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Two Znic (Ⅱ) Complexes Constructed from a Bis (salamo)-type Tetraoxime Ligand:Syntheses,Crystal Structures and Luminescence Properties
Author NameAffiliationE-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 
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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Chinese Journal of Inorganic Chemistry