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Updated: Feb 7, 2026

Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents
Published on: May 28, 2014
PtPt interaction triggered tuning of circularly polarized luminescence activity in chiral dinuclear platinum(ii)
Xiao-Peng Zhang1, Li-Li Wang1, Xiao-Wei Qi1
1Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, People's Republic of China. zxp_inorganic@126.com zaifengshi_hnnu@sina.com.
Abstract:
Circularly polarized luminescence (CPL) activity switched by PtPt interaction is disclosed in two couples of dinuclear Pt(ii) complex enantiomers. Upon varying the length of the bridging ligand, intramolecular metal-metal interaction manipulation is achieved as evidenced from crystal structures. Complex (-)-1 exhibiting strong PtPt interaction displays red phosphorescence with a maximum peak at 638 nm, while complex (-)-2 exhibiting weak PtPt interaction displays green phosphorescence with a maximum peak at 530 nm. The observed CPL was opposite in sign for the two complexes. TD-DFT simulations further confirmed the influence of the PtPt distance on the difference in the electronic optical activities.
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