Abstract
Complexes [Pt(moppy)(PPh2Py)Cl] (1), [Pt(moppy)(PPh2Py)]PF6 (2) and [Pt2(moppy)2(CH3CN)2Ag(m‐PPh2Py)2](PF6)3 (3) have been synthesized through choosing suitable experimental condition to modulate the coordination mode of PPh2Py. Crystal structures indicate that 1 and 2 show distinct mononuclear structures, and complex 3 is a [Pt‐Ag‐Pt] cluster. In a CH2Cl2–H2O mixed solvent, complexes 1 and 2 can be interconverted upon alternately adding AgPF6 and NaCl. Complex 3 can dissociate into complex 2 in solution. These complexes reveal different luminescence. In deaerated acetone, complex 1 is non‐luminescent, while 2 show green luminescence with main emissions at 511 and 534 nm. Complexes 1 and 2 in solid state show similar green luminescence, but significant differences in quantum yield, Φ = 7.4% for 1, and Φ = 17.6% for 2. Compared to 1 and 2, complex 3×CH3COCH3 exhibits yellow solid‐state luminescecne (Φ = 14.1%). In this paper, we discussstructural transition among complexes 1‐3 and luminescence modulation.
Published Version
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