Synthesis, Structure, and Photophysical Properties of Platinum(II) (N,C,N') Pincer Complexes Derived from Purine Nucleobases†.

ABSTRACT: The synthesis of a series of Pt{κ³-N,C,N'-[L]}X (X = Cl, RC≡C) pincer complexes derived from purine and purine nucleosides is reported. In these complexes, the 6-phenylpurine skeleton provides the N,C-cyclometalated fragment, whereas an amine, imine, or pyridine substituent of the phenyl ring supplies the additional N'-coordination point to the pincer complex. The purine N,C-fragment has two coordination positions with the metal (N1 and N7), but the formation of the platinum complexes is totally regioselective. Coordination through the N7 position leads to the thermodynamically favored [6.5]-Pt{κ³-N7,C,N'-[L]}X complexes. However, the coordination through the N1 po

SUBMITTER: Lorenzo-Aparicio C 

PROVIDER: S-EPMC10230507 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature