Preparation and Photoluminescent Properties of Gold(I)−Alkanethiolate Complexes Having Highly Ordered Supramolecular Structures
Chemistry of Materials2007Vol. 19(25), pp. 6297–6303
Citations Over TimeTop 10% of 2007 papers
Abstract
Au(I)–alkanethiolates (Au(I)–SRs, R = –(CH2)nH, n = 2−10, 12, 14, 16, and 18) are synthesized by mixing gold salt, HAuCl4, and n-alkanethiols in tetrahydrofuran. Au(I)–SRs show a highly ordered layer structure, and the ordering increases as the length of the alkyl chain increases. Au(I)–SRs with n ≥ 4 emit a bright orange-red light (λem ∼ 610 nm) visible to the naked eye upon irradiation with UV light, and the emission intensity increases with increasing length of the alkyl chain. We also found that noticeable aurophilic interactions between Au(I)–Au(I) exist for the Au(I)–SRs with longer alkyl groups having highly ordered layer structures.
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