Abstract
Two classical metal clusters, (Cu4I4)-I-I and (Cu6S6)-S-I, are introduced as functional connecting nodes to construct a novel multi-metal-cluster MOF [((Cu4I4)-I-I)(3)(Cu-6(I))(2)(3-ptt)(12)](n)center dot 24nDEF center dot 12nH(2)O (1) that incorporate their inherent luminescent properties, induced by their respective metal-metal interactions. These two distinct clusters are combined together for the first time to perform as functional luminophores that display unusual dual emission with both thermochromic luminescence and near-infrared (NIR) character.