Issue 47, 2013

Doubly-bridged PNP-lariat ethers and their complexes with silver(i) ions in methanol solution

Abstract

We report the preparation of four new double-bridged PNP-lariat ether derivatives L1–L4 synthesized from precursor 1 by the subsequent substitution of chlorine atoms. The process consists of two steps. In the first one two reactive chlorine atoms of the –PCl2 exocyclic moiety are substituted with respective nucleophiles: 2,2′-thiodiethanethiol 2 and 2,2′-oxydiethanethiol 3. In the second step the other chlorine atoms are substituted by aziridynyl 6 and pyrrolidinyl 7 groups, respectively. Their structures were established by MS, 1H NMR, 31P NMR, 13C NMR spectroscopy. Furthermore, this work includes the investigation of complexation of silver(I) ions with the new ligands L1–L4 in methanol solution. The formation of the novel tetra-nuclear silver(I) complexes were observed. Stability constants were determined using a simple potentiometric titration. 1H NMR, 31P NMR, 13C NMR spectra were recorded to investigate how the complexation of silver(I) ions by the investigated macrocyclic ligands occurs.

Graphical abstract: Doubly-bridged PNP-lariat ethers and their complexes with silver(i) ions in methanol solution

Article information

Article type
Paper
Submitted
19 Jul 2013
Accepted
18 Oct 2013
First published
21 Oct 2013
This article is Open Access
Creative Commons BY license

RSC Adv., 2013,3, 25351-25359

Doubly-bridged PNP-lariat ethers and their complexes with silver(I) ions in methanol solution

N. Sołtys, P. Seliger, G. Andrijewski and M. Siwy, RSC Adv., 2013, 3, 25351 DOI: 10.1039/C3RA43786H

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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