Picture of smart phone in human hand

World leading smartphone and mobile technology research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by Strathclyde researchers from the Department of Computer & Information Sciences involved in researching exciting new applications for mobile and smartphone technology. But the transformative application of mobile technologies is also the focus of research within disciplines as diverse as Electronic & Electrical Engineering, Marketing, Human Resource Management and Biomedical Enginering, among others.

Explore Strathclyde's Open Access research on smartphone technology now...

Supramolecular structure in s-block metal complexes of sulfonated monoazo dyes : discrepant packing and bonding behavior of ortho-sulfonated azo dyes

Kennedy, A.R. and Andrikopoulos, P.C. and Arlin, J.B. and Armstrong, D.R. and Duxbury, N. and Graham, D.V. and Kirkhouse, J.B.A. (2009) Supramolecular structure in s-block metal complexes of sulfonated monoazo dyes : discrepant packing and bonding behavior of ortho-sulfonated azo dyes. Chemistry - A European Journal, 15 (37). pp. 9494-9504. ISSN 0947-6539

Full text not available in this repository. Request a copy from the Strathclyde author

Abstract

The first solid-state structures of ortho-sulfonated monoazo dyestuffs are reported and compared to those of their para- and meta-sulfonated analogues. The structures of the 16 Na, K, Cs, Mg, Ca, Sr, and Ba ortho-sulfonated salts are found to have fewer MO3S bonds than their isomeric equivalents and this in turn means that the metal type is no longer the prime indicator of which structural type will be adopted. MO3S bonds are replaced by MOH2, MHOR and M- interactions, apparently for steric reasons. As well as new bonding motifs, the changed dye shape also leads to new packing motifs. The simple organic/inorganic layering ubiquitous to the para- and meta-sulfonated dye salt structures is replaced by variations (organic bilayers, inorganic channels), each of which correlates with a different degree of molecular planarity in the sulfonated azo dye anion.