Nickel(II) complexes of fully and partially condensed Schiff-base ligands derived from tris(3-aminopropyl)amine and acetylpyridine

被引:26
作者
Keypour, H [1 ]
Salehzadeh, S
Pritchard, RG
Parish, RV
机构
[1] BuAli Sina Univ, Dept Chem, Hamadan, Iran
[2] UMIST, Dept Chem, Manchester M60 1QD, Lancs, England
关键词
D O I
10.1023/A:1006919725480
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
In the presence of nickel(II), 2-acetylpyridine condenses with tris(3-aminopropyl)amine in absolute MeOH to give the fully condensed Schiff-base complex [Ni(tptpy3)](2+). Although the ligand is potentially heptadentate, the metal atom is effectively six-coordinate, interaction with the bridgehead nitrogen being rather weak. However, when aqueous MeOH is used, the condensation is limited to a single step, and a complex of the pentadentate mono-Schiff base adduct is formed, [Ni(tptpy)(H2O)](2+), which was characterised by X-ray diffraction of its PF6- salt.
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页码:605 / 607
页数:3
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