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Luminescence Behavior of Polynuclear Alkynylcopper(I) Phosphines

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Abstract

A series of soluble trinuclear and tetranuclear copper(I) complexes containing μ3-ηl acetylides \([{\text{Cu}}_{\text{3}} (\mu {\text{ - dppm}})_3 (\mu _3 {\text{ - }}\eta ^{\text{1}} {\text{ - C}} \equiv {\text{CR}})]^{2 + } ,[{\text{Cu}}_{\text{3}} (\mu {\text{ - dppm}})_3 (\mu _3 {\text{ - }}\eta ^{\text{1}} {\text{ - C}} \equiv {\text{CR}})_2 ]^ + \), and \([{\text{Cu}}_{\text{4}} ({\text{PPh}}_{\text{3}} )_4 (\mu _3 {\text{ - }}\eta ^{\text{1}} {\text{ - C}} \equiv {\text{CR}})_4 ]\) have been synthesized and shown to exhibit rich photoluminescent behavior at room temperature. The electrochemistry of the trinuclear Cu(I) acetylide complexes and the excited-state redox properties of \([{\text{Cu}}_{\text{3}} (\mu {\text{ - dppm}})_3 (\mu _3 {\text{ - }}\eta ^{\text{1}} {\text{ - C}} \equiv {\text{CC}}_{\text{6}} {\text{H}}_{\text{4}} {\text{OMe - }}p)_2 ]^ + \) have been investigated. The X-ray crystal structures of \([{\text{Cu}}_{\text{3}} (\mu {\text{ - dppm}})_3 (\mu _3 {\text{ - }}\eta ^{\text{1}} {\text{ - C}} \equiv {\text{CC}}_{\text{6}} {\text{H}}_{\text{4}} {\text{OMe - }}p)_2 ]^ + \) and \([{\text{Cu}}_{\text{4}} ({\text{PPh}}_{\text{3}} )_4 (\mu _3 {\text{ - }}\eta ^{\text{1}} {\text{ - C}} \equiv {\text{CC}}_{\text{6}} {\text{H}}_{\text{4}} {\text{OMe - p}})_4 ]\) have been determined.

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  1. Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, People's Republic of China

    Vivian Wing-Wah Yam, Wendy Kit-Mai Fung & Kung-Kai Cheung

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Yam, V.WW., Fung, W.KM. & Cheung, KK. Luminescence Behavior of Polynuclear Alkynylcopper(I) Phosphines. Journal of Cluster Science 10, 37–69 (1999). https://doi.org/10.1023/A:1022600600818

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