Abstract
The preparation and crystal structure determination of the adduct [Sb(S2COEt)3],0.5C10H8N2 is reported. Crystals are triclinic, Pī, a 6.064(3), b 10.825(6), c 17.723(7) Ǻ, α 104.77(4), β 96.78(3), γ 97.14(4)°, Z 2. The compound is a lattice adduct, the bipyridyl molecule being located about a crystallographic centre of symmetry. The complex molecule geometry is unlike that of the compound [Sb(S2COEt)3]; in the latter the molecule has crystallographic symmetry 3, the three equivalent ligands being unsymmetrically coordinated, while in the present molecule the chirality is lost, the molecule conforming to approximate pseudo-m symmetry: two ligands are similar [Sb-S, 2.615(2), 2.892(2); 2.612(2), 2.878(2) Ǻ] and the other, located in the pseudo-mirror plane, is different [Sb-S, 2.477(2), 3.091(2) Ǻ]. Electron-pair repulsion theory shows that the bond angles, the relative bond lengths, and the coexistence of different stereoisomers of this molecule, can be ascribed to the stereochemically active lone pair of electrons being close to the antimony atom.
Sign-in/Register to access full text options 
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
