
TY  - JOUR
A1  - Bott, RC 
A1  - Sagatys, DS 
A1  - Lynch, DE 
A1  - Smith, G 
A1  - Kennard, CHL 
A1  - Mak, TCW 
T1  - The Preparation and Crystal Structure of Ammonium Bis[citrato(3-)]cuprate(II)
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1991
VL  - 44
IS  - 10
SP  - 1495
EP  - 1498
KW  - 
UR  - https://doi.org/10.1071/CH9911495 
N2  - The copper(II) complex with citric acid (NH4)4 [Cu(C6H5O7)2] has been prepared, and its structure determined by X-ray diffraction, giving a residual R 0.035 for 1208 observed reflections. Crystals are monoclinic, space group P21/c with Z 2 in a cell of dimensions a 8.755(3), b 13.185(4), c 9.364(2)&#506;, &#946; 113.73(2)&#176;. The complex is a centrosymmetric six-coordinate monomer which is isomorphous with ammonium zinc(II) citrate. However, the Cu-O(hydroxyl) bonds [2.341(3)&#506;] show Jahn-Teller distortion relative to the Cu-O(carboxyl) bonds [1.969(3) and 1.977(3)&#506;]. 
ER  -

