Abstract
An interseting binuclear complex [Cd2(tcpa)4(bipy)2] (1) has been hydrothermally synthesized with 3, 5, 6-trichloropyridine phenoxy acetatic acid (Htcpa) and 2, 2′-bipyridine (bipy) coligands. The X-ray single-crystal diffraction analysis shows that the CdII center is situated on unusual triangular prismatic geometry formed by two pyridyl nitrogen atoms of a bipy molecule and four carboxyl oxygen atoms of four different tcpa− ligands. The four tcpa− anions play as bis-monodentate linkers and connect two CdII ions together to form the dimer structure of 1. 1 is further assembled into a 2D layer by the co-effects of π···π stacking and Cl···Cl halogen bonds interactions. Moreover, 1 exhibits intense solid-state luminescence emissions centered at 442 nm at room temperature, which mainly originates from the intraligand π → π* transitions of tcpa−. The CCDC number of 1 is 1,935,091.
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Acknowledgments
This work was supported by the Key scientific research projects in Colleges and Universities of Henan province (No. 17A150040), the Foundation for Science and Technology Innovation Talents in Henan province (No. 164100510012), Natural Science Foundation of China (Nos. 21671114 and U1804131) as well as the Tackle Key Problem of Science and Technology Project of Henan Province, China (no. 182102310897).
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Li, JX., Du, ZX. A Binuclear Cadmium(II) Cluster Based on π···π Stacking and Halogen···Halogen Interactions: Synthesis, Crystal Analysis and Fluorescent Properties. J Clust Sci 31, 507–511 (2020). https://doi.org/10.1007/s10876-019-01666-w
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DOI: https://doi.org/10.1007/s10876-019-01666-w