2‐Amino‐5‐chloro‐1,3‐benzoxazol‐3‐ium 2‐(3,4‐dichlorophenoxy)acetate |
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Authors: | Daniel E Lynch David Daly Simon Parsons |
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Abstract: | The 1:1 organic salt of the title compound, C7H6ClN2O+·C8H5Cl2O3? or (2‐ABOX)(3,4‐D)], comprises the two constituent molecules associated by an R22(8) graph‐set interaction through the carboxylate group of 3,4‐D across the protonated N/N sites of 2‐ABOX N?O 2.546 (3) and 2.795 (3) Å]. Cation/anion pairs associate across an inversion centre forming discrete tetramers via an additional three‐centre hydrogen‐bonding association from the latter N amino proton to a phenoxy O atom N?O 3.176 (3) Å] and a carboxylate O atom N?O 2.841 (3) Å]. This formation differs from the polymeric hydrogen‐bonded chains previously observed for adduct structures of 2‐ABOX with carboxylic acids. |
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