Issue 15, 2001
From the journal:

Journal of the Chemical Society, Dalton Transactions

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

Liselotte Siegfried,a   Thomas A. Kaden,*a   Franc Meyer,*b   Peter Kircherb  and  Hans Pritzkowb  

* Corresponding authors

a Institut für Anorganische Chemie der Universität Basel, Spitalstraße 51, CH-4056 Basel, Switzerland
E-mail: th.kaden@unibas.ch

b Anorganisch-Chemisches Institut der Universität Heidelberg, Im Neuenheimer Feld 270, D-69120, Heidelberg, Germany
E-mail: franc.meyer@urz.uni-heidelberg.de

Abstract

The stability of Ni2+, Cu2+, and Zn2+ complexes with a bis(tetradentate) compartmental pyrazolate ligand (L) was determined in aqueous solution at 25 °C 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.

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

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Article information

DOI
https://doi.org/10.1039/B102015N
Article type
Paper
Submitted
02 Mar 2001
Accepted
25 May 2001
First published
04 Jul 2001

J. Chem. Soc., Dalton Trans., 2001, 2310-2315

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

L. Siegfried, T. A. Kaden, F. Meyer, P. Kircher and H. Pritzkow, J. Chem. Soc., Dalton Trans., 2001, 2310 DOI: 10.1039/B102015N

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