Metal‐Crossing between Thiolato‐Bridged Tetragold(I) and Tetrasilver(I) Metallorings

The postman always rings twice: Thiolato-bridged AuI4 and AgI4 metallorings were selectively prepared by the reactions of benzothiazolines with AuI and AgI, respectively. Simple 1:1 mixing of the AuI4 and AgI4 metallorings led to the quick, exclusive formation of AuI2AgI2 metallorings from an unprecedented metal-crossing reaction that produces a single kind of heterometallic rings from two kinds of homometallic rings.