
TY  - JOUR
A1  - Smith, Graham 
A1  - Baldry, Katherine E. 
A1  - Kennard, Colin H. L. 
A1  - Byriel, Karl A. 
T1  - The Preparation and Crystal Structure of the 1 : 1 Adduct of Glycine with Urea
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1997
VL  - 50
IS  - 7
SP  - 737
EP  - 740
KW  - 
UR  - https://doi.org/10.1071/C96205 
N2  - The 1 : 1 adduct of the a-amino acid glycine with urea has been prepared and its crystal structure determined by X-ray crystallography and refined to a residual R 0&#183;028 for 776 observed reflections. Crystals are monoclinic, pace group P21 with two molecules in a cell of dimensions a 7&#183;364(1), b 4&#183;8703(2), c 8&#183;494(1) &#197;, &#946; 98&#183;555(7)&#176;. The polymeric structure is based on a primary cyclic hydrogen-bonded nine-membered ring involving both the carboxyl oxygen and an amino hydrogen of the zwitterionic glycine molecule with the urea amine hydrogen and oxygen respectively. These repeat down the twofold screw axis by hydrogen bonding, with additional lateral interactions completing the three-dimensional network structure 
ER  -

