The metal−hydrogen (M•••H) bonds in transition elements are well documented. However, the attractive Au I •••H bond interaction is rare and significant experimental evidence for it still remains a challenge. Herein, we exhibit a rare example of a C−H•••Au interaction in both the solid state and solution by employing a single-crystal X-ray diffraction study and NMR spectroscopy for the novel dinuclear Au(I) complex 1, prepared by a click reaction between organized and strained internal alkynes ((PPh 3 Au− CC−) 2 −C 6 H 4 ) as reacting partners. Furthermore, 1 was found to be highly fluorescent in nature and revealed remarkable antiproliferative properties against skin melanoma cell lines with IC 50 values ranging from 3.12 to 8.5 μM.