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Two Znic (Ⅱ) Complexes Constructed from a Bis (salamo)-type Tetraoxime Ligand:Syntheses,Crystal Structures and Luminescence Properties |
Author Name | Affiliation | E-mail | YANG Yu-Hua | School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China | | HAO Jing | School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China | | DONG Yin-Juan | School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China | | WANG Gang | School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China | | DONG Wen-Kui | School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China | dongwk@126.com |
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Abstract: Two Zn (Ⅱ) complexes,[Zn3(L)(OAc)2(H2O)](1) and[Zn3(L)(OAc)2(H2O)]·[Zn3(L)(OAc)2(CH3OH)(H2O)]·3CH3OH·H2O (2) have been synthesized via the complexation of zinc (Ⅱ) acetate dihydrate with a bis (salamo)-type tetraoxime ligand H4L (H4L=6,6'-diethoxy-bis (2,2'-(ethylenedioxybis (nitrilomethylidyne))) tetraphenol).X-ray crystallographic analyses reveal formation of trinuclear structures consisting of two salamo-type L4- ligands and three Zn (Ⅱ) atoms as expected from the analytical data.Two of the three Zn (Ⅱ) atoms are located in the salamo-type L4- chelate moieties.The μ-phenoxo oxygen atoms of the[Zn (L)]chelates further coordinate to centre Zn (Ⅱ) atom.The trinuclear structure is probably stabilized by the two μ-acetato ligands,which neutralize the whole charge of the complexes 1 and 2.There are two kinds of coordination geometries (trigonal bipyramidal and square pyramidal or trigonal bipyramidal and octahedral geometries) in complexes 1 and 2.In addition,complexes 1 and 2 exhibit strong green emission λmax=531 and 536 nm when excited with 340 and 337 nm,respectively. |
Keywords: bis (salamo)-type tetraoxime ligand Zn(Ⅱ) complex synthesis crystal structure luminescence property |
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YANG Yu-Hua,HAO Jing,DONG Yin-Juan,WANG Gang,DONG Wen-Kui.Two Znic (Ⅱ) Complexes Constructed from a Bis (salamo)-type Tetraoxime Ligand:Syntheses,Crystal Structures and Luminescence Properties[J].Chinese Journal of Inorganic Chemistry,2017,33(7):1280-1292. |
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