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Updated: May 15, 2026

Synthesis and Structure Determination of µ-Conotoxin PIIIA Isomers with Different Disulfide Connectivities
Published on: October 2, 2018
Poly[tetra-butyl-tetra-kis-(μ(2)-hydrogen phenyl-phospho-nato)ditin(IV)]
Modou Sarr1, Aminata Diasse-Sarr, Libasse Diop
1Laboratoire de Chimie Minérale et Analytique, Département de Chimie, Faculté des Sciences et Techniques-Université Cheikh Anta Diop, Dakar, Senegal.
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).
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