Complexes of a bis(tetradentate) compartmental pyrazolate ligand: solution studies and solid state structures

被引：28
|
作者：
Siegfried, L
Kaden, TA
Meyer, F
Kircher, P
Pritzkow, H
机构：
[1] Univ Basel, Inst Anorgan Chem, CH-4056 Basel, Switzerland
[2] Heidelberg Univ, Inst Anorgan Chem, D-69120 Heidelberg, Germany
来源：
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 2001年 / 15期
关键词：
D O I：
10.1039/b102015n
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The stability of Ni2+, Cu2+, and Zn2+ complexes with a bis(tetradentate) compartmental pyrazolate ligand (L) was determined in aqueous solution at 25 degreesC and I=0.5 M (KNO3). Thereby a series of mononuclear [MLHn] (n=2, 1, 0, -1, and -2) and dinuclear species [M2LHm] (m= 0, -1, -2) was observed. The stability of [ML] and [M2L] increases in the order Ni2+< Zn2+< Cu2+, whereby in the case of Ni2+ no dinuclear species could be detected. Structural proposals for several species were corroborated by X-ray diffraction studies. In all cases the pyrazolate group has a pronounced tendency to bridge two metal ions.
引用
收藏
页码：2310 / 2315
页数：6
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