title: Poly[tetra-butyl-tetra-kis-(μ(2)-hydrogen phenyl-phospho-nato)ditin(IV)].
abstract: In the title compound, [Sn(2)(C(4)H(9))(4)(C(6)H(6)PO(3))(4)](n), the basic unit is a dimer containing two symmetry-related Sn(IV) atoms bridged by two hydrogenphenylphosphonate anions. This fragment is located about an inversion center, and each Sn(IV) atom is linked to two other hydrogenphenylphosphonate anions, giving a layered structure parallel to (010). The coordination geometry for the Sn(IV) atoms is close to octa-hedral. The layers are connected via O-H⋯O hydrogen bonds, generating a three-dimensional network. One butyl group is disordered over two sets of sites, with occupancies of 0.49 (2) and 0.51 (2).
authors.affiliation: Laboratoire de Chimie Minérale et Analytique, Département de Chimie, Faculté des Sciences et Techniques-Université Cheikh Anta Diop, Dakar,  Senegal.
authors.forename: Modou
authors.initials: M
authors.lastname: Sarr
authors.forename: Aminata
authors.initials: A
authors.lastname: Diasse-Sarr
authors.forename: Libasse
authors.initials: L
authors.lastname: Diop
authors.forename: Kieran C
authors.initials: KC
authors.lastname: Molloy
authors.forename: Gabriele
authors.initials: G
authors.lastname: Kociok-Kohn