
TY  - JOUR
A1  - Smith, G 
A1  - Kennard, CHL 
A1  - Shields, KG 
T1  - Insecticides. XI. Crystal structure of endosulfan, &#946;-6,7,8,9,10,10-Hexachloro-1,5,5a,6,9,9a-hexahydro-<I>endo</I>-6,9-methano-2,4,3-benzodioxathiepin 3-Oxide
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1977
VL  - 30
IS  - 4
SP  - 911
EP  - 916
KW  - 
UR  - https://doi.org/10.1071/CH9770911 
N2  - The crystal structure of hexagonal &#946;-endosulfan (&#946;1) was determined by direct methods. On a four-circle diffractometer, 2350 reflections were collected. The crystals were hexagonal, (P63/m), with Z = 6, in a cell of dimensions a = 1492.0(2), c = 1150.6(2) pm. The structure was refined by least squares to R 0.068 from 573 unique reflections having F > 2.5&#963;(F). The methylene sulphite ring showed an ?endo-endo-endo? configuration with respect to its attachment to the methano- bridged hexachlorocyclohexane and exo to the oxide portion of the sulphite group. Space group requirements for P63/m resulted in the molecules lying along the mirror planes at Z = 1/4 and 3/4. 
ER  -

