New Self-Assembly Luminescent Molecular Triangle and Square Rhenium(I) Complexes

Abstract

Two luminescent triangle and square complexes with the general formulas [ClRe(CO)3(μ-DPB)]4 (1) and [BrRe(CO)3(μ-BPDB)]3 (2), where DPB = 4,4‘-dipyridylbutadiyne and BPDB = 1,4-bis(4‘-pyridylethynyl)-2,5-dihexyloxybenzene, were prepared by self-assembly reactions of XRe(CO)5 (X = Cl or Br) and the corresponding bis-monodentate ligands. The structures of these molecules were confirmed by a variety of techniques including NMR spectroscopy, IR spectroscopy, FAB+ mass spectrometry, and elemental analysis.