Abstract
The salt [PPh4]2[Sn2Ph2Se4] was prepared by reduction of an alloy of nominal composition Bi2Sn3Se6 by potassium in the presence of tetraphenylphosphonium bromide. Its structure has been determined by single-crystal X-ray diffraction. The anion [Sn2Ph2Se4]2– contains a square-planar Sn2Se4 ring, exo-selenium atoms and the phenyl groups are attached, in a trans configuration, to tin atoms which are approximately tetrahedrally co-ordinated. The stability of the experimental trans geometry as well as that of the alternative cis configuration of the anion has been investigated by means of extended-Huckel molecular-orbital calculations.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
