Cyclometallated Platinum(II) Complexes with Small Crown Ether Rings: Appropriate Choice of the Bridging Diphosphane to Coordinate Potassium Cations.

ABSTRACT: This account reports the synthesis and structural characterization of the first cyclometallated platinum(II) complex that coordinates a potassium cation in a sandwich arrangement via two 15-crown-5 ether rings within the same molecule. The cooperation of the two small crown ether moieties allows the entrapment of the non-ideal potassium ion. The reaction of the parent thiosemicarbazone ligand 3,4-(C₈H₁₆O₅)C₆H₃C(Me)=NN-(H)C(=S)NHMe, 1, containing the crown ether ring, with K₂[PtCl₄], or alternatively with PtCl₂(DMSO)₂, and subsequent treatment with the diphosphanes Ph₂PCH₂PPh₂ (dppm) and Ph₂PC(=CH₂)PPh₂ (vdpp) produced th

SUBMITTER: Lucio-Martinez F 

PROVIDER: S-EPMC9609057 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature