Supramolecular motifs in s-block metal-bound sulfonated monoazo dyes, part 1: structural class controlled by cation type and modulated by sulfonate aryl ring position

Chemistry : a European Journal
Alan R KennedyRachel James

Abstract

The solid-state structures of 43 Li, Na, K, Rb, Mg, Ca and Ba salts of para- and meta-sulfonated azo dyes have been examined and can be categorised into three structural classes. All form alternating organic and inorganic layers, however, the nature of the coordination network that forms these layers differs from class to class. The class of structure formed was found to be primarily governed by metal type, but can also be influenced by the nature and position of the organic substituents. Thus, for the para-sulfonated azo dyes, Mg compounds form solvent-separated ion-pair solids; Ca, Ba and Li compounds form simple coordination networks based on metal-sulfonate bonding; and Na, K and Rb compounds form more complex, higher dimensional coordination networks. Compounds of meta-sulfonated azo dyes follow a similar pattern, but here, Ca species may also form solvent-separated ion-pair solids. Significantly, this first attempt to classify such dyestuffs using the principles of supramolecular chemistry succeeds not only for the simple dyes used here as model compounds, but also for more complex molecules, similar to modern colourants.

References

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Citations

Jan 1, 2008·Acta Crystallographica. Section E, Structure Reports Online·Kazuyuki SatoJin Mizuguchi
Mar 5, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Jian LüStuart R Batten
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Feb 3, 2012·Chemistry : a European Journal·Alan R KennedyJens Stenger
Jul 20, 2012·Acta Crystallographica. Section B, Structural Science·Naomi E B BriggsCatriona A Morrison
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Apr 6, 2016·Acta Crystallographica. Section C, Structural Chemistry·Alexandr V Yatsenko, Ksenia A Paseshnichenko
Aug 3, 2020·Environmental Science and Pollution Research International·Qiong LiuBaozeng Ren
May 29, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Zhao-Peng DengShan Gao
Oct 6, 2020·Acta Crystallographica. Section C, Structural Chemistry·Heather C GardnerSimon J Teat
Jan 1, 2009·Journal of the American Chemical Society·Thomas M Klapötke, Jörg Stierstorfer
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