A structural hierarchy in the hydrogen-bonded adduct N,N'-dimethylpiperazine-tartaric acid-water (1/2/2): an N-component N-dimensional structure (N =3) with substructures having N = 1 and 2.
In the hydrated adduct N,N'-dimethylpiperazine-1,4-diium bis(3-carboxy-2,3-dihydroxypropanoate) dihydrate, [MeNH(CH2CH2)2NHMe]2+*2(C4H5O6)-*2H2O or C6H16N2(2+)*2C4H5O6-*2H2O, formed between racemic tartaric acid and N,N'-dimethylpiperazine (triclinic P-1, Z' = 0.5), the cations lie across centres of inversion. The anions alone form chains, and anions and water molecules together form sheets; the sheets are linked by the cations to form a pillared-layer framework. The supramolecular architecture thus takes the form of a family of N-dimensional N-component structures having N = 1, 2 or 3.
Farrell
Dorcas M M
DM
School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST, Scotland.
Ferguson
George
G
Lough
Alan J
AJ
Glidewell
Christopher
C