
TY  - JOUR
A1  - Bott, RC 
A1  - Sagatys, DS 
A1  - Lynch, DE 
A1  - Smith, G 
A1  - Kennard, CHL 
T1  - The Preparation and Crystal Structure of Polymeric Anhydrous Sodium Hydrogen o-Phenylenedioxydiacetate
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1992
VL  - 45
IS  - 5
SP  - 947
EP  - 952
KW  - 
UR  - https://doi.org/10.1071/CH9920947 
N2  - The crystal structure of anhydrous sodium hydrogen o-phenylenedioxydiacetate , [Na2( Hbdda )2]n, has been determined by X-ray methods and refined to a residual R 0.031 for 1234 observed reflections. Crystals are monoclinic, space group C2/c with Z 4 in a cell of dimensions a 18.415(6), b 7.4667(7), c 16.354(7) Å ,&#946;112.61(2)º. The dimeric repeating unit has two centrosymmetrically related pentagonal pyramidal Na-O6 complex centres [Na-0, 2.272-2.439(2) Å ] bridged by carboxylate  oxygens. The pentagonal plane comprises four oxygens from the Hbdda ligand as well as one providing the bridging link. The axial bond gives the step-polymer link while the carboxylic acid proton is hydrogen bonded to a carboxylate oxygen of the inversion-related Hbdda ligand [O&#8230;O, 2.469(2) Å ]. 
ER  -

