| 초록 |
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 emit bright orange-red light (λem ~ 610 nm) visible to the naked eye upon the irradiation with UV light and the emission intensity increases with increasing the length of the alkyl chain. We also found that noticeable aurophilic interactions between the Au(I)-Au(I) exists for the Au(I)-SRs with longer alkyl groups having highly ordered layer structures. Additionally, it was found that the Au(I)-SRs can be used as precursors for gold nanoparticles. |
