
TY  - JOUR
A1  - Dewan, JC 
A1  - Henrick, K 
A1  - White, AH 
A1  - Wild, SB 
T1  - Crystal structures of o-phenylenediarsine oxychloride (a redetermination) and o-phenylenediarsine oxybromide
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1975
VL  - 28
IS  - 1
SP  - 15
EP  - 19
KW  - 
UR  - https://doi.org/10.1071/CH9750015 
N2  - The crystal structures of the title compounds have been established by X-ray diffraction at 295 K, being refined by full-matrix least-squares to residuals of 0.054 (0.051) respectively 2715 (469) reflections with I > &#963;(I)]. Crystals are monoclinic, space group C2/c, the compounds being isomorphous. Oxychloride: a = 14.534(4), b = 8.337(2), c = 7.653(1)&#506;, &#946; = 106.48(1)°. Oxybromide: a = 14.884(4), b = 8.360(2), c = 7.726(1)&#506;, &#946; = 105.30(1)°, Z = 4. With the exception-of the arsenic- halogen distance, the geometries of the two molecules are identical within the limits of error: for the oxychloride As-O-As, 121.8(3); Cl- As-O,98.03(6); Cl-As-C, 97.2(2); O-As-C, 92. 9(2)° ; As-O, 1.787(3); As-C, 1.941(5) &#506;. As-Cl is 2.222(2) and As-Br 2.381(2) &#506;. 
ER  -

