Please use this identifier to cite or link to this item: https://doi.org/10.1039/b800797g
Title: Co-crystallisation of 2,2′-dithiodibenzoic acid with the isomeric n-pyridinealdazines, n = 2, 3 and 4: Supramolecular polymers and the influence of steric factors upon aggregation patterns
Authors: Broker, G.A.
Bettens, R.P.A. 
Tiekink, E.R.T.
Issue Date: 2008
Citation: Broker, G.A., Bettens, R.P.A., Tiekink, E.R.T. (2008). Co-crystallisation of 2,2′-dithiodibenzoic acid with the isomeric n-pyridinealdazines, n = 2, 3 and 4: Supramolecular polymers and the influence of steric factors upon aggregation patterns. CrystEngComm 10 (7) : 879-887. ScholarBank@NUS Repository. https://doi.org/10.1039/b800797g
Abstract: The structure of the 1:1 co-crystal formed between the dicarboxylic acid, 2,2′-dithiodibenzoic acid, and each of the isomeric 3- and 4-pyridinealdazines features a supramolecular zig-zag chain constructed about the O-Hacid⋯Npyridine synthon. By contrast, using the same experimental conditions, only a 2:3 co-crystal could be formed when the isomeric 2-pyridinealdazine was used. Here, a pentamer is found, stabilised by the O-Hacid⋯Npyridine synthon and these associate to form a supramolecular chain via C-H⋯π contacts. Theory shows no significant differences in the basicity of the pyridine-nitrogen atoms leading to the conclusion that it is the steric congestion related to the relative disposition of the 2-pyridine nitrogen that is responsible for the observed behaviour. © The Royal Society of Chemistry.
Source Title: CrystEngComm
URI: http://scholarbank.nus.edu.sg/handle/10635/93321
ISSN: 14668033
DOI: 10.1039/b800797g
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