Two isomeric Au complexes of S-trithiane: One-dimensional polymer assembled through aurophilic interactions

Two isomeric Au complexes, [Au(Stt)Cl]n (1) and [Au(Stt)Cl]4n (2) (Stt = S-trithiane), have been prepared and structurally and spectroscopically characterized. Each compound crystallizes as a unique form with aurophilic interactions between the linear and two-coordinated Au(I) cations. In complex 1, the Au(Stt)Cl molecules self-associate to form 1D nearly linear chains via equivalent aurophilic interactions, whereas the structure of complex 2 features 1D flexural chains composed of zigzag [Au(Stt)Cl]4 tetramers through varying aurophilic interactions. Emission spectra of both complexes at room temperature give strong red luminescence.

Two isomeric Au complexes, [Au(Stt)Cl]n (1) and [Au(Stt)Cl]4n (2) (Stt = S-trithiane), have been prepared and structurally and spectroscopically characterized. Complexes 1 and 2 feature 1D nearly linear chains and flexural chains composed of Au(Stt)Cl molecules via varying aurophilic interactions, respectively. Luminescent spectrums illuminate both red emissions of the title complexes at room temperature.Figure optionsDownload as PowerPoint slide