Glycine–D-tartaric acid (1/1)

Abstract

In the title co-crystal, C2H5NO2·C4H6O6, the gylcine mol­ecule is present in the zwitterion form. In the tartaric acid mol­ecule there is a short intra­molecular O—H⋯O contact. In the crystal, the tartaric acid mol­ecules are linked via pairs of O—H⋯O hydrogen bonds, forming inversion dimers. These dimers are linked via a number of O—H⋯O and N—H⋯O hydrogen bonds involving the two components, forming a three-dimensional network.

Supramolecular hydrogen-bonding patterns in two cocrystals of the N(7)–H tautomeric form ofN6-benzoyladenine:N6-benzoyladenine–3-hydroxypyridinium-2-carboxylate (1/1) andN6-benzoyladenine–DL-tartaric acid (1/1)

“…The angle between the planes of the half molecules (O2/O3/C17/C18/O4 and O6/O7/C20/C19/O5) is 66.29 (10) , which is close to the value of 54.6 observed in the TA structure. The carbon skeleton of the TA molecule is nearly planar, as evident from the C17-C18-C19-C20 torsion angle of 171.90 (15) (Okaya et al, 1966;Mohandas et al, 2013).…”

“…Tartaric acid has been widely used in food additives (for souring, making wine or as a leavening agent), for making silver mirrors, in the pharmaceutical industry and in catalysis (Luner et al, 2002;Gratzer et al, 2013). Various salts and compounds of tartaric acid have been reported to date (Farrell et al, 2002;Thanigaimani et al, 2007;Smith et al, 2007;Mohandas et al, 2013). Recently, our group reported several N 6 -benzyladenine and N 6 -furfuryladenine compounds with different halides, carboxylic acids and metal complexes, with special emphasis on their hydrogen-bonding interactions and supramolecular architectures (Jennifer et al, 2014;Nirmalram et al, 2011;Stanley et al, 2003;Umadevi et al, 2001Umadevi et al, , 2002.…”

The effect of amino acid backbone length on molecular packing: crystalline tartrates of glycine, β-alanine, γ-aminobutyric acid (GABA) andDL-α-aminobutyric acid (AABA)

“…dl-Tartaric acid (containing two carboxylic acid groups and two hydroxy groups capable of forming hydrogen bonds) has been reported to form a cocrystal with glycine, (I), as opposed to a salt (Mohandas et al, 2013;Losev et al, 2016). In the present work, we report a novel cocrystal of -alanine with dl-tartaric acid, (II), and three new molecular salts of dl-tartaric acid with -alanine, (III), GABA, (IV), and dl-AABA, (V) (see Scheme 2).…”

“…Interestingly, two new compounds, namely cocrystal (II) and molecular salt (III), with the same 1:1 stoichiometry have been obtained in the '-alanine-dl-tartaric acid' system. The crystal structures of (II), (III), (IV) and (V) were solved and refined from singlecrystal X-ray diffraction data and compared both with each other and with the structure of the cocrystal of glycine with dltartaric acid, (I) (Mohandas et al, 2013;Losev et al, 2016). All the compounds have been characterized by X-ray powder diffraction and IR spectroscopy (see the FT-IR section in the supporting information), their melting points have been determined and the melting of the single crystals has been observed by hot-stage microscopy (see the Hot-Stage Microscopy section in the supporting information).…”

Polymorphic transformations in glycine co-crystals at low temperature and high pressure: two new examples as a follow-up to a glycine–glutaric acid study

“…for the 1:1 adduct formed between squaric acid and 4,4-bipyridine 12 or for oxalic acid dihydrate with increasing pressure. [30][31][32] Three glycine co-crystals with carboxylic acids have been reported to date, namely those with glutaric, 21,22 DL-tartaric 24 and phtalic 23 acids (GGa, GTa, and GPh, respectively) ( Fig. 1).…”