Issue 28, 2012

Bimetallic coordination networks based on Al(acacCN)3: a building block between inertness and lability

Abstract

The Al(III) complex of 3-cyanopentane-2,4-dionate (acacCN) features peripheric nitrile groups which may coordinate to silver cations. As the Al(acacCN)3 building block ranges between inertness and lability, its reactivity towards Ag(I) salts depends on the solvent and the weakly or non-coordinating counter anions; an impressive range of different extended structures has been encountered. With AgPF6, the original building block is retained and hexafluorophosphate remains uncoordinated. A highly symmetric 3D crystalline solid forms in the presence of trichloromethane, and with benzene a tetrasolvate with large solvent-filled voids is obtained. Two different classes of reaction products with silver triflate have been observed. In addition to networks incorporating Al(acacCN)3, partial solvolysis may lead to a dinuclear methoxide-bridged derivative. The resulting Al2(μ-OMe)2 core may be perceived as a four-connected node in a self-interpenetrating 3D network. Earlier studies reported transmetalation for the reaction of Al(acacCN)3 with AgNO3 and we find the same reactivity for silver tetrafluoroborate. Full degradation of the Al(III) building block with formation of [Ag(acacCN)] is observed.

Graphical abstract: Bimetallic coordination networks based on Al(acacCN)3: a building block between inertness and lability

Supplementary files

Article information

Article type
Paper
Submitted
19 Mar 2012
Accepted
15 May 2012
First published
15 May 2012

Dalton Trans., 2012,41, 8594-8599

Bimetallic coordination networks based on Al(acacCN)3: a building block between inertness and lability

C. Merkens, N. Becker, K. Lamberts and U. Englert, Dalton Trans., 2012, 41, 8594 DOI: 10.1039/C2DT30623A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements