
%0 Journal Article
%A Dewan, JC 
%A Henrick, K 
%A White, AH 
%A Wild, SB 
%T Crystal structures of o-phenylenediarsine oxychloride (a redetermination) and o-phenylenediarsine oxybromide
%J Australian Journal of Chemistry
%D 1975/01/01
%V 28
%N 1
%P 15-19
%K 
%R https://doi.org/10.1071/CH9750015
%U https://www.publish.csiro.au/paper/CH9750015 
%X 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;. 
