Antimony trichloride geometry

Antimony, tris(ethyldithiocarbonato)-stereochemistry, 82 structure, 82 Antimony, tris(oxalato)-stereochemistry, 82 structure, 82 Antimony tribromide stereochemistry, 36 Antimony trichloride geometry, 36 stereochemistrv, 36 Antimony trifluoride geometry, 36 stereochemistry, 36 Antimony trihalides stereochemistry, 36 Antimony triiodidc sulfur complex stereochemisir), 36 Aquapentaammine complexes structure, 8 Aquation, 291... 

In the phenanthrene-antimony trichloride complex, the Sb atom can be considered to have trigonal-bipyramidal geometry if the lone pairs are included. One lone pair appears to be interacting with the ir-systen on one phenyl ring of the phenanthrene molecule and the other forms an association with a chlorine atom of a neighbouring SbCla molecule (Figure 13). 

Diorganoantimony(V) trihalides seem to prefer six-coordinate, octahedral geometry, and as a consequence will associate into dimers. Thus, dimethylantimony(V) trichloride, Me2SbCl3, was found to be a dimer fMe2SbCl2(A/-Cl)]2, 154, with bridging chlorines, Sb-Cl 2.35 A and Sb- -Cl 2.80 A. A second isomeric form of this compound exists as an ion pair, [SbMe4]+[SbCl6] this illustrates the coordination preferences of antimony [391]. 

---