Figure 1 Ball-and-stick model of title compound with the atomic numbering scheme used; with exception of the hydrogen atoms, which are shown as spheres with common isotropic radius, all other atoms are represented as thermal displacement ellipsoids showing the 50% probability level of the corresponding atom; the statistically disordered n-butyl group of Sn3 is shown in case the major (90%) one at Sn3 and in case of the minor one (10%) at Sn3i; symmetry code: (i) -x + [{1\over 2}], -y + [{3\over 2}], -z.  [article HTML]