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SnH2OCl2H2O crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four stannous chloride hydrate molecules and four water molecules.
SnCl4(H2O)2(H2O)3 crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of twelve water molecules and four SnCl4(H2O)2 clusters. In each SnCl4(H2O)2 cluster, Sn4+ is bonded in an octahedral geometry to two equivalent O2- and four Cl1- atoms. Both Sn–O bond lengths are 2.16 Å. All Sn–Cl bond lengths are 2.43 Å. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.01 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. O2- is bonded in a distorted bent 120 degrees geometry to one Sn4+ and two H1+ atoms. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Sn4+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Sn4+ atom.
Sn(H2O)3(ClO4)2 crystallizes in the hexagonal P6_3 space group. The structure is zero-dimensional and consists of four ClO4 clusters and two Sn(H2O)3 clusters. In each ClO4 cluster, there are two inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one Cl atom. The O–Cl bond length is 1.46 Å. In the second O site, O is bonded in a single-bond geometry to one Cl atom. The O–Cl bond length is 1.49 Å. Cl is bonded in a tetrahedral geometry to four O atoms. In each Sn(H2O)3 cluster, Sn is bonded in a 3-coordinate geometry to three equivalent O atoms. All Sn–O bond lengths are 2.28 Å. There are two inequivalent H sites. In the first H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the second H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.98 Å. O is bonded in a distorted water-like geometry to one Sn and two H atoms.