New compounds with potential liquid crystal properties.: Copper(II) and nickel(II) complexes of N,N′-bis(4-decyloxysalicyliden-N-n-propyl)-piperazine.: Synthesis and characterization

被引：3
作者：
Cretu, Carmen [1 ]
Cseh, Liliana [1 ,2 ]
Mehl, Goerg H. [2 ]
Costisor, Otilia [1 ]
机构：
[1] Acad Romana, Inst Chem, RO-300223 Timisoara, Romania
[2] Univ Hull, Dept Chem, Kingston Upon Hull HU6 7RX, N Humberside, England
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2008年 / 481卷 / 01期
基金：
英国工程与自然科学研究理事会;
关键词：
copper (II) and nickel (II) complexes; Schiff base; spectral properties;
D O I：
10.1080/15421400701833999
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The new Schiff base N,N '-bis(4-decyloxysalicyliden-N-n-propyl)-piperazine (ZOPP) was designed and synthesized. Structures were confirmed by elemental analysis and IR, H-1-NMR spectroscopy. ZOPP can act as ligand through the two set of donor atoms (one set: two nitrogen atoms and one oxygen) situated on each side of the piperazine bridge. The nature of the complexes depends strongly on the metal to ligand molar ratio. Thus, starting from metal to ligand of 1 to 1 ratio, where M=Cu(II), Ni(II), binuclear complexes with a polymeric structure have been obtained, whereas at metal to ligand molar ratio of 2 to 1, discrete binuclear complexes were formed.
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页码：26 / 33
页数：8
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