaza macrocycle: Contrasting reactions of Pd(II) and Pt(II) with a 22-membered macrocyclic Schiff base

The reaction of the tellurium containing macrocyclic Schiff base 1 with Pd(PhCN)2Cl2 and NH4PF6 gives the expected cationic complex [Pd(II)1][PF6]2; by contrast the reaction of 1 with Pt(cod)Cl2 proceeds via novel transmetallation to yield an organoplatinum complex.