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Synthesis, characterization and in‐vitro antitumour activity of dibutyltin carboxylates involving the perfluorophenyl moiety: Crystal structure of the dimeric bis[(4‐fluoro‐ and pentafluoro‐benzoato)di‐n‐butyltin] oxides
Author(s) -
Gielen Marcel,
Tiekink Edward R. T.,
Bouhdid Abdeslam,
de Vos Dick,
Biesemans Monique,
Verbruggen Ingrid,
Willem Rudolph
Publication year - 1995
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.590090720
Subject(s) - triclinic crystal system , chemistry , carboxylate , crystal structure , crystallography , tin , stereochemistry , moiety , crystal (programming language) , organic chemistry , computer science , programming language
Abstract Crystal structure determinations of {[(F 5 C 6 COO)Bu 2 Sn] 2 O} 2 and {[(4‐F‐C 6 H 4 COO)‐Bu 2 Sn] 2 O} 2 show that the structures are similar and feature central Bu 4 Sn 2 O 2 units with two Bu 2 Sn groups connected by bridging oxygen atoms. Each pair of exo‐ and endo‐cyclic tin atoms is linked by an almost symmetrically bridging carboxylate group, with the two remaining groups attached to the exocyclic tin atom only. Crystals of {[(F 5 C 6 COO)Bu 2 Sn] 2 O} 2 are triclinic, space group P 1, with unit cell dimensions a = 12.425(3) Å, b = 13.090(5) Å, c = 11.697(3) Å, α = 95.31(3)°, β = 93.28(2)°, γ = 113.01(2)°, V = 1734(1) Å 3 , Z = 1. Crystals of {[(4‐F‐C 6 H 4 COO)Bu 2 Sn] 2 O} 2 , are also triclinic, space group P I, a = 12.599(6) Å, b = 25.359(4) Å, c = 11.480(4) Å, α = 91.44(3)°, β = 114.77(3)°, γ=97.43(3)°, V =3289(2) Å 3 , Z =2. The structures were refined to final R = 0.046, R w = 0.046 for 4312 reflections with I ≥ 3.0 σ(l) for {[(F 5 C 6 COO)Bu 2 Sn] 2 O} 2 and R =0.061, R w =0.068 for 4112 reflections with l ≥3.0 σ( l for {[(4‐F‐C 6 H 4 COO)Bu 2 Sn] 2 O} 2 .