Crystal structure of catena-poly[[aquadi-n-propyl-tin(IV)]-?-oxalato].

ABSTRACT: The title compound, [Sn(C3H7)2(H2O)(C2O4)] n , represents the first diorganotin(IV) oxalate hydrate to be structurally characterized. The tin(IV) atom of the one-dimensional coordination polymer is located on a twofold rotation axis and is coordinated by two chelating oxalate ligands with two slightly different Sn-O bond lengths of 2.290?(2) and 2.365?(2)?Å, two symmetry-related n-propyl groups with a Sn-C bond lengths of 2.127?(3)?Å, and a water mol-ecule with a Sn-O bond length of 2.262?(2)?Å. The coordination polyhedron around the Sn(IV) atom is a slightly distorted penta-gonal bipyramid with a nearly linear axis between the trans-oriented n-propyl groups [C-Sn-C = 176.8?(1)°]. The bond angles between the oxygen atoms of the equatorial plane range from 70.48?(6)° to 76.12?(8)°. A one-dimensional coordination polymer results from the less asymmetric bilateral coordination of the centrosymmetric oxalate anion, inter-nally reflected by two slightly different C-O bond lengths of 1.248?(3) and 1.254?(3)?Å. The chains of the polymer propagate parallel to [001] and are held together by hydrogen bonds between water mol-ecules and oxalate anions of neighboring chains, leading to a two-dimensional network parallel to (100).

SUBMITTER: Reichelt M 

PROVIDER: S-EPMC4158495 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature