
TY  - JOUR
A1  - Kelly, Julian F. 
A1  - Krausz, Elmars R. 
A1  - Samoc, Anna 
A1  - Samoc, Marek 
A1  - Willis, Anthony C. 
T1  - Crystal Structure of the Second-Order Nonlinear Optical Addition Complex AsI<emph type="8">3</emph>&#x00B7;3S<emph type="8">8</emph>
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 2002
VL  - 55
IS  - 11
SP  - 709
EP  - 714
KW  - 
UR  - https://doi.org/10.1071/CH02106 
N2  - The arsenic triiodide&#8211;sulfur adduct, AsI3&#x00B7;3S8 is a new nonlinear optical acceptor&#8211;donor intermolecular complex of relatively high second-order susceptibility, &#967;(2) ca. 10&#8211;11 m V&#8211;1. Single crystals formed by addition of AsI3, and octasulfur, S8, in the molar ratio 1 : 3 were grown from solution. The space group is R3m, a 24.739(2) &#197;, c 4.412(3) &#197;, V 2338(1) &#197;3, Z 3. The arsenic triiodide molecules occupy C3v symmetry sites with the molecular three-fold symmetry axis parallel to the polar crystal c axis. S8 retains the crown conformation. Each of the three iodine atoms of the acceptor molecule, AsI3, is involved in charge-transfer contacts to the chalcogen donor atoms of the partner S8 molecules. The adduct structure has been analysed in the context of remarkable differences between nonlinear optical properties of AsI3&#x00B7;3S8 and the isomorphous complexes, CHI3&#x00B7;3S8 and SbI3&#x00B7;3S8. 
ER  -

