CRYSTALLINE COMPLEXES INVOLVING AMINO-ACIDS .2. (R)-(-)-1-PHENYLGLYCINIUM HYDROGEN SQUARATE MONOHYDRATE

Authors
ANGELOVA O PETROVA R RADOMIRSKA V KOLEV T
Citation
O. Angelova et al., CRYSTALLINE COMPLEXES INVOLVING AMINO-ACIDS .2. (R)-(-)-1-PHENYLGLYCINIUM HYDROGEN SQUARATE MONOHYDRATE, Acta crystallographica. Section C, Crystal structure communications, 52, 1996, pp. 2218-2220
Citations number
13
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
52
Year of publication
1996
Part
9
Pages
2218 - 2220
Database
ISI
SICI code
0108-2701(1996)52:<2218:CCIA.(>2.0.ZU;2-O
Abstract
The title compound, C8H10NO2+.C4HO4-.H2O, crystallizes in the orthorho mbic space group P2(1)2(1)2(1) in a layered structure of charged pheny lglycinium and squarate/water layers stacked along the c axis and held together by an extensive hydrogen-bonding network. The amino group of the phenylglycine molecule adopts a proton from the squaric acid. The C-C bond lengths within the squarate anion are consistent with a delo calized double bond around the hydroxyl-bearing C atom: 1.414 (3) and 1.431 (3) Angstrom versus 1.481 (3) and 1.494 (3) Angstrom for the opp osite bonds in the ring.