Author:
Smith Graham,Kennard Colin H. L.,Byriel Karl A.
Abstract
The crystal structure of Nevanide (diethylammonium
p-aminobenzoate) has been determined and refined to a
residual R 0·055 for 2797 observed reflections.
Crystals are monoclinic, space group C
2/c, with 32 ion pairs in a cell with dimensions
a 29·510(6), b
17·150(1), c 20·473(5) Å, β
115·153(9)°. The structure is made up of a network of
hydrogen-bonded ions; in this network the 4-aminobenzoate anions form a
primary cyclic tetramer unit in which the amine groups of two residues are
linked tail to tail through hydrogen bonds to single carboxylate oxygens of
the other two residues. All oxygens are then linked peripherally to layers of
diethylammonium cations by strong hydrogen bonding, with all possible hydrogen
bonding sites utilized, giving a three-dimensional network array.
Cited by
7 articles.
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