Studies on Crystal Structures and Photophysical propertiea of Luminescent Multi-nuclear d10-metal Complexes

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Syntheses and photophysical properties of halogen-or sulferbridged multinuclear metal complexes have been studied. Photoluminescence thermochromism is found for the tetranucler copper(I) iodide triphenylphosphine complex. The single crystal emits green-yellow color under UV illumination at 300 K, which turns orange at 78 K. Multi-temperature X-ray structure analyses demonstrate that the photoemission energy shifts are correlated with a deformation of four-metal core. This phenomenon suggests that the emission properties of these complexes can respond to outer environments in the crystalline-or solid-states.