[2,2′-Bipyridyl]platinum(II) Complexes with Fluorinated Benzenethiolate Ligands: Synthesis and Structural Elucidation

Abstract

A series of platinum thiolate complexes of the type [Pt(bpy)(SR_F)₂] (bpy = 2,2′-bipyridyl and SR_F = ⁻ SC₆F₅ (1), ⁻ SC₆F₄-4-H (2)) have been synthesized in good yields by metathetical reactions of [Pt(bpy)Cl₂] with [Pb(SR_F)₂], (SR_F = ⁻ SC₆F₅, ⁻ SC₆F₄-4-H) and their crystal structures determined. The effect of the different thiolates in the structural properties of the complexes both in the solid state and in solution have been analyzed. The analyses in solid state suggests that the difference in π–π interactions among the aromatic rings may cause the different arrangements of the molecules in the crystal structures.

Keywords:

• 2,2′-Bipyridyl (bpy)
• Fluorinated thiolate complexes
• Platinum complexes
• Crystal engineering
• π–π Stacking

Acknowledgements

M. C-R would like to thank CONACYT for financial support. The authors would like to thank Chem. Eng. Luis Velasco Ibarra, M. Sc. Francisco Javier Pérez Flores, Eréndira García Ríos and Ma. de las Nieves Zavala for their invaluable help in the running of the FAB⁺-Mass, IR and ¹⁹F{¹H} spectra respectively. The support of this research by CONACYT (J41206-Q, 40332-Q) and DGAPA-UNAM (IN114605, IN216806) is gratefully acknowledged.