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A room-temperature molten salt has been prepared from AuCl3 and 1-ethyl-3-methylimidazolium chloride (EMIC). At a ratio of 1 mol of AuCl3 to 2 mol of EMIC, the salt is a bright yellow-orange and shows Raman spectral features at 170, 328, and 352 cm-1, indicating the presence of AuCl4-. Ab initio calculations indicate that a dinuclear Au2Cl7- species containing a bridging chlorine should be stable, but no such species has been observed.