Synthesis and Fluorescence Properties of a Structurally Characterized Hetero-Hexanuclear Zn(II)-La(III) Salamo-Like Coordination Compound Containing Auxiliary Ligands

oleh: Wen-Ting Guo, Ling-Zhi Liu, Meng Yu, Fei Wang, Jian-Chun Ma, Wen-Kui Dong

Format: Article
Diterbitkan: MDPI AG 2018-11-01

Deskripsi

A hetero-hexanuclear Zn(II)-La(III) coordination compound, [{(ZnL)<sub>2</sub>La}<sub>2</sub>(bdc)<sub>2</sub>](NO<sub>3</sub>)<sub>2</sub> (H<sub>2</sub>bdc = terephthalic acid) has been synthesized with a symmetric Salamo-like bisoxime, and characterized by elemental analyses, IR, UV-Vis, fluorescent spectroscopy, and single-crystal X-ray diffraction analysis. All of the Zn(II) ions are pentacoordinated by N<sub>2</sub>O<sub>2</sub> donator atoms from the (L)<sup>2&#8722;</sup> unit and one oxygen atom from one terephthalate anion. The Zn(II) ions adopt trigonal bipyramidal geometries (<i>&#964;</i><sub>Zn1</sub> = 0.61, <i>&#964;</i><sub>Zn2</sub> = 0.56). The La(III) ions are decacoordinated in the Zn(II)-La(III) coordination compound and has a distorted bicapped square antiprism geometry. Meanwhile, the photophysical property of the Zn(II)-La(III) coordination compound was also measured and discussed.