{4-Hy-droxy-N'-[(2E,3Z)-4-oxido-4-phenyl-but-3-en-2-yl-idene]benzo-hydra-zidato}diphenyl-tin(IV) methanol monosolvate

Abstract

Two independent diphenyl-tin mol-ecules and two independent methanol mol-ecules comprise the asymmetric unit of the title compound, [Sn(C(6)H(5))(2)(C(17)H(14)N(2)O(3))]·CH(3)OH. The Sn atom in each is five-coordinated by a tridentate ligand and the ipso-C atoms of the Sn-bound benzene substituents. The resulting C(2)N(2)O donor set defines a coordination geometry that is inter-mediate between trigonal-bipyramidal (TP) and square-pyramidal (SP), with one mol-ecule slightly tending towards TP and the other slightly towards SP. The mol-ecules differ in terms of the relative orientations of the terminal benzene rings [dihedral angles = 45.71 (18) and 53.98 (17)°] and of the Sn-bound benzene substituents [dihedral angles = 59.5 (2) and 45.77 (18)°, respectively]. The most prominent feature of the crystal packing is the formation of four-mol-ecule aggregates via O-H⋯O and O-H⋯N hydrogen bonds, in which the hy-droxy group is connected to a methanol mol-ecule which, in turn, is linked to a non-coordinating N atom. Weak C-H⋯π inter-actions also occur.

Fig. 1.

The molecular structure of the first independent molecule of (I) showing displacement ellipsoids at the 50% probability level.

Fig. 2.

The molecular structure of the second independent molecule of (I) showing displacement ellipsoids at the 50% probability level.

Fig. 3.

Overlay diagram of the two independent Sn-containing molecules comprising the asymmetric unit of (I). The first independent molecule (with the Sn1 atom) is shown in red.

Fig. 4.

A view of the supramolecular four molecule aggregate of Sn1-containing and methanol molecules in (I). The O—H···O and O—H···N hydrogen bonds are shown as orange and blue dashed lines, respectively.

Fig. 5.

A view in projection down the b axis of the crystal packing in (I) which comprises alternating layers of Sn1 and Sn2 molecules.