The University of Southampton
University of Southampton Institutional Repository

Two Cu21 clusters with Pseudo-D3 symmetry derived from the D-saccharate pentaanion, C6H5O8 5-

Two Cu21 clusters with Pseudo-D3 symmetry derived from the D-saccharate pentaanion, C6H5O8 5-
Two Cu21 clusters with Pseudo-D3 symmetry derived from the D-saccharate pentaanion, C6H5O8 5-

The combination of Cu(NO3)2, potassium hydrogen saccharate (KC6H9O8) and 1,10-phenanthroline (phen) yields a pair of chiral cluster compounds, each with composition Cu 21(C6H5O8)6(phen) 12(NO3)12·solvate. One of the compounds forms as orthorhombic crystals, while the other forms cubic crystals. Each of the clusters has D3 or approximate D3 symmetry, but the arrangement of the saccharate ion in the clusters is quite different in the two cases. The clusters in the cubic form interact with neighbouring clusters through face-to-face π interactions involving the phen ligands, an association that leads to the generation of very large solvent-filled spaces in the crystal structure. In contrast the clusters in the orthorhombic form are much more densely packed. At the centre of each cluster that crystallises in the orthorhombic form is a nitrate anion that binds to six CuII centres. ESI mass spectral studies indicate that the Cu21 clusters exist in solution. Solid-state magnetic studies of the cubic form of Cu21 show that antiferromagnetic coupling occurs to leave a non-zero-spin ground state, and comparisons are made to the magnetic data for other large CuII clusters.

chirality, cluster compounds, copper, crystal engineering, supramolecular chemistry
0947-6539
7454-7459
Abrahams, Brendan F.
9d8972b1-63c7-4ee8-b5b6-5ccfbcf3f798
McCormick, Laura J.
f1c2f8cd-adcc-4bbf-9289-0b33a006d2bb
Moubaraki, Boujemaa
eb24a914-5451-4870-8615-cd853a46b864
Murray, Keith S.
091a4624-9b14-4413-923b-7330444e64b2
Robson, Richard
2c74c03e-58f1-4fc3-9b11-ff00e28d09c8
Waters, Tom
10001142-cb47-4a2b-8a6e-b657c167bac0
Abrahams, Brendan F.
9d8972b1-63c7-4ee8-b5b6-5ccfbcf3f798
McCormick, Laura J.
f1c2f8cd-adcc-4bbf-9289-0b33a006d2bb
Moubaraki, Boujemaa
eb24a914-5451-4870-8615-cd853a46b864
Murray, Keith S.
091a4624-9b14-4413-923b-7330444e64b2
Robson, Richard
2c74c03e-58f1-4fc3-9b11-ff00e28d09c8
Waters, Tom
10001142-cb47-4a2b-8a6e-b657c167bac0

Abrahams, Brendan F., McCormick, Laura J., Moubaraki, Boujemaa, Murray, Keith S., Robson, Richard and Waters, Tom (2011) Two Cu21 clusters with Pseudo-D3 symmetry derived from the D-saccharate pentaanion, C6H5O8 5-. Chemistry - A European Journal, 17 (27), 7454-7459. (doi:10.1002/chem.201100451).

Record type: Article

Abstract

The combination of Cu(NO3)2, potassium hydrogen saccharate (KC6H9O8) and 1,10-phenanthroline (phen) yields a pair of chiral cluster compounds, each with composition Cu 21(C6H5O8)6(phen) 12(NO3)12·solvate. One of the compounds forms as orthorhombic crystals, while the other forms cubic crystals. Each of the clusters has D3 or approximate D3 symmetry, but the arrangement of the saccharate ion in the clusters is quite different in the two cases. The clusters in the cubic form interact with neighbouring clusters through face-to-face π interactions involving the phen ligands, an association that leads to the generation of very large solvent-filled spaces in the crystal structure. In contrast the clusters in the orthorhombic form are much more densely packed. At the centre of each cluster that crystallises in the orthorhombic form is a nitrate anion that binds to six CuII centres. ESI mass spectral studies indicate that the Cu21 clusters exist in solution. Solid-state magnetic studies of the cubic form of Cu21 show that antiferromagnetic coupling occurs to leave a non-zero-spin ground state, and comparisons are made to the magnetic data for other large CuII clusters.

Full text not available from this repository.

More information

e-pub ahead of print date: 1 June 2011
Published date: 27 June 2011
Keywords: chirality, cluster compounds, copper, crystal engineering, supramolecular chemistry

Identifiers

Local EPrints ID: 437886
URI: http://eprints.soton.ac.uk/id/eprint/437886
ISSN: 0947-6539
PURE UUID: b55fa9a2-2251-4986-877e-f01a293fc021
ORCID for Laura J. McCormick: ORCID iD orcid.org/0000-0002-6634-4717

Catalogue record

Date deposited: 21 Feb 2020 17:31
Last modified: 07 Oct 2020 02:27

Export record

Altmetrics

Contributors

Author: Brendan F. Abrahams
Author: Boujemaa Moubaraki
Author: Keith S. Murray
Author: Richard Robson
Author: Tom Waters

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×