Issue 38, 2010

Stabilization of acyclic water tetramer in a copper(ii) malonate framework structure

Abstract

Copper(II) complex [Cu(dpq)(mal)(H2O)]·3H2O (1) (dpq = dipyrido-[3,2-d:2′,3′-f]-quinoxaline, mal = malonato) was synthesized and characterized by elemental analysis, infrared spectroscopy, thermogravimetric analysis and single-crystal X-ray crystallography. The single-crystal X-ray structure of 1 reveals a square pyramidal structure, with the dipyrido-[3,2-d:2′,3′-f]-quinoxaline and malonato at the equatorial positions and a water molecule at the axial position. The molecule acts as a building block generating a supramolecular three-dimensional metal–organic framework (MOF) encapsulating metal linked acyclic water tetramer. The H-bonding capacity of malonato and the π–π stacking interactions of dipyrido-[3,2-d:2′,3′-f]-quinoxaline further reinforce the framework. The copper(II) bound hydroxyl group is demonstrated to mediate hydrolytic cleavage of plasmid pBR322 DNA under dark conditions.

Graphical abstract: Stabilization of acyclic water tetramer in a copper(ii) malonate framework structure

Supplementary files

Article information

Article type
Paper
Submitted
24 Mar 2010
Accepted
25 Jun 2010
First published
27 Aug 2010

Dalton Trans., 2010,39, 9146-9152

Stabilization of acyclic water tetramer in a copper(II) malonate framework structure

M. S. Deshpande, A. S. Kumbhar and C. Näther, Dalton Trans., 2010, 39, 9146 DOI: 10.1039/C0DT00672F

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