
TY  - JOUR
A1  - Farrand, A 
A1  - Gregson, AK 
A1  - Skelton, BW 
A1  - White, AH 
T1  - Crystal structure of the ferromagnetic polymer potassium Bis(carbonato)cuprate(II)
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1980
VL  - 33
IS  - 2
SP  - 431
EP  - 434
KW  - 
UR  - https://doi.org/10.1071/CH9800431 
N2  - The crystal structure of the title compound, K2Cu(CO3)2, has been determined by single-crystal X-ray diffraction at 295(1) K, and refined by least squares to a residual of 0.027 for 1441 'observed' reflections. Crystals are orthorhombic, space group Fdd2, a 11.425(3), b 17.658(4), c 6.154(2) A, Z 8. The structure comprises potassium cations embedded in an infinite three-dimensional polymeric anionic array of square-planar coordinated copper atoms with bridging carbonate groups [Cu-O 1.934(2), 1.936(2) &#506;]. Within the latter, the non- coordinating oxygen-carbon bond is shorter [1.259(3) &#506;] than the other two [1.303(3), 1.307(2) &#506;] and the O-C-O angle opposite it is correspondingly reduced to 117.1(2)&#176;. The CO3 plane lies at 83.9&#176; to the CuO4 'plane'. 
ER  -

