ISSN:
1600-5759
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0108270100012385
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